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S1385894719330803 | Owing to high safety and considerable energy density rechargeable all solid state lithium metal polymer batteries with organic inorganic composite solid state electrolytes have been recognized as one of the most promising battery systems . However 4V or above class ASSLPBs still suffer serious capacity degradation arising from the complex interface issues between the electrode and electrolyte . Herein for the first time we find the oxidation decomposition of TFSI | The real electrochemical stability of organic inorganic CSSE is confirmed by simulating the real working environment. Capacity fading mechanisms of 4V class ASSLPBs are elucidated by systematic electrochemical testing and physical characterization. Two targeted modification methods for 4V class ASSLPBs are proposed. |
S1385894719330815 | Nanoengineering technology has made great achievements through the design of useful nanostructures and components to provide us with more functional materials . Therefore the ideal performance can be achieved by maximizing the contribution of nanostructures and components . As a typical material core shell material has been widely studied in order to find more possibilities in the nanoengineering applications . In this work a designable core shell composite material with graphitized tunable hollow carbon sphere as the core and sheet like MnO | Hollow carbon. was prepared by a facile method. The structure of shell could be tuned. The dielectric loss ability of hollow carbon sphere can be adjusted. The sample with optimized shell and carbon core presents the broad electromagnetic absorption performance. The mechanism has been discussed in depth. |
S1385894719330827 | Recently biomass derived fire safe epoxy thermosets have been developed for the substitute of petroleum derived bisphenol A epoxy thermosets due to the shortage of petroleum resources and the negative health impacts of petroleum derived products . However the synthesis of bio based epoxy thermosets combining excellent mechanical properties and fire safety performance is still a great challenge . In this paper a novel Schiff base compound 4 4 bis bis bis was efficiently synthesized from bio based protocatechualdehyde . PH ODA was subsequently reacted with epichlorohydrin to obtain the epoxy monomer N N bisphenyl methanimine . After curing PH ODA EP with 4 4 diaminodiphenylmethane the cured resin PH ODA EP DDM network possessed a high glass transition temperature | A novel biomass derived epoxy thermoset was synthesized from Schiff base compound. Schiff base structure promotes char formation and reduces the fire hazards of epoxy thermoset. The new epoxy thermoset exhibits superior mechanical properties and high glass transition temperature. This paper provides a new strategy for simultaneously enhancing the mechanical properties and fire safety performance. |
S1385894719330839 | The application of lithium ion battery in portable electronics and electric vehicle has received tremendous attention however challenges remain in seeking suitable high capacity anode materials with excellent rate performance and thus potentially to boost the energy power density . Here we report an arc discharge production of high quality F modified graphene as anode for LIB with high rate capability . As a result of F modified the acquired graphene exhibits high atomic ratio of C O excellent electric conductivity and more crumpled and wrinkled surface . Interestingly the in situ formation of LiF nanoparticles during the first Li | A high quality F modified graphene as rate capability anode for Li ion battery is reported. The structural evolution of F modified graphene electrode during the Li. insertion extraction is investigated. The F modified graphene delivers a high reversible capacity outstanding rate performance and excellent cycling stability. |
S1385894719330852 | Herein an efficient electrochemiluminescence energy resonance transfer system was first applied in an immunosensor for the detection of chloramphenicol . SnS | A novel ECL RET from SnS. QDs to. NSs is applied in a competitive immunosensor. As an environmentally friendly nanomaterial SnS. QDs is acted as a donor in ECL RET. The flaky. NSs served as the acceptor displaying stable quenching performance. The proposed biosensor provide a sensitive and specific method for CAP detection. |
S1385894719330864 | The repair of chronic rotator cuff injury primarily depends on surgery to biomechanically strengthen the connection between the tendon and bone . There are numerous studies on tendon to bone healing to promote bone regeneration or collagen reconstruction in tendons . However chronic rotator cuff injuries are often associated with fat infiltration and few studies have taken this aspect into account let alone overcome the two challenges of bone healing and fat infiltration at the same time . Here inspired by the structure of cowpea | A novel bi lineage nanofiber mat for rotator cuff tissue repair was fabricated. Li. @MSNs PEUU nanofibers mats showed high biocompatibility. The mats also showed matched mechanical properties. The fabricated mats inhibit of fat infiltration of the mats. Improvement of tendon to bone healing of rotator cuff was also effective. |
S1385894719330876 | A novel multi functional sensor was fabricated with multi layer and internal 3D network structure via two step assembly that mimicked the natural hierarchical skin model . The collagen aggregates derived from chromium containing waste leather were used as the substrate while polyaniline acidified multi walled carbon nanotube composites were employed as the conductive materials . The multi functional flexible sensor was assembled resulting in multi dimensional recognition ability 5.2 bending and twisting strains fast response and broad dynamic response range . Notably the multi functional sensor had superior sensing performance to humidity and comfortable wearing performance . Owing to these merits the fabricated sensor with multi functionality and intelligence can potentially act as the artificial skin for robot hand to detect weak pressure and humidity changes displaying great promise for applications in the fields of real time health monitoring biomedical and intelