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S1385894720312018 | Flexible polyvinylidene fluoride films with various heterogeneous alternating multilayer structure containing high aligned graphene nanosheets and Ni nanochains were designed for electromagnetic interference shielding and heat dissipation applications . Because of the unique structure and highly aligned nanofillers effective electron and phonon conductive paths were formed in HAMS films with optimal electrical and thermal conductivity of 76.8 S m and 8.96W mK respectively . Combining the high electrical conductivity and the synergetic electromagnetic loss as well as multi level electromagnetic multireflection the optimal HAMS film with thickness of 0.5mm exhibits a high EMI shielding effectiveness of 43.3dB showing 98.6 increment compared to homogeneous film which can further improve to 51.4dB when increasing the thickness to 0.7mm . Simultaneously the highly concentrated and aligned graphene in alternating layers can contribute to the significant improvement in in plane thermal conductivity of HAMS films with 14.3 and 1200 increment comparing to the homogeneous film and pure PVDF respectively . Considering the outstanding performance and high efficiency stacking hot pressing preparation technique HAMS films with alternating aligned graphene Ni nanochain layers present a huge potential in practical large scale application as advanced EMI protection and thermal management materials . | Flexible HAMS films with alternant graphene and Ni chains were designed firstly. High effective electrons and phonons conductive paths were formed in HAMS films. HAMS films reveal remarkable EMI shielding and thermal conductivity simultaneously. Stacking hot pressing for preparing HAMS films is easy to large scale application. |
S1385894720312031 | Coatings that are transparent wear resistant flexible and anti smudge may be used on foldable touchscreens for example . However there have been only few reports on such coatings . This paper reports such a coating . The coating is prepared from the thermal curing of cycloaliphatic epoxy functionalized oligosiloxanes with PEMA | An inexpensive and easy coating fabrication process was developed by thermal curing of CEOS with PEMA. PDMS. The transparent and omniphobic coating exhibits superior flexibility. The coating possesses the highest pencil hardness of 9H. |
S1385894720312043 | Gas adsorption behavior in shale kerogen may not be fully described using the Simplified Local Density model with a slit shaped pore . In this study an extension of the SLD model is proposed to characterize the adsorption isotherm and density profile in shale nanopores with a circular pore geometry . Such an extension enables the pore structure associated with the SLD model to be comparable with the cylindrical micro and mesopores in shale kerogen . To examine the accuracy and reliability of the extended SLD model adsorption isotherms and density profiles of methane and carbon dioxide in single walled carbon nanotubes calculated by the extended SLD model were compared with the corresponding quantities determined via the grand canonical Monte Carlo simulations . In addition the extended SLD model was used to evaluate the measured adsorption of methane on the Marcellus shale core sample to demonstrate its practicability . The results of this study indicate that the adsorption isotherm and density profile calculated by the extended SLD model are in reasonably good agreement with those determined via the GCMC simulation . Moreover the extended SLD model can properly characterize the measured adsorption isotherm of methane on shale . These findings illustrate that the extended SLD model is a robust engineering model which is capable of predicting the adsorption isotherm and density profile in cylindrical nanopores . More significantly the extended SLD model serves as a link to convey the microscopic details from the GCMC simulations to the interpretation of experimental measurements through rapid computations . | Propose a new SLD model with cylindrical pore structure. Develop functions to express attractive parameter in cylindrical nanopore. Predict adsorption isotherm and density profile in cylindrical nanopores. Attain agreement for density profiles between extend SLD model and GCMC simulation. |
S1385894720312055 | Heterostructure construction has been regarded as a feasible pathway for nanomaterial fabrication towards optimized properties . Despite impressive investigations on heterostructure fabrication assembling distinct polymorphs to form heterojunction has seldom been focused on relevant aspects . In this work we demonstrated tunable localized surface plasmon resonance by Cu | Cu. S CuS polymorphs were synthesized via a simple cation triggering on SnS. The transformation were mediated by a change in redox state of SnS. anion framework. The polymorphs showed high performance in charge carrier involved photocatalysis. The reason can be attributed to the emerging charge transfer in polymorphs. The established catalyst exhibits high stability and is easy to be recycled. |
S1385894720312067 | Photon upconversion of perovskite nanocrystals is an attractive topic and has been recently realized in colloidal solution . However this scheme suffers from system instability owing to the easy decomposition of PeNCs which will greatly limit their applications . This work reports the achievement of radiative energy transfer UC of glass stabilized CsPbX | NIR laser triggered UC emissions in glass stabilized CsPbX. perovskites are realized. The UC mechanism is radiative energy transfer from Tm KYb. to CsPbX. Tunable DS UC combined luminescence is demonstrated via tailoring halogens in glass and selecting diverse excitation modes. Visualized anti counterfeits using screen printable CsPbX. inks are practically applicable. The luminescence of anti counterfeiting patterns is well retained after storing in water for 30days. |
S1385894720312079 | Activated carbons impregnated with 1 5 and 10wt triethylenediamine and quinuclidine were prepared for the removal of methyl iodide CH | CH. I adsorption in impregnated activated carbons was studied at extremely low pressure. Contribution of chemisorption to CH. I adsorption increased with impregnant content. Adsorption rate was more affected by chemisorbed products than by impregnant type. CH. I reacted with first encounter amines leading to hindrance effect in micropore. |
S1385894720312080 | The fabricated intercalated structure composed of a Co based zeolitic imidazolate framework and expanded graphite has been prepared using a facile and simple one pot hydrothermal reaction . This framework was used to detect heavy metal ions via a square wave anodic stripping voltammetry method for the first time . Here the composite material is useful for the selective electrochemical detection of nanomolar Cd | Controllable synthesized and characterized an intercalated ZIF 67 EG as HMI sensor. Ultratrace detection of Cd. Pb. Cu. and Hg. by reliable SWASV method. ZIF 67 EG sensor exhibits high sensitivity and low detection limit. ZIF 67 EG sensor enables detect HMIs simultaneously or selectively. Effective cationic MOF sensor for environmental fields. |
S1385894720312109 | Potassium ion batteries have been regarded as a promising alternative to lithium ion batteries due to their low cost and decent operational voltage . Layer structured cobalt oxides are attractive as cathodes for PIBs but suffer from poor rate performance and unsatisfied cycling stability . Here K | CoO. porous nanoframe is designed as a promising cathode for PIBs. The partial substitution of O with N atoms enlarges the interlayer spacing. The K. CoO. full cell displays excellent K. storage. |
S1385894720312134 | Aqueous rechargeable zinc manganese dioxide batteries have attracted extensive attention due to their high energy density low cost and environmental friendliness . However the crystalline MnO | Amorphous MnO. nanospheres with abundant structural defects have been synthesized. The A MnO. exhibits high capacity and long cycle life relative to the crystalline counterparts. The significant pseudocapacitive contribution of A MnO. facilitates the reaction kinetics. A two step H. and Zn. insertion reaction mechanism for amorphous A MnO. has been demonstrated. |
S1385894720312158 | The effect of flow regimes on the reaction yield of a chemical reaction occurring in a T shaped micro reactor is investigated both experimentally and numerically by spanning different Reynolds and Damkhler numbers . The experimental set up is arranged in order to get in line information on both fluid dynamics and reaction progress along the mixing channel . Numerical simulations are performed using mesh adaption cycles to well resolve the mixing between reactants in this manner the agreement between experiments and numerical simulations is very satisfactory . For the considered reaction involving two reagents different from water despite flow regimes are coherent with the ones observed in case of water mixing significant differences arise because stratification occurs due to the different density of the fluid streams . | Experimental and numerical investigation of a chemical reaction in a T junction. Quantification of reaction yield vs. Reynolds and Damkhler numbers. Decrease of reaction yield with Reynolds number in the segregated regime. Increase of reaction yield with Reynolds number in vortex and segregated regimes. |
S138589472031216X | Purification of water contaminated with organics has recently attracted much attention . In this study the adsorptive removal of bisphenol S from water was studied by using a metal organic framework MIL 101 with or without NH | MOFs were firstly applied to remove bisphenol S BPS from water via adsorption. A MOF MIL 101 NH. showed the highest adsorption among all reported adsorbents. Recyclable MIL 101 NH. showed 3.7 times BPS adsorption that of activated carbon. Amino group on MIL 101 increased adsorption much because of favorable interactions. The remarkable adsorption was due to H bonding especially with 6 membered ring. |
S1385894720312171 | For the first time palladium supported on hydroxyapatite was synthesized by integrating ion exchange method and single mode microwave technology . The effect of ion exchange time on the methane CH | A strategy was developed to prepare Pd loaded hydroxyapatite HAP as catalyst for low temperature methane combustion. The Pd HAP 5 catalyst exhibited excellent H. O and CO. tolerance. Plausible mechanistic steps were proposed. |
S1385894720312183 | An organohalloysite was prepared using a new procedure . Halloysite was pre intercalated with dimethyl sulfoxide and then mixed with a solution of hexadecyltrimethylammonium having a concentration equivalent to six times the CEC of the starting Algerian halloysite . The novel nanohybrid obtained was characterized and compared with a sample intercalated from the beginning by HDTMA . Intercalation of HDTMA cations in the interlayer space was evidenced by XRD with an expansion of the basal distance from 7.6 to 26.0 for an intercalation rate of 75 versus 42 for HH6 . All materials were used to remove diclofenac . pH influence isotherm thermodynamic data reusability of the best adsorbent and the mechanism of interaction have been examined . The experimental isotherms were appropriately adjusted by the Redlich Peterson equation . The best adsorbent adsorbs 154.3mgg | Halloysite was intercalated with HDTMA via a novel procedure. An expansion of basal distance occurred with 26.0 for intercalation rate of 75 . The resulting nanohybrids were used as diclofenac DFC adsorbents. The aim is to understand the interaction mechanism for effective use in depollution. The mechanism would involve a hydrophobic bond and electrostatic interaction. |
S1385894720312201 | Confining and controlling the growth of discharge products through favorable nanostructures of the solid catalysts to realize the formation of nanoscale Li | Defect rich holey 2D Co. nanosheets H 2D Co. were synthesized. Numerous in plane holes and sulfur vacancies in H 2D Co. were demonstrated. H 2D Co. could induce the growth of discrete nanoscale Li. during discharge. H 2D Co. cathode exhibits a high capacity and good reversibility. |
S1385894720312213 | Two dimensional graphitic carbon nitride nanosheets as novel types of emerging materials have aroused considerable research enthusiasm in recent years . Herein we describe for the first time a new application of 2D CNNs as an ideal scaffold for synthesizing AgPd 2D CNNs through a facile one step reduction method and further utilized it as catalysts toward photocatalytic hydrogen generation from FA under visible light . Benefiting from plasmonic and Mott Schottky alloying effects as well as the unique 2D nanosheets structure with a high surface area the resultant Ag | AgPd loaded on 2D CNNs were fabricated. one step reduction method. AgPd 2D CNNs displays an excellent photocatalytic dehydrogenation performance. Mott Schottky alloying plasmonic effects and surface area enhance the activity. DFT calculation revealed the weakened adsorption of hydrogen atoms on AgPd sites. |
S1385894720312225 | Mechanically durable superhydrophobic coatings have enormous application potential in almost all aspects of our daily lives . In this study we present a practical strategy for one step fabrication of robust superhydrophobic coatings based on evaporation driven self assembly of hydrophobic nanoparticles and wax into hierarchical structures . Depending on the solvent and coating distance spray coating a dispersion composed of alkyl silane functionalized nanoparticles and wax results in extremely water repellent surfaces with a water contact angle of 175 and a sliding angle of 3 . The formation of hierarchically structured surfaces upon evaporation of the solvent enables fabrication of fluorine free highly water repellent surfaces and provides high level of structural protection against mechanical abrasion . The coating retains its superhydrophobicity even after 1000 cycles of water spray impact 45min of water jet impact and 180cm of linear abrasion . The low cost scalable one step and fluorine free fabrication of superhydrophobic coatings that can be applied onto virtually any type of material surface with a satisfactory mechanical robustness based on eco friendly and industrially available materials presents promising avenues for practical applications . | One step fabrication of robust superhydrophobic coatings. Evaporation driven self assembly of cantaloupe like hierarchical structures. Interesting effect of spray coating distance on the mechanical durability of the coatings. |
S1385894720312237 | Mechanically durable superhydrophobic surfaces on cotton fabrics were fabricated by binding polystyrene nanoparticles onto fibers with aluminum phosphate followed by coating with polydimethylsiloxane as low surface energy substance . Decoration of nanoparticles roughened the fabric surface and coating with AP made stable the roughening structures . The as prepared fabric surfaces not only showed excellent stability to acid alkali salt organic solvent and UV irradiation but also could maintain their superhydrophobicity after abrasion of 2000 or laundering of 35 cycles . The combination of inorganic adhesives AP and organic PDMS greatly enhanced the mechanical stability of the superhydrophobicty of the cotton substrate . Meanwhile the obtained superhydrophobic fabrics showed excellent self cleaning property . | Mechanically durable superhydrophobic surface was fabricated on cotton fabrics. Binding of polystyene nanoparticles on fibers with aluminum phosphate roughened and strengthened the fabric surface. Synergistic effect of inorganic and organic adhesives improved the mechanical stability of the superhydrophobicity. |
S1385894720312249 | The development of cell instructive scaffolds which provide biochemical cues to direct endogenous bone marrow derived mesenchymal stem cells behavior has the potential to revolutionize osteochondral tissue engineering . However scaffold material itself is generally lacking the inductive signals . Here a novel peptide functionalized scaffold was prepared by prime coating Ca alginate scaffold with tannic acid followed by conjugation of E7 P15 peptides . The system leveraged TA as a reactive intermediate between Ca alginate and peptides due to the multiple functional groups of TA . These interactions induced by TA prime coating contributed to enhanced scaffold stability and mechanical properties increased peptide conjugation and sustained release of peptides without affecting their bioactivity in a TA concentration dependent manner . The conjugation of E7 P15 peptides endowed the scaffold with the potential to enhance BMSCs recruitment and deposition of cartilage and bone extracellular matrix . Furthermore the prepared CA TA E7 P15 scaffold showed a promoted biological performance of simultaneous cartilage and subchondral bone regeneration in rabbit osteochondral defect model . These findings indicate that TA is an effective surface modification intermediate and crosslinking aid and that the CA TA E7 P15 scaffold developed in this study serves as a promising cell instructive scaffold for osteochondral regeneration . | A TA mediated E7 P15 peptide functionalized Ca alginate scaffold was prepared. TA prime coating improved scaffold stability and mechanical properties. TA prime coating enhanced peptide conjugation and sustained peptide release. The scaffold induced BMSC recruitment and bi lineage differentiation by E7 and P15. The scaffold simultaneously enhanced cartilage and subchondral bone regeneration. |
S1385894720312250 | With increasing global food demand the production and protection of agricultural crops in safe and secure fashion has become a critical issue . Herein we report a novel type of nanopesticide based on avermectin and composite nanocarriers made from the functionalization boron nitride nanoplatelets with 3 mercaptopropyl trimethoxysilane and poly diacrylate . Such nanocarriers exhibit a high pesticide loading capacity due to their layered nanostructure and their favorable interactions with AVM molecules achieved through hydrophobic effect stacking and electrostatic interactions . By changing pH from 7 to 11 the release kinetics could be transformed to a zero order process from a first order process with about a two to three fold increase in the release rate . The pH responsive behavior was ascribed to hydrolysis of ester groups of PEG under alkaline conditions . These pesticide nanocarriers reduced the degradation rate of AVM against UV irradiation about 30 . In summary novel nanopesticides based on BN composite nanocarriers opens new avenues for the delivery of hydrophobic pesticides in the field of agriculture and crop protection . | BNNP PEG MPTMS nanocomposites are prepared via condensation and Michael addition reaction. Such nanocomposites are applied as a promising long term stable aqueous nano carrier for pesticides. Nanoconfinement effect and carrier facilitated features of 2D nanocarrier offer a pH responsive pesticide delivery strategy. |
S1385894720312262 | In this work a high performance photocatalyst by integrating iodine vacancy of bismuth oxyiodide was designed having rich iodine vacancy and superior photocatalytic activity . Specifically the mechanisms for the formation of iodine vacancy and reaction process were investigated . Further a novel iodine vacancy flower like BiOI | The flower like BiOI. photocatalyst was synthesized to delay recombination of electron hole pairs. The iodine vacancy BiOI. photocatalyst exhibits better performance compared to pristine BiOI. Possible photo induced charges transfer mechanism and photocatalytic reaction mechanism were proposed. |
S1385894720312274 | Anaerobic co digestion of fats oils and grease with municipal wastewater sludge offers the opportunity to increase methane yields yet the impact of FOG on overall process dynamics and the associated microbial communities is not well understood . This study employed lab scale batch anaerobic co digestion assays to advance the understanding of the co digestion process through studying the dynamics of formation and consumption of intermediates along the anaerobic digestion pathway and correlating these to temporal analysis of methanogenic activity as well as end point microbial community structure . Methane production was delayed during sludge co digestion with FOG but not during digestion of sludge alone . Palmitic acid a long chain fatty acid accumulated during co digestion to concentrations above 16mM resulting in a lag in methane production . Acetate hydrogen and formate carbon and or energy sources for methanogens during methane production did not accumulate during the lag phase . Expression of the | Palmitic acid accumulated to limit CH. production during co digestion. Methanogens maintained activity up to 16mM palmitic acid accumulation. Distinct microbial communities observed between control and co digestion assays. dominated functioning FOG co digestion archaeal communities. was enriched in functioning FOG co digestion assays. |
S1385894720312286 | We present an experimental study dealing with the transfer of the enzyme synthesis of cephalexin from a batch arrangement to a continuous flow microfluidic system with integrated reaction product separation and enzyme recovery . Cephalexin is synthesized by penicillin acylase in a kinetic regime that is characterized by the appearance of a concentration maximum during the enzyme reaction . We determine proper reaction conditions providing a high cephalexin yield and relatively short reaction time by performing a set of batch experiments . Once the residence reaction time was found the reaction process is transferred into a continuous mode . We employ an aqueous two phase system forming two phase slug flow in a microfluidic capillary as the reaction separation environment . Such a flow arrangement guarantees a uniform residence time of the reaction mixture in the reaction microcapillary and it provides | Cephalexin is enzymatically synthetized in a continuous flow microreactor. An aqueous two phase system is used for. extraction of cephalexin. Free penicillin acylase is recycled and highly utilized. Microdialysis is used to remove a side product phenylglycine. System operates continuously at least for 5h. |
S1385894720312298 | Achieving superior electrocatalytic activity and thermal chemical stability of cathode materials is the key to high performance and durable solid oxide fuel cells . Here we present a barium and praseodymium co substituted perovskite Bi | A novel perovskite cathode Bi. Pr. Ba. FeO. BPBF was well developed. The composite BPBF based cathode exhibits favorable ORR activity with low polarization ASR values. Excellent thermal chemical stability is achieved in both pure air and 1vol CO. containing air. The intrinsic high acidity of Bi. and co substitution of Ba Pr enable stable high electrocatalytic activity. |
S1385894720312304 | Fenton reaction has been widely applied as a unique oxidative method in the treatment of industrial wastewater . However it generates a massive amount of Fe sludge which mostly contains other hazardous heavy metal waste that can harm the environment and humans . In this study we proposed a sustainable method to eliminate the side effect of the Fenton reaction and turn the Fenton sludge containing Cu into an efficient catalyst in the activation of peroxymonosulfate to degrade tetracycline . The existence of Cu which can increase the oxygen vacancies of the sludge is attributed to the activation efficiency compared with Fe sludge devoid of Cu . X ray diffraction and X ray photoelectron spectroscopy results show that Fe is present in the form of Fe | The recycled Fenton sludge showed a high activity for the activation of persulfate. The existence of Cu II can increase the oxygen vacancies of the recycled sludge. Tetracycline can be decomposed through six possible pathway processes. The catalytic mechanism by the recycled catalyst is deciphered. It is a cost effective and environmentally friendly way to gain active catalysts. |
S1385894720312316 | Immunotherapy has been a promising candidate for cancer treatment . The combination of photothermal therapy and immunotherapy have shown to cause tumor ablation and induce host immune response . However this strategy is often hampered by a limited immune response and undesirable immunosuppression . In this work we developed an immunologically modified nanoplatform using ovalbumin coated PEGylated MnFe | Immunologically modified MnFe. NPs were constructed for combined PTT and immunotherapy. The MnFe. NPs elicited strong immune responses. and. The MnFe. NPs based PTT effectively inhibited tumor growth and lung metastases. The feasible mechanism for combined PTT and immunotherapy was clearly described. The MnFe. NPs showed as a desirable MR contrast agent for tumor imaging. |
S1385894720312328 | Prevention of infection and promotion of osteoconduction are the key factors to achieve long term success in orthopaedic implants . In this work an effective antimicrobial and osteoconductive coating is facilely prepared by the cross linking of poly L lysine and catechol via a one step mussel inspired chemistry . A series of EPLC paints were prepared by catechol and varying concentrations of EPL and named as EPLC1 EPLC2 and EPLC3 . The coatings were easy to paint on implants . EPLC3 with the highest EPL concentration exhibited the most potent antimicrobial activity against both Gram negative bacteria | Dual functional coating was prepared via a one step mussel inspired chemistry. This non leachable coating effectively killed drug resistant bacteria on contact. Pre osteoblast proliferation and hydroxyapatite formation on it were promoted. |
S138589472031233X | Biomaterials that could synchronize with complex tissue physiological healing processes would have significant potential in bioengineering applications . Inspired by the scatter shot pattern in the embryonal intramembranous ossification process a multifunctionalized scaffold is proposed to provide multiple osteogenic nucleation sites for bone regeneration multicellular unit . First an inherently therapeutic nanoplatform was fabricated that is composed of a gallic acid magnesium based metal organic frameworks core and a biodegradable calcium phosphate shell . The obtained | Bone regeneration is the synergistic effect of bone regeneration multicellular unit. Bone regeneration incorporates osteoblast endothelial cells and inflammatory cells. Application of certain biochemical cues could optimize the repair microenvironment. nanosystem can optimize the microenvironment for bone regeneration. Effects of. on the bone regeneration multicellular unit are elucidated. |
S1385894720312341 | 4D printing as a booming additive manufacturing technology of smart material provides a new opportunity for the development of shape memory polymers . Meanwhile the diversity of SMPs structure calls for flexible and well adapted printing technology . Fused deposition modelling is one of the most versatile and cost effective methods owing to the simplicity of the technique and broad compatibility with a wide variety of materials but it fails to deal with the fabrication of shape memory networks that possess excellent structural stability as well as shape memory effect . Aiming to personalized or patient adaptable treatment devices in this work we demonstrate a UV assisted FDM 4D printing strategy to fabricate elbow protector models based on shape memory copolyester networks . First the linear unsaturated copolyesters were synthesized amongst poly was chosen as hard segment providing the material a good mechanical performance and printability the poly with strong crystallizability was employed as switching segment and a functional coupling agent contained double bonds was used to join the two segments and as the same time . This copolyester can be easily processed into filament and the | Embedding double bond in the linear PLA PCL copolyesters aim to crosslinking. Using UV assisted FDM printing strategy to fabricate shape memory architecture. Development of elbow protectors for personalized and patient adaptable treatment. |
S1385894720312365 | The design of robust metallic transition metal dichalcogenides based materials for photocatalytic water splitting is desirable but challenging . Here we report the exploration and crystal phase engineering of metallic CoSe | Crystal phase dependent hydrogen evolution performance of CoSe. is demonstrated. The origin for crystal phase dependent performance is discussed. The advance of using modern theoretical tools for the design catalysts is highlighted. |
S1385894720312377 | Recently metal doped organic inorganic hybrid nanomaterials have attracted substantial attention for their high catalytic activity in the electrochemical oxygen evolution reaction . Here we report three novel porous metal phosphonates cobalt phosphonate nickel phosphonate and nickel cobalt phosphonate using iminodi as an organophosphorous precursor | Newly designed microporous metal phosphonates such as NiPIm CoPIm and NiCoPIm. Hydrothermal non templated synthetic pathway by using iminodi methylphosphonic acid as an organophosphorous precursor. Cobalt phosphonate CoPIm material exhibited excellent electrocatalytic behavior. Overpotential and Tafel slope of CoPIm are 334mV and 58.6mVdec. respectively. CoPIm reveals the excellent stability up to 25h. |
S1385894720312389 | Metal organic frameworks have been widely used for drug delivery systems due to their high drug loading content and easy modification . But it remains the biggest challenge to exploring biocompatible MOFs with uniform small sizes and well defined surface chemistry for tumor therapy . Especially the hollow structured MIL 125 Titanium nano MOFs have not been prepared for drug carriers . Therefore we studied a facile approach to synthesize hollow structured Ti based nano MOF via surfactant coordination modulation . The as prepared nanomaterials exhibited uniform size of 200nm and large BET surface area of 1134m | A facile approach to synthesize biocompatible hollow structured MIL 125 Ti nano MOFs. The optimal MIL 125 Ti HA nanoparticles were synthesized for delivery of doxorubicin. The NPs had high DOX loading contents with pH sensitive release. The NPs could escape from lysosomes to improve intracellular drug accumulation. |
S1385894720312390 | The electronic and sensing properties of pristine and defect tuned black phosphorus monolayer for the monitoring of nitric oxide and carbon monoxide at two defect concentrations 0.0165 and 0.0073 | Unequivocal role of defects in black phosphorene BP for NO and CO detection. Computing all plausible structures at two concentrations 0.0165 and 0.0073. Detection sensitivity correlated well with the predicted electrophilicity. A perfect phosphorene layer cannot be a reliable conductance based chemosensor. Defective BP is highly selective 193 sensitive 270 and reusable 3.6ms . |
S1385894720312407 | Severe membrane fouling caused by iron and manganese limited the intensive application of ultrafiltration technologies . In the present study an innovative biofilm based UF process gravity driven membrane filtration was employed to evaluate its possibility to directly treat manganese contaminated surface water at high concentration . Surprisingly an extremely short and stable ripening period of iron and manganese removal was achieved in GDM filtration with average removals of 90 and 58 respectively attributing to the effective rejection of active catalytic manganese oxides and fast colonization of iron and manganese oxidizing bacteria e.g | Flux stabilization of GDM process occurred under high Mn pollution. An extremely short ripening period 10days of Mn removal was achieved. Fe and Mn were efficiently removed by 90 and 50 in GDM process. A highly porous biofilm formed on the membrane surface under Mn pollution. Pre coating manganese oxides could improve the stable flux and Mn removal. |
S1385894720312420 | Multi functional integrated materials used in extreme environments are gaining increased interest . In this study a binary porous SiC was fabricated by in situ synthesis in a SiC skeleton . The binary porous SiC exhibited unique features of synergistic effects of high temperature electromagnetic wave absorption mechanical and thermal insulation properties . The chemical composition evolution was characterized by transmission electron microscopy and Raman spectroscopy . Electronic structures were investigated by X ray absorption near edge structure at the C K edge . Based on a vaporsolidliquid growth mechanism a decrease in the vacancy defects and unoccupied C density of states was manifested in the binary porous SiC . Introducing the second SiC phase resulted in sharply enhanced EM wave absorption performance . The minimum reflection loss was as low as 51dB and the effective absorption bandwidth at 600C was 3.2GHz with a thickness of 2.4mm . Meanwhile the in situ grown second SiC phase substantially increased the compressive strength to 34.25MPa which was nearly 15 fold that of the porous SiC . Moreover the binary SiC showed a low thermal conductivity of 0.1572W mK . All these results indicated that the binary porous SiC system was ideal for EM wave absorption applications at extremely high temperatures . | Binary porous SiC has been synthesized by in situ synthesis method. The second SiC phase has bead like structure grown under the VSL mechanism. Binary SiC exhibits superior high temperature EM wave absorption properties. The effects of structure on the enhanced performance are thoroughly revealed. |
S1385894720312432 | Currently phosphor materials play an important role in designing noncontact remote optical thermometers . Although many approaches have contributed to improve thermometric performance of optical thermometers including optimization of host materials size of nanoparticles dopant type and concentration as well as excitation density and phonon energy engineering the development of highly sensitive optical thermometric materials is still a challenge . Hence we developed novel CaNb | A novel strategy for further optimizing thermometric performance. improving indicator signal is proposed. The high S. and S. reached 0.122K. at 523K and 3.793 K. at 298K respectively. An obvious discoloration was discovered during the temperature cycle testing under a 254nm UV lamp. |
S1385894720312444 | Wastewater treatment plant is the point source of antibiotic contamination yet the removal of antibiotics from WWTP effluent has not been given necessary attention . In this study subsurface constructed wetlands were used to investigate the removal distribution and biotransformation of sulfonamides and their N | SCWs can efficiently remove SAs and their Ac SAs from WWTP effluent. SAs and Ac SAs can transform into each other and affect their removal in the SCWs. Microbial aerobic degradation is the major removal pathway of SAs in the SCWs. VF SCWs owning high oxygen transport capacity may promote aerobic process of SAs. Plants play a crucial role on temporal spatial change of SAs by rhizosphere effect. |
S1385894720312468 | Lithium metal anode is strongly considered as the Holy Grail anode for the next generation energy storage system . However the major obstacle towards lithium metal batteries is the unstable solid electrolyte interface because of its high reactivity which can result in dendrite growth dead lithium accumulation and even short circuit . Herein the highly ion conductive stretchable and stable artificial SEI layer derived from Polymethyl methacrylate Poly hybrid polymer is fabricated through an in situ reaction during the preparation and electrochemical process . In this way LiF and Li O bond would be generated in the interface of the PMMA PVDF layer and lithium metal which can provide fast ion transport channels during lithium stripping and plating process . Furthermore the robust and flexible polymer coating can simultaneously adapt the volume change and suppress dendrite growth . Therefore based on the synergistic effect between PMMA and PVDF the PMMA PVDF Li delivers ultrahigh cycling stability at 2mAcm | The gradually generated Li. O and Li. F bonds greatly increase the ion conductivity. The robust and flexible SEI film can suppress the dendrite growth and buffer the volume change. The PMMA PVDF Li can achieve high stability for 2200h at a current density of 2mAcm |
S1385894720312481 | Despite confined nanospace is known as corresponding to fast hydrate kinetics hydrate nucleation and growth mechanisms behind the promotion effect have not been thoroughly understood . Here we estimated hydrate nucleation and growth kinetics in confined porespace and proposed a new adsorption induced two way nanoconvection mechanism which may constitute the essence of the confinement effect . Hydrate formation kinetics loaded by activated carbon suggest a discrete two stage adsorption that attributes to methane physical adsorption and hydrate formation respectively and the promotion of methane physical adsorption on hydrate nucleation in inner pores was first presented . Impressively the two way convection at molecular scale gives rise to hydrate fibers which grow out from inner pores and significantly depend on the contents of pre adsorbed water and this finding inversely confirms the nanoconvection mechanism . This work provides a novel perspective on improving the understanding of hydrate nucleation and growth kinetics in confined porespace and sheds light on the application of AC based methane storage . | An adsorption induction period of methane in PW AC was first observed. Adsorption induces two way migration of methane and water molecules in porespace. Adsorption induced nanoconvection enhances nucleation kinetics of methane hydrates. Hydrate chunks and fibers grow out from interstitial and inner pores respectively. The nanoconvection mechanism may constitute the nature of confinement effect. |
S1385894720312493 | An artificial intelligence enhanced optimization framework is developed to reduce computational costs for evaluating transport performance of buoyancy driven heat and mass transfer in porous structures . The present optimization framework integrates prediction with artificial neural networks optimization with the weighted objective function and physics based simulations with high performance computing . Multi dimensional governing parameters and objectives are investigated by ANNs with sparse scattered training data obtained from HPC with controllable structure generation scheme and parallel non dimensional lattice Boltzmann method . The macroscopic prediction results based on ANNs are validated by comparison with HPC results . Full maps of the objective function values versus structure and physical parameters are illustrated . The maximum objective function value subjected to constraints is obtained together with the corresponding optimal structure and physical parameters . The optimal parameters are further applied in HPC to obtain mesoscopic physical fields . The underlying mechanism is also revealed by comparing the physical fields with optimal and off optimal parameters . | A framework is built for optimization of buoyancy driven transport in porous structures. Predicted results are compared with theoretical and physical simulation data. Full maps of the weighted objective function are illustrated. Physical fields are compared for both optimal and off optimal parameters. |
S1385894720312511 | Transition metal oxides with earth abundance and high theoretical capacity have received ever growing interests as promising cathode materials for aqueous zinc ion batteries . However their semiconducting nature and poor conductivity lead to the kinetically sluggish rate and poor electrochemical reversibility . Herein a novel defect rich oxide nanowire filled graphene scrolls is introduced as a high performance cathode for ZIBs . The 1D ultrathin oxide nanowires with defective nature are enwrapped in the center of the graphene scrolls forming the core shell coaxial scrolls . Benefitting from the highly conductive graphene network and 1D structured oxide with defect rich structure the DNGS hybrid scrolls achieve fast electron ion transport high electrochemical reversibility and superior energy storage capability . For the first time the defect rich vanadate oxide V | Defective oxide. scroll DNGS is a novel cathode material. Fast kinetics and excellent reversibility are demonstrated for DNGS cathode. DNGS boosts high rate capability the cycling durability and energy density. Formation mechanism based on oriented growth and self rolling is disclosed. |
S1385894720312535 | In this study a velocity field model around a Taylor bubble is established after the analysis of the disturbed region around the bubble . The model combines the continuity and yield stress fluid constitutive equations . Based on this velocity field model an energy dissipation model for the work accomplished by each resistance of bubbles is proposed . In addition based on an analysis of energy conservation a new model for predicting the velocity of a Taylor bubble in a yield stress fluid is presented . The experiments of Taylor bubble through Carbopol solution migration in 50 and 60mm diameter tubes were carried out . Results show that the yield stress has considerable influence on the rise speed of the bubble improving the anti disturbance ability of the fluid and further stabilizing the tail of the bubble . Combined with experimental data the bubble velocity prediction model is verified and the error value of the calculation result is found to be less than 6 . An energy analysis of the Taylor bubble rising process shows that the volume of the bubble increases the proportion of work done by inertial force and surface tension decreases and that done by viscosity force and yield stress increases . The work done by surface tension has little effect on the rise speed of bubbles which can be ignored . The Taylor bubble velocity changes slightly with the volume as the bubble volume increases and the buoyancy work is consumed by the viscous and inertial forces in the film region . | A new model for predicting Taylor bubble rise velocity was established. The models of velocity field in different regions around bubbles were established. Based on the velocity field model an energy conservation method was proposed. Contribution of each force to the rising velocity of bubbles was clarified. Compared with the experimental results the error of the model was less than 6 . |
S1385894720312547 | Modeling of microwave heating of multiphase systems requires resolving the electromagnetic field from the single particle to the entire cavity . We introduce a multiscale methodology for computationally affordable simulations of microwave heating of multiphase systems consisting of one phase dispersed in a continuum phase . The methodology homogenizes the original multiphase system by taking advantage of the large separation of length scales to calculate the effective permittivity effective thermal conductivity and volumetric power absorbed in each phase . The methodology is rigorously assessed against particle resolved detailed numerical simulations of model systems . We demonstrate a significant reduction in computational cost while retaining the accuracy of detailed simulations . The present methodology enables high throughput exploration of novel multiphase system designs utilizing microwave heating . | Development of a novel multiscale methodology for microwave heating of multiphase systems. Verification of the methodology against detailed particle resolved simulations. Application of the methodology in optimizing the structure of multiphase systems. Significant reduction in the requirement of mesh elements and compute time. |
S1385894720312559 | A promising and practicable catalyst is the key challenge for industrial perspective to promote photocatalytic nitrogen fixation . In this study a new 0D 2D heterojunction oxygen vacancy induced In | OV induced In OH. carbon nitride heterojunction was firstly synthesized. The heterojunction was prepared by a facile and readily method at moderate condition. The heterojunction showed excellent NH. generation rate to be 3.81mM h per 1g. The trap effect of OVs on In OH. accounts for enhancement of photocatalytic activity. |
S1385894720312572 | High latent heat no leakage and recyclable are the comprehensive properties of phase change materials . In this study which was inspired by the structures of orange and pomegranate a facile strategy via a self template method was adopted to prepare form stable phase change materials for the first time . Utilising poly spherulite crystals as templates the cross linked polymer was prepared as a supporting material by in situ polyaddition . The bionic vesicle structure microstructures were investigated by parallel optical stereo microscope and scanning electron microscope . The results suggest that a vesicle like structure is formed in the prepared PEG CPA FSPCMs . Compared with the FSPCMs prepared by interpenetrating cross linked network method the FSPCMs prepared by self template method has higher PEG loading value . Especially when PEG 20K with a larger spherulite diameter was used as a template to prepare PEG 20K CPA FSPCMs the loading value was as high as 900 . Moreover in a process attributed to the regeneration of various types of hydrogen bonds ionic bonds and transesterification the recyclable CPA enables the PEG 20K CPA FSPCMs to possess good thermally reversible reusability . | A facile strategy via a self template method was adopted to prepare FSPCMs. The PEG 20K loading value is as high as 900 by the self template method. The phase change enthalpies of the FSPCMs can reach 188.8J g. The FSPCMs maintains a good thermally reversible reusability. The FSPCMs possess good thermal stability and multiple cycle stability. |
S1385894720312584 | Gas injection as a method for natural gas hydrate exploitation has attracted much attention because of its advantages of low energy consumption and non destructive characteristics . The gas recovery can be significantly enhanced by adding small molecule gases such as N | H. did not enter the CH. hydrate cages and participate in the hydrate formation. The addition of small molecule gases made the CH. hydrate become more unstable. has a more significant effect on the decomposition of CH. hydrate than N. There exists larger diffusion coefficient of H. in hydrate phase than that of N |
S1385894720312596 | Ultrathin 2D carbon nitride sheets are potential materials for solar energy conversion . However these ultrathin sheets usually suffer from a wider bandgap of 3.06eV and thus nothing but ultraviolet range absorption . Here we realized that red CNs has a narrower bandgap of 2.05eV with a strong band to band visible light absorption band by fluorination of atomic CNs followed by thermal defluorination . Theoretical calculation results indicate that a defect band arises near the conduction band minimum after F DF resulting in a downward shift of the CBM and the band structures are highly associated with the spatial distribution of defects in ultrathin 2D CNs . Furthermore we confirm that such visible light absorption band of red CNs can enable the number of photons to harvest a larger portion of solar spectrum and suppress the rapid recombination of the photogenerated carriers . Consequently the red CNs sensitized TiO | Ultrathin red 2D CNs with a bandgap of 2.05eV is realized. The red 2D CNs can effectively increase a number of photons. IPCE activity of red CNs TiO. photoanode significantly exceeds that of TiO. photoanode. |
S1385894720312626 | In this work in addition to the presence of cool white luminescence under ultraviolet illumination after removing illumination transitory phosphorescence was observed in pure tin fluorophosphate glass prepared by traditional melting methods . By dynamic spectroscopy analysis its novel coexistence of fluorescence and phosphorescence phenomenon was attributed to the double relaxation behavior of T | The coexistence of fluorescence and phosphorescence was found in the tin fluorophosphate glass. The energy transfer model demonstrates the mechanism of double relaxation emissions of T. in Sn. The glass shows the effective photoelectric response and luminous efficiency properties. |
S138589472031264X | Developing convenient and rapid method for eliminating uranium from massive contaminated water under emergency conditions is highly needed . Herein we developed a novel chemical precipitation strategy based on graphene aerogel capsulated with the degradation products of phytic acid . With hydrothermal treatment graphene oxide was twisted and reduced to generate aerogel acting as an encapsulator . At the same time phytic acid was degraded into various compounds and capsulated into graphene aerogel with a high loading capacity of 85g g. After adding PAGA into uranium contaminated water the degradation products were released out of GA skeleton to combined with uranium and form sediments . The elimination capacity reached up to 3550mg g within 40min and the obtained sediments possessed good stability in the following 72h . PAGA capsule also presented high removal rate in various water systems making it a kind of versatile material in the elimination of uranium under emergency conditions . | Designed a novel graphene aerogel capsulated with degraded products of phytic acid. The loading capacity of degraded products in graphene aerogel was higher than 85g g. The degraded products released out to form crystals with uranium in solutions. The uranium elimination capacity could reach up to 3550mg g within 40min. The material presented high removal rate in different water systems. |
S1385894720312651 | In this study purification of a benzene lean gas stream over unimodal and bimodal silica based mixed metal oxides was investigated for the purpose of understanding the effects of secondary metal oxide and support pore structure on the adsorption capacities and kinetics . The unimodal silica fell in the borderline of micropores and mesopores i.e . they consisted of large micropores and small mesopores with large surface area while the bimodal silica consisted of large micropores small mesopores and large mesopores with large mesopore volume . The titania and zirconia mixed metal oxides showed reduced surface area and pore volume as a result of partial blockage of the pores however they exhibited improved adsorption behavior relative to the bare silica . Equilibrium adsorption measurements revealed unimodal adsorbents are superior to their bimodal analogues by exhibiting higher benzene vapor uptake with capacities reaching 10.05 11.71 and 11.25mmol g for SiO | Synthesis of unimodal and bimodal silica based mixed metal oxide adsorbents. Higher equilibrium benzene vapor uptake for unimodal adsorbents than bimodal materials. Faster adsorption kinetics for bimodal adsorbents relative to unimodal materials. Titania doped adsorbents showed higher adsorption capacities over zirconia doped analogous. |
S1385894720312687 | High performance solution processable host materials for thermally activated delayed fluorescence emitters are of great significance to the development of organic light emitting diodes . In this study three solution processable hosts namely mCP Ph mCP Py and mCP BmPy featuring a basic structure paradigm of donor acceptor are reported for green TADF OLEDs . Attributing to the well designed structure the three host materials exhibited high triplet energy levels and excellent solution processability . It was found that the host materials had a significant impact on the excited state characteristics of the TADF emitter and the mCP Ph host with the lowest dipole moment showed the highest intersystem crossing rate constants | Molecular engineering by bond spacer is adopted for designing new host materials for the TADF emitter. The newly developed host materials exhibit excellent solution processability and high triplet energy levels over 2.8eV. Host material with the lowest polarity achieves the highest reverse intersystem crossing rate. Solution processed TADF devices with a maximum external quantum efficiency up to 21.6 are demonstrated. |
S1385894720312705 | Contamination of selenate an important oxyanion has been widely detected in numerous water sources because of its high water solubility and mobility . In this study a family of amine bridged periodic mesoporous organosilicas with tunable and high contents of amine functionality were prepared through a facile condensation approach for adsorptive removal of Se . The composition structure and properties of amine bridged PMOs were extensively characterized using various techniques such as scanning electron microscopy transmission electron microscopy powder X ray diffraction Fourier transform infrared spectroscopy surface area and porosity measurement thermo gravimetric analysis zeta potential measurement and elemental analysis . The optimal amine bridged PMO had a high amine loading of 4.04mmol g. The Se adsorption behaviors strongly depended on the amine content of the amine bridged PMOs . The optimal amine bridged PMO exhibited both fast Se adsorption kinetics and a high Se adsorption capacity of 175mg g because of the high amine content uniformly distributed amine functional groups within the mesoporous skeleton and large surface area . Furthermore the optimal amine bridged PMO showed robust performance for efficient removal of Se under a wide range of pH and in the presence of various common co existing anions and can be conveniently regenerated and reused for multiple cycles . Combined spectroscopic characterization and aqueous adsorption experiments suggested that the primary mechanism for Se removal may be attributed to the formation of outer sphere surface complexes between Se and the surface of amine bridged PMOs . | Amine bridged PMO nanomaterials were prepared with tunable and high amine loadings. The optimal material showed fast kinetics and high capacity for Se VI adsorption. The adsorbent was efficient in immobilizing Se VI from multi anion water system. Amine bridged PMO could be conveniently regenerated and reused. Formation of outer sphere surface complexes was the primary adsorption mechanism. |
S1385894720312717 | Transition metal phosphides have emerged as a promising catalyst in the environmental catalysis field due to the excellent catalytic property high conductivity and long stability . Herein spherical coral like iron phosphide Fe | The Fe. P PMS system was firstly presented for elimination of sulfonamides and exhibited favorable catalytic activity. The Fe. P particles presented a unique spherical coralloid morphology structure. The magnetically separable catalyst exhibited favorable reusability. OH SO. and O. contributed to the elimination of sulfonamides. |
S1385894720312729 | Recently chemodynamic therapy has become an outstanding cancer treatment because of its high specificity for tumor microenvironment . Nevertheless lower reactive oxygen species production efficiency and cellular antioxidant defense system are still the main obstacles in CDT . To this end we propose a highly efficient nanoplatform for exogenous and endogenous dual augmented mitochondrial targeted CDT based on bio reducible and bio breakable copper truncated octahedron | Stable in vitro and bio reducible in vivo of Cu II . GSH depletion photothermal dual augmented chemodynamic therapy. Excellent mitochondrial targeting and amplified the oxidative stress. possesses bio breakable capacity in vivo. |
S1385894720312730 | ZnO micro particles of narrow size distribution were successfully produced by the continuous hydrothermal synthesis of zinc nitrate in a coiled flow inverter reactor at different OH | CFI is a feasible technology for the narrowing of ZnO PSD. PSD narrowing and size increase depend on mixing intensity and Zn OH. amount. Nucleation limited process was determined to occur at lower OH. Zn. ratios. Design strategy was developed to identify conditions that favors particle growth. |
S1385894720312742 | The design of stable heteropolyacid catalysts with strong Brnsted acidity and mild Lewis acidity is crucial for the efficient conversion of renewable biomass to value added chemicals . Firstly a novel strategy was proposed to synthesize the Ce based HPA of H | Novel and facile synthesis of temperature responsive heteropolyacid catalysts. The catalysts possessed strong Brnsted acidity and appropriate Lewis acidity. The catalysts realized one pot production of 5 HMF from cellulose. The catalyst of ChH. CeW. showed inspired and competitive catalytic activity. Temperature responsive and stable property was beneficial for exceptional reusability. |
S138589472031281X | A novel CuO modified ceramic hollow fiber membrane for in situ peroxymonosulfate activation was developed and employed in surface water treatment . The performance of membrane fouling control and organic pollutants removal was systematically investigated . The results indicated that compared with pristine membrane CuO modified ceramic hollow fiber membrane significantly improved the removal of dissolved organic carbon and UV absorbance at 254nm UV | A novel CuO modified ceramic hollow fiber membrane integrated with in situ PMS activation was developed. The CuO modified membrane significantly improved the removal of DOC UV. and fluorescent compounds in surface water. The CuO modified membrane exhibited excellent antifouling property to NOM in surface water. The CuO modified membrane showed highly efficient degradation of organic pollutants in surface water. |
S1385894720312821 | As an alternative to high temperature oxidation the present study demonstrates a new approach to the intercalation of excess O into 3R delafossite CuFeO | CuFeO. has been rapidly synthesized by microwave assisted hydrothermal method. The sample has high quality as well as contains elevated concentrations of excess O. The formation mechanism is based on the non equilibrium hydrothermal synthesis. CuFeO. exhibits half metallic ferromagnetism and multiple band gaps. Non stoichiometric CuFeO. compounds have potential applications in solar energy conversion. |
S1385894720312845 | Arsenic is worldwide recognized the first class carcinogen . How to efficiently treat arsenic in alkaline mining smelting wastewater is an urgent technical problem . Here in acetate modulated yttrium based metal organic frameworks MOF 76 Ac has been exploited for investing the adsorption behavior and mechanism of arsenate in alkaline conditions . MOF 76 Ac presented smaller particle size higher porosity and larger number of coordinatively unsaturated sites and consequently exhibited significantly enhanced adsorption affinity and capacity toward arsenate compared with that of pristine MOF 76 . In the optimized operating condition the maximum Langmuir adsorption capacity of arsenate by MOF 76 Ac can be 201.46mgg | Yttrium MOFs were first applied in dearsenic from alkaline smelting wastewater. Acetate modulation obviously enhanced As V adsorption performance of MOF 76 Y . As V adsorption selectivity and reusability were confirmed. Adsorption mechanism of As V on MOF 76 Y Ac in alkaline condition was proposed. |
S1385894720312857 | Sulfur nanoparticles have been frequently used for sterilization due to their high biocompatibility and environmental friendliness . Compared with traditional sublimed sulfur SNPs have some superior properties such as the smaller particle size better dispersibility in water and even higher antibacterial performance . Therefore the objective of this study is to prepare SNPs with a controllable particle size and uniform morphology using a microfluidic anti solvent precipitation method whose process is continuous and ideal for large scale production . The SNPs with a range of 1550nm can be prepared in both a Y type microchannel and T type microchannel . Interestingly for the SNP preparation process the YMC shows a better mixing effect than TMC which has been verified by the CFD simulation . Compared with a traditional batch stirred tank these two microchannels can not only guarantee a relatively small and uniform particle size but also reduce the solvent consumption by at least 50 . More importantly the SNPs show a better continuous bactericidal ability for | Highly stable monodispersed sulfur nanoparticles with a size of 1550nm. Controllable preparation using a microfluidic anti solvent precipitation method. Efficient and continuous synthesis in both Y type and T type microchannels. CFD simulation to verify the mixing process. Modified sulfur nanoparticles with good antibacterial properties. |
S1385894720312869 | Chemodynamic therapy and photodynamic therapy mediated by reactive oxygen species hold great potential for cancer therapy . However they are still limited by rigorous reaction conditions of efficacious Fenton reaction reliance on oxygen and inherent defects of traditional common photosensitizers . Herein we reported an L Buthionine sulfoximine modified FeS | Novel BSO FeS. NPs was synthesized with enhanced chemodynamic therapeutic efficacy. BSO FeS. NPs possess photothermal enhanced. and. OH generation capability. BSO FeS. NPs repolarize the macrophages from M2 to M1 for potential immunotherapy. |
S1385894720312870 | High temperature Sodium sulfur batteries have been commercial owing to their high energy density . However their extra safety and cost issues caused by high temperature inhibits their wide application . Recently room temperature Na S batteries have attracted widespread attention due to the low cost and excellent energy density . Nevertheless they still suffer from the poor conductivity sluggish redox kinetics and shuttle effect . Herein the incorporated polar Co | C Co is fabricated and evaluated for Na S batteries at room temperature. Efficient physisorption chemisorption and electrocatalytic conversion are achieved. Superior cycle and rate performances confirm the effective NaPSs shuttling relief. |
S1385894720312882 | A novel 2D 3D hybrid nanocomposite adsorbent was synthesized by confining a 2D porous organic polymer in pores of commercial 3D anionic exchanger beads using a facile repetitive deposition method and evaluated for the removal of four phenolic contaminants from water . The immobilization of TCBD in D318 conferred on the adsorbent a robust water stability a rapid solid liquid separation and an enhanced anti self aggregation property . The effects of pH contaminant type coexisting inorganic anions and natural organic matter on adsorption performance were studied . TCBD D318 exhibited high adsorption capacities | New reusable 2D POP 3D anion exchanger nanocomposite adsorbent TCBD D318 prepared. TCBD D318 with robust stability and rapid separability showed high. for phenols. Utilization of functional groups in TCBD D318 adsorbent significantly improved. High adsorption performance insensitive to pH coexisting anions and NOM. Multi binding interactions and role of hierarchical pore structure are clarified. |
S1385894720312894 | Focus on the design and execution of super hydrophobic strategies the phase control methodology that is solvent volatilization and crystallization induced phase separation at low temperature is proposed to construct three dimension poly porous structures denser stereo complexed crystals protrusions and bi continuous SCs fibrillary networks in poly poly blends for the first time . We show that generating hierarchical structures are keys to enable the super hydrophobicity instead of traditionally adding fillers . By comparing the interfacial configurations of PLA pores with different PDLA content it is shown that numerous SCs protrusions on the skeleton of 3D pores with 30 PDLA especially for the bi continuous SCs fibrillary networks with 50 PDLA very different from the porous morphology of pure PLLA . The controllable PLA chains sharply facilitate the formation of SCs protrusions by the hydrogen bonding which give rise to the limited time to growth ordered and large sized lamellae . Of particular interests are our first establishments of developing uniform SCs protrusions on the internal 3D porous skeleton and multi scale 3D fibrillary network structure for stereo complex PLA which afford the inner hydrophobic coincidence with the surface even after processed one hour by ultrasound in water . Therefore we hypothesize that the key factor influencing super hydrophobicity of the PLLA PDLA films are 3D pores and bi continuous SCs fibrillary networks combined with the roughly crystalline surface structure resembling rugged protrusions leading to the water contact angle up to 155 . Moreover the icing resistance and thermal degradation behavior are highly obvious . This work firstly pave the way to polymer derived networks with combination of self constructed crystallization protrusions and bi continuous 3D fibrillary network structure by hydrogen bonding for elegant implementation of super hydrophobic characteristics other than the traditional addition of fillers . | We prare PLA nanoprotrusions and bi continuous networks in lower Temperature. The apparent contact angle CA of porous PLA films can reach up to 155. CA values are retained at 151 and 146 even being mechanically processed. Porous PLA films have displayed excellent anti icing and tough properties. |
S1385894720312900 | This work reports the influence of the gas diffusion layer and cell assembly mode on the ethanol revalorization through the electro reforming process focusing on hydrogen and value added organics products distribution . All essays were conducted in a Proton Exchange Membrane Electrolysis Cell of 5cm | Influence of three MEA configurations on ethanol electro reforming was studied. MEA configurations were conformed varying the GDL type and the assembly mode. Porous titanium GDL exhibited higher mass transfer limitations and lower activity. Carbon paper architectures showed the best electrochemical performance. Carbon paper not assembly layout provided the highest selectivity towards acetic acid. |
S1385894720312936 | Recently sulfidation of zerovalent iron has gained increasing attention due to its merits to mediate the electron transfer from Fe | Sulfidated Fe. performed better than Fe. in peroxydisulfate activation. The absence of O. favored peroxydisulfate activation by Fe. Sulfidation enhanced Fe. corrosion by both O. and peroxydisulfate to form Fe. Sulfidated Fe. enhanced peroxydisulfate activation at oxic and anoxic conditions. Both radicals and Fe IV were identified in Fe. activated peroxydisulfate system. |
S1385894720312948 | As a kind of promising plasmonic materials Au nanoparticles especially Au insulator core shell nanostructures offer great potential in the fields of catalysis diagnosis and energy conversion however it is still a challenge to fabricate protective layer Au nanoparticles with desired performance using a facile strategy . In this work we report a new synergistic method that combines in situ ligand free plasmonic treatment with TiCl | A facile. plasmonic treatment was proposed with quantum size Au nanoparticles direct growth on photoanode. A champion PCE of plasmonic photoanode up to 12.7 has been achieved. Enhanced light harvesting and charge collection have been obtained with plasmonic treatment. |
S138589472031295X | 2 5 diformylfuran is a key near market platform chemical that has been widely used to synthesize various useful compounds . In this study a unique biomimetic system was developed by splitting the oxidation process into multi step redox circulations which can increase markedly the activity and selectivity for the aerobic oxidation 5 hydroxymethylfurfural to DFF . An Anderson type catalyst CeCu | An biomimetic catalyst CeCu OH. Mo. was employed in reaction of HMF to DFF. The yield of DFF could reach 99 under quite mild conditions. The Mo. and Ce. species play very important roles in the oxidation process. Ce. species was employed as ETMs and CuMo. anion was used as the electron donor. |
S1385894720312973 | Poly dimethyl ethers are fuel additives that can reduce the emissions associated with diesel fuels considerably . POMDME have been synthetized from methylal and trioxane catalyzed by the acidic ion exchange resin Amberlyst 15 . A batch autoclave reactor has been used to carry out experiments conducted up to equilibrium conditions . The resulting POMDME distribution is modelled using the Schulz Flory distribution theory which confirms a sequential chain growth with insertion of one formaldehyde molecule at each reaction step . The kinetic experiments were carried out in an isothermal continuous fixed bed reactor . The influence of temperature and space time 1.63.2kgh m | POMDMEs were effectively synthesised from methylal trioxane mixtures. Chain propagation modelled according to Schulz Flory theory. Product distribution depends only on conversion. Trioxane decomposition was found to be the rate limiting step. |
S1385894720313024 | The widespread use of pharmaceuticals and personal care products is posing serious environmental issues and it is imperative to develop an effective treatment for removing PPCPs . Herein we used a binary metal oxide of dibismuth copper oxide CuBi | A reaction system was built from PMS activation and photocatalysis over CuBi. Highly efficient ability for removing PPCPs was achieved. and h. were determined to be dominant active species. Mechanism based on photocatalysis and transformation of Bi Cu ions was proposed. |
S1385894720313061 | Lithium ion capacitors lately evolved energy storage devices which integrate the merits of both lithium ion batteries and supercapacitors for high energy and power densities have attracted substantial research attention in recent years . Here a Prussian blue analogue nanocube templating process was developed to produce N doped carbon nanoboxes as high performance anode materials for lithium ion based energy storage . The N CNB exhibited high specific capacities and excellent rate capability and cycling performances as an anode . If paired with glucose derived carbon nanospheres cathodes the N CNB GCNS LIC delivered a high energy density of 77.5 Wh kg | N doped carbon nanobox is developed as anode material for lithium ion capacitor. Nanobox serves as nano reservoir for lithium ions for fast lithiation delithiation. Glucose derived carbon nanospheres of 1768m. are developed as cathodes. Li ion capacitor delivers 78 Wh kg. at 0.31kWkg. and 40 Wh kg. at 112kWkg. Li ion capacitor retains 138 capacity after 40 000 cycles at 10 A g |
S1385894720313073 | The development of high performance and inexpensive bifunctional electrocatalysts to replace precious metal catalysts for hydrogen evolution reaction and oxygen evolution reaction remains a thorny issue in the field of electrochemical water splitting . Here a three dimensional rods array catalysts of Ni | Fe doped Ni. nanorods are synthesized by a simple one step hydrothermal method. Application of bimetallic composite foam FeNi. avoid the use of iron salt reagents. Fe doping significantly improves the catalytic performance of Ni. Fe Ni. @FeNi. 8 can achieve efficient overall water splitting and urea electrolysis. |
S1385894720313085 | It requires excellent conductivity rapid diffusion of electrolyte and high active specific area of active materials to achieve efficient supercapacitor . Herein the novel NiCo | Unique MOF pyrolysis and sulfuration method was used to prepare electrode material. The NiCo. Ni. C electrode shows a high capacity of 293.6mAhg. at 1Ag. The hetero interfaces in NiCo. Ni. C endow high electrochemical activity. The double layered yolk shell structure reduces diffusion resistance of electrolyte. |
S1385894720313097 | To overcome the drawback that the electrochemical performance of supercapacitors tends to deteriorate at high working temperatures due to exothermic redox reactions during the chargedischarge process we designed and fabricated a novel type of polyaniline carbon nanotubes functionalized hierarchical phase change microcapsules as a self thermoregulatory microelectrode system . In this system a layer by layer shell configuration was constructed by fabricating a SiO | A novel self thermoregulatory microelectrode system was designed for supercapacitors. The system was constructed by PANi CNTs functionalized phase change microcapsules. The system has a high latent heat storage capacity and good thermal regulation effectiveness. The system exhibits the improved supercapacitor performance and cycle stability. This work offers an innovative strategy for design of high performance electrode materials. |
S1385894720313103 | Smart devices based on paper based composite materials are attracting increasing attention for applications in wearable and flexible energy storage and strain sensors due to their outstanding flexibility and light weight properties . Although the paper materials are modified by various methods to overcome the shortcomings of poor conductivity and obtain various smart properties the functionalized paper based materials generally have poor swelling mechanical strength and cycle stability in the electrochemical process which seriously affects the application of paper based devices in energy storage . Herein for the first time a new class of symmetrical integrated smart paper based supercapacitors with binder free was fabricated by incorporating vitrimer into original paper with pencil drawing loading polyaniline nanofibers . The resultant | A smart integrated bifunctional paper based device is fabricated. The paper device shows good reshaping shape memory and self healing properties. The supercapacitor with separator free delivers high energy and power densities. Introduction of vitrimer improves the cycle stability of the paper based device. |
S1385894720313115 | Electrospun polypropylene fibrous membrane was selected as a substrate to graft ionic liquids and avoid tedious ILs separation and recovery . A catalytic membrane BILs g PPF was prepared by long distance and dynamic low temperature Ar plasma flow activation and subsequent grafting with dual SO | A novel multistage membrane series reactor was developed to catalyze esterification. ILs was grafted into porous PP fiber membrane to prepare catalytic membrane. Green low temperature Ar plasma activation and grafting strategies were carried out. The catalytic membrane reactor showed high catalytic activity for esterification. The proposed kinetic model can predict the esterification reaction well. |
S1385894720313127 | Gemcitabine an analogue of deoxycytidine has potent antitumor activities against various solid tumors and is an excellent radiosensitizer as well . However Gem has a very short half life making it difficult to achieve the long term synergies between chemotherapy and radiotherapy . Herein we developed a long acting Gem delivery system using a palmityl modified Gem derivative as the drug and an injectable and thermosensitive hydrogel as the vehicle and then combined with multiple radiation therapy for the synergistic treatment of tumors . The thermosensitive hydrogel that exhibited a temperature responsive solgel transition was composed of two poly | A long acting delivery system was developed based on Gem derivative and thermogel. The sustained release of Gem played a dual role in chemoradiotherapy. The delivery system achieved synergistically enhanced chemoradiotherapy effect. |
S1385894720313140 | With their unique properties and potentials in several critical applications highly crosslinked and conductive nanofibrous films have attracted broad attentions recently . However it is still a great challenge to produce high performance and uniform HCC NFs with controllable thickness on a large scale . Electrospinning could be used to fabricate nanofiber films but it falls short in creating intimate mechanical and electrical joints between adjacent nanofibers for crosslink . Herein a new strategy inspired by the fabric shrinking when drying was applied to produce HCC NFs . Hydrophilically engineered electrospun polyacrylonitrile nanofiber film was dip coated in a water solution of PEDOT PSS and was then dried naturally . By preventing contraction of the film in its lateral plane while allowing its thickness shrinking the capillary effect during water evaporation resulted in collapse of the large pore volume in the film and the subsequent joint formations between PEDOT PSS coated PAN nanofibers which are further cemented together by the conductive polymer coating . The electrochemical electrical and mechanical properties of such fabricated HCC NFs were studied and they were successfully applied as electrodes to demonstrate high rate supercapacitors and as a flexible porous material for electromagnetic interference shielding . The studies suggest HCC NFs produced by this facile method have promising prospects in several applications . | Designed template guarantee time saving uniform and high thick for film electrode. Highly cross linked nanofibrous film is effective for preparing high rate SCs. Highly cross linked nanofibrous film shows high performance EMI shielding ability. |
S1385894720313152 | Well designed structures with sufficient electroactive sites are vital for pseudocapacitive materials to yield high performances . Herein we propose a facile electrochemical activation strategy to synthesize Ni Co oxyhydroxides nanoflowers decorated with N S co doped carbon fragments . The applied voltage can rapidly induce significant structural transformation of pristine Ni Co sulfides particles into Ni Co OOH nanoflowers . Moreover this evolution process endows the thin nanoflakes with abundant pores . Benefiting from the massively exposed active sites rich mixed valences of bimetals and high speed electron ion transport pathways the Ni Co OOH NSCF exhibits an excellent capacity of 237mAhg | A facile activation strategy realizes the phase and structural self reconstruction of transition metal materials. The in situ self formed Ni Co OOH NSCF has abundant pores and defective sites for faradaic reactions. The device delivers a high energy density of 94.3Whkg. and power density of 18kWkg. This general method opens a new avenue for the structure regulating of electrode materials for energy storage. |
S1385894720313164 | To improve the relatively low transport efficiency of ionic liquid based polymer inclusion membrane an integration of electrodialysis with PIM is explored for the facilitated transport of Cr . Several parameters such as current density carrier concentration initial composition and properties of feed and stripping solutions have been systematically studied . Current intensity was crucial to the facilitating transport of Cr while a threshold of current density was observed at around 7 mA cm | Low diffusion efficiency of PIMs was significantly improved by integrating ED. Both thresholds of carrier content and current intensity were observed. Fixed site jumping mechanism in PIM is confirmed by the electro transport. High current intensity induced a continuous pathway transport of Cr VI . Multi membrane stacks PIM ED system is feasible for industrial application. |
S1385894720313176 | High performance flexible energy storage is highly desirable for portable electronic devices . We report herein a facile strategy in precisely anchoring redox juglone onto carbon nanotubes and interweaving with bacterial cellulose nanofibers as stretchable nonwoven porous membrane . The chemical bonding of juglone on CNTs greatly enhanced charge transfer of the composites via smooth electron hopping between pendant organic molecules along the CNTs conductive highway . The optimal composite J | Juglone bonded CNTs interweaving cellulose nanofibers as self standing electrodes. Juglone electron hopping contributing high conductivity and specific capacitance. Flexible electrode exhibiting robust high energy storage performance. All solid state asymmetric supercapacitors outperforming most reported CNTs devices. |
S1385894720313188 | Fluidized bed electrodes could offer an interesting way to increase the electrode surface area applicable in electrochemical processes when the problem of poor electrical contact within the particle bed could be overcome . We recently demonstrated that the contacting can be improved by the use of magnetizable electrode particles and the superposition of a magnetic field . However details of the magnetic influence on the charge transport are still mostly unknown . In this work we investigate the electrodynamics of a fluidized bed electrode with and without the superposition of a magnetic field by means of chronoamperometry and electrochemical impedance spectroscopy . In the chronoamperometric studies two types of charge transfer mechanism can be distinguished by the slope of the resistance increase with increasing distance between the electrodes . In close proximity to the electrodes direct conductive charge transfer along statistically formed particle chains dominates . Because the probability of uninterrupted particle chains quickly diminishes with increasing length above a certain distance of approx . 6mm a second so called convective charge transfer mechanism dominates . This mechanism is based on the transfer of electrons between colliding fluidized particles and corresponds with a substantially higher specific resistance . The conductive charge transfer mechanism can be enhanced by up to a factor of four applying a superimposed magnetic field while the second mechanism shows only a weak field dependence . The presented equivalent circuit model and the magnetic field dependency of its parameters contribute to a deeper understanding of the novel magnetically stabilized fluidized bed electrode and demonstrate the usefulness of EIS measurements for the prediction of the effectiveness of a particle based electrochemical reactor . | Improved charge transport within a fluidized bed electrode by a superimposed magnetic field. Doubling of the specific conductivity in close proximity to the working electrode. Enhancement of the effective capacity and effective electrode surface by up to 400 . |
S138589472031319X | The hydrolysis acidification tank was usually selected as the pretreatment of combined industrial and domestic wastewater for municipal wastewater treatment plants . Strict source control and urbanization substantially reduced industrial wastewater fed into MWWTPs and thus HAT should be repurposed . Long term survey of a full scale MWWTP showed HAT had adverse effects on biological nutrient removal of subsequent activated sludge systems because it increased difficulty of BNR owing to carbon source loss and generated sulfide preferentially combining with ammonia monooxygenase in anaerobic phase of posterior biological treatment process to significantly inhibit activities of nitrifiers . Full scale experiment of bypassing HAT achieved more efficient nitrogen and phosphorus removal and thus three pilot scale systems were designed to investigate process performance by upgrading HAT to anaerobic side stream reactor and anaerobic main stream reactor . The three systems were equally effective in chemical oxygen demand total phosphorus and ammonium nitrogen removal . Upgrading HAT to ASSR and AMSR enhanced total nitrogen removal from 63.3 to 65.1 and 72.0 and achieved sludge reduction of 15.4 and 40.5 . Intrasystem flow analysis confirmed that upgrading increased proportion of COD utilized for denitrification . | Hydrolysis tank HAT reduced COD for nutrient removal and inhibited nitrification. Upgrading HAT to anaerobic side main stream reactor ASSR AMSR was studied. Upgrading HAT improved nitrogen removal and achieved sludge reduction of 15.440.5 . AMSR enriched hydrolytic and predatory bacteria while ASSR favored slow growers. AMSR is a cost effective and advantageous upgrading strategy for HAT. |
S1385894720313206 | Carbon capture from power plants represents a powerful technique to mitigate increasing greenhouse gas emissions . In this work we describe a thin film composite membrane incorporating a polymer of intrinsic microporosity and metal organic framework nanoparticles for post combustion CO | An ultrathin highly permeable. gutter layer provided much less gas transport resistance. The fresh. based TFC membranes exhibited a CO. permeance of 4660 7460 GPU along a CO. N. selectivity of 2633. The aged. Ni MOF 74 TFC membranes showed a CO. permeance of 1200 GPU and a CO. N. selectivity of 30. Methanol vapor treatment can recover over 40 of CO. permeance while maintaining CO. N. selectivity. |
S138589472031322X | Currently most reported composite phase change materials are powdery shape which require secondary processing for practical applications . Although some monolithic composite PCMs have been developed their flexibility usually undergoes a remarkable reduction or even complete disappearance when | Highly flexible CNTs based monolithic support was constructed via a directional freezing method. Monolithic CNTs based composite PCM exhibits superior mechanical and thermal properties. Flexible mechanism of monolithic CNTs based composite PCM is proposed. This design strategy provides a new direction for future wearable fitting skin temperature controlled materials. |
S1385894720313231 | Syngas itself can be directly combusted as fuel and adopted as a versatile raw feedstock in many chemical industries . Nonetheless the fossil based resources are mainly being converted into syngas via the thermo chemical process with substantial emissions of anthropogenic CO | A municipal solid waste to energy conversion platform was established. CO. was fed as a reactant for CO formation from pyrolysis of yard trimming. Concrete waste was used as a catalyst to expedite syngas formation from pyrolysis. |
S1385894720313255 | Submicronization of organic compounds is a challenging requirement for applications in the imaging and pharmaceutical fields . A new Supercritical AntiSolvent process with microreactor was developed for nanoparticle synthesis . Tetrahydrofuran was used to solubilize a model organic molecule tetraphenylethylene and supercritical carbon dioxide sc CO | Synthesis of ultra small organic nanoparticles in high pressure microfluidic systems working under turbulent conditions. Determination of solid supercritical fluid surface tension by coupled numerical experimental approach. Numerical investigation of mixing influence on particle size distribution. |
S1385894720313267 | The developing sulfide solid electrolyte is a promising way to overcome shuttle effect of polysulfide in the traditional liquid Li S battery . However an air stable sulfide solid electrolyte and competitive solidsolid interface structure must be constructed firstly . Herein we have designed an organicinorganic multi scale composite electrolytes to overcome the interfacial issues of solid state Li S batteries . The organicinorganic composite electrolyte consists of a gel polymer electrolyte and an oxygen doped inorganic sulfide solid electrolyte . The O doped sulfide solid electrolyte improves its chemical stability and suppresses the lithium dendrites . A thin GPE film protects the crystal structural stability during cycles and greatly enhances the performance of O doped sulfide solid electrolyte due to the GPE not only constructs soft interface contact between S cathode and solid electrolyte but also builds lithium ion transport paths by ionic liquid between them . Those SSLSBs display a very good cycling performance with the specific capacity of 1023 mAh g after 50 cycles at 60 C and 541 mAh g after 150 cycles at 30 C under same rate of 0.1 C. This study demonstrates that the development of advanced solid state Li S battery needs to fully integrate a number of technical advantages . | The H. S release of sulfide solid electrolyte can be restrained by 15 O doping. The GPE inhibits the interface reaction between S cathode and sulfide electrolyte. The composite electrolyte also controls the generation of polysulfide in the cycles. The crystal structure of composite electrolyte keeps stable after multiple cycles. This SSLSBs shows excellent electrochemical properties at 60 C or room temperature. |
S1385894720313279 | The fibrocartilaginous enthesis regeneration after rotator repair is still a major challenge . Although magnesium based alloy orthopedic implant is effective to promote fibrocartilage formation at the tendon bone interface in the anterior cruciate ligament reconstruction model it was limited in the rotator cuff repair for its special anatomical structure . Herein we developed a multifunctional self healing magnesium ions quaternized chitosan Pluronic F127 hydrogels to achieve in situ and customized release of Mg | Mg QCS PF composite hydrogels mediated the sustained release of magnesium ions. The hydrogels exhibited self healing adhesive properties and biocompatibility. The hydrogels greatly promoted BMSCs adhesion and chondrogenic differentiation. The hydrogels significantly increased the fibrocartilage regeneration |
S1385894720313280 | The creation of thermostable flame retardant mechanically robust bioplastics is highly desirable in the industry as one sustainable alternative to traditional petroleum based plastics . Unfortunately to date there lacks an effective strategy to endow commercial bioplastics such as polylactide with such desired integrated performances . Herein we have demonstrated the fabrication of a novel MXene phenyl phosphonic diaminohexane nanohybrid | Novel layered MXene PPDA 6 was rationally designed and synthesized. The addition of 1.0wt of MXene PPDA 6 hybrid significantly increases both thermal stability and flame retardancy of PLA. The MXene PPDA 6 hybrid can improve the toughness of PLA. |
S1385894720313292 | For the uranium extraction from seawater in marine environments the adsorbents need to possess sufficient mechanical strength to withstand the crashing force of the ocean waves as well as anti biofouling ability to prevent the blockage of the chelating sites by marine microorganisms . Herein a facile one step process is designed to massively construct robust and anti biofouling poly aerogels for highly efficient uranium extraction . The gels display porosity large surface area flexibility excellent mechanical strength to withstand the crash of the waves benefitting from the adhesive antibacterial compounds and the tight covalent bonding between the antibacterial compounds and PAO molecules and the adsorption capacity reaches up to 10139.7mg U g Ads in the 8ppm uranium spiked solution . Significant inhibition zones are observed around the Anti PAO gels the adsorption amounts in bacteria contained seawater reach 90.67 94.82 of that in sterilized seawater indicating the beneficial antifouling effects of the prepared aerogels for uranium extraction providing an excellent extraction capacity of 9.290.59mg U g Ads after a 30 day field test in natural seawater . More importantly this developed strategy possesses universal applicability and it can be used in other amidoxime molecules and other forms of uranium adsorbents to prepare the antifouling aerogels and fibers . Together with the economic analysis results we believe that the developed amidoxime aerogels are promising in the industrialized uranium extraction from seawater . | A facile universal method is designed to construct robust anti biofouling AO gels. The gels display porosity large surface area and excellent mechanical strength. The gels exhibit very high uranium capture capacity and long service life. Bactericidal assays and simulated seawater tests verify their antifouling ability. They have good practical prospects also due to the massive and low cost production. |
S1385894720313309 | Total ammonia nitrogen is a significant sign of the polluted water body and harms the aquatic environment . In order to enhance ammonia resource recovery and simultaneously treat the wastewater a novel flat sheet gas permeable membranes were prepared by paper making and hot press forming process sequentially . Because of an excellent balanced performance the GPM 3 was selected as the core functional component for the flat sheet GPM modules . Results demonstrated that the optimal TAN recovery rate of this contactor could be achieved at pH value 11 temperature 30C stirring speed 150rpm and flow velocity 7m min after 6h reaction wherein the overall mass transfer coefficient | A novel flat sheet GPM was prepared for ammonia resource recovery form wastewater. 75.9 recovery rate of TAN was achieved at the optimal conditions. GPM could balance COD TN ratio and recover TAN for landfill leachate treatment. GPM is a realistic separation medium because of the prominent antifouling property. |
S1385894720313310 | Metal organic frameworks based catalysts are rising stars in advanced oxidation processes to generate reactive oxygen species . Nevertheless constructing an affordable and recyclable MOFs derived catalyst with high reactivity and stability is highly desirable but still challenging . Herein we unprecedentedly designed a novel CoAl | ZIF 67 derived CoAl. @ Al. pellet CoAl. @AP was synthesized. SO. OH. and O. were produced in the CoAl. @AP PMS system. SO. and. played the vital roles in oxidative removal of metronidazole. CoAl. @AP showed high activity stability and reusability in catalytic reactions. |
S1385894720313322 | In this study a novel pressure drop model of gas liquid flow with mass transfer in the tree typed microchannels is proposed by extending from the gas liquid flow with mass transfer in the single microchannel . For the gas liquid flow with mass transfer in the single microchannel the evolution of the length of the bubble along the microchannel is divided into the body shortening stage and the cap shrinking stage . At two different stages the decreasing rates of the bubble length and velocity are obviously different . Consequently a novel calculation method of the number of slug units based on the time scale is presented and the model of average pressure drop of a slug unit is revised . Then compared with flow behavior in the single microchannel two major flow patterns in the tree typed microchannels are identified as non breakup flow and breakup flow . In the non breakup flow bubbles alternately enter the last level channel while in the breakup flow bubbles rupture and daughter bubbles respectively enter the last level channel . Subsequently the pressure drop model of the gas liquid flow with mass transfer in the tree typed microchannels is proposed by jointly considering the effects of the absorption and the bubble dynamics . | A novel calculation of the number of slug units based on the time scale is presented. The pressure drop model of a slug unit is revised by considering the mass transfer. Two major flow patterns in the tree typed microchannels are identified. A novel pressure drop model of gas liquid flow in tree typed microchannels is proposed. |
S1385894720313334 | Developing an ecological and economical method for fabrication and application of polymer hydrogels is important for the hydrogel coating electronics . Here a dynamic oxidation and coordination system composed of sulfonated lignin and Fe | The redox SL Fe. chelates can shorten the hydrogel gelation time by 99.67 . The hydrogel obtained stretchable conductive adhesive and UV blocking properties. The green SL Fe. chelates imparts excellent self healing properties of the hydrogel. The rapid preparation of soft multifunctional coatings electronics was proposed. |
S1385894720313383 | The presence of dyes as pollutants in wastewater sources from textile industries can cause significant health issues if they are not adequately treated . Dye adsorption to entrap contaminants in nanoparticle pores has created considerable attention in recent years due to the environmental concerns occurring as a result of spillage of dyes in water bodies . In efforts to understand adsorption capability UiO 66 metal organic frameworks were developed and examined for the separation of four pollutant dyes containing methyl red methyl orange malachite green and methylene blue which are widely used in textile industries . The adsorbent structural stability in water chloroform and dimethylformamide was studied for one year period to understand their chemical stability . The UiO 66 crystalline structure remained unchanged in water and chloroform while XRD patterns of UiO 66 aged in DMF showed only a minor change which might be due to the partially exterior framework collapse . The maximum adsorption capacities of pristine UiO 66 for anionic methyl red and methyl orange dyes were slightly higher than those of the cationic malachite green and methylene blue dyes particularly at lower pH values . The partition coefficients of pristine UiO 66 for MR MO MG and MB dyes were found to be 1.137 2.208 0.070 and 1.345mg g M respectively which indicated that pristine UiO 66 had a good affinity to MO dye . The adsorption results perfectly matched the pseudo second order kinetic model . The MR MO and MB adsorption isotherms have matched the Langmuir model while MG isotherms are in line with the Freundlich model . The distinctive features of the UiO 66 framework make it potentially applicable for the treatment of wastewater . | UiO 66 showed excellent structural stability against water chloroform and dimethylformamide. Pristine UiO 66 and its solvent aged samples showed good selectivity for anionic dyes against cationic dyes. UiO 66 exhibited the highest adsorption selectivity for anionic dyes after aging in water for 12months. UiO 66 exhibited the maximum adsorption capacity for anionic methyl orange dye. |
S1385894720313395 | Seeking effective strategy to design multifunctional materials for pollutant removal and solar fuel production is of great significance for solving the worldwide environment and energy problems . In this work two dimensional porous graphite like carbon nitride p g C | 2D p g C. NSs were hybridized with 3D hierarchical TiO. MFs via hydrothermal route. 2D p g C. exhibits extraordinarily selective adsorption towards anionic dye. TiO. p g C. HAs show enhanced photocatalytic TC degradation and CO. reduction. Porous nanostructure heterojunction and C vacancy cause the boosted photoactivity. |
S1385894720313413 | Substrate clogging is regarded as one of the main influencing factors on the sustainable operation in subsurface flow constructed wetlands . The accumulation of extracellular polymeric substances produced by microbial metabolism may contribute to the substrate clogging due to the increasing formation of biofilms in CWs . In this study the quantity and composition of EPS and the distribution and variation of bacterial communities in different CW systems with and without aeration and biochar addition were comparatively investigated . Biochar and intermittent aeration addition could shift the production and compositions of EPS in SSFCW . Higher total EPS production was observed in CW with intermittent aeration and biochar 328mg L | EPS microbial communities and its implications for clogging were investigated. Total EPS quantity increased in SSFCWs by applying aeration with biochar addition. Contents of different types of EPS decreased from upper to lower substrate layer. Biochar and aeration enhanced the abundance of microbes but reduced the diversity. Aeration and biochar addition may increase potential risks of clogging in SSFCWs. |
S1385894720313425 | The treatment of plastic waste is a global issue and the demand for technologies to reuse or upgrade plastic waste is increasing . In this study waste polyethylene terephthalate plastic bottles were used to prepare cost effective porous carbons and the prepared carbon materials were tested for capturing CO | Microporous carbons were derived from PET plastic bottles by chemical activation. PET KOH 973 showed the highest CO. uptake of 4.42molkg. at 298K and 101kPa. Langmuir isotherm and pseudo second order kinetic models described data well. Adsorbents from PET wastes are promising for capturing CO. and solving plastic waste disposal. |
S1385894720313437 | Turning heterocyclic contaminants into polymers from industrial wastewater is a promising method that opens a new door for feasible and cost effective treatment for aromatic wastewater . In this study CuO shows the high reactivity in the catalytic oxidation of thiophene by persulfate under pH neutral condition and the observed rate constant | PS is activated on CuO via the nonradical pathway. The activated PS abstracts electron from thiophene with the formation of thiophene radical cation. Thiophene radical cations are polymerized into insoluble polythiophene. dioxides. The produced polymers exhibit pseudocapacitive properties. |
S1385894720313449 | Reactive oxygen species are likely to accumulate around severe bone defects which jeopardizes activities of surrounding cells and hampers new bone formation . An effective strategy to address this issue is to develop scaffolding biomaterials with both antioxidant and osteoinductive capacities . An aniline tetramer and glycine ethyl ester co substituted polyorganophosphazene was synthesized and expected to meet the demands since the AT moieties were antioxidant and the phosphorus rich phosphazene moieties were osteocompatible . Moreover the AT endowed the PATGP with conductivity to match the electrophysiology of bone tissues . By applying | An aniline tetramer and glycine ethyl ester co substituted polyorganophosphazene PATGP is synthesized. PATGP is biodegradable and non cytotoxic for cell culture and. implantation. PATGP is antioxidant and able to scavenge reactive oxygen species ROS . PATGP is electroactive and rich of phosphorus element to be osteoinductive. PATGP can induce osteogenesis more efficiently than non conductive polyorganophosphazene and polyester. |
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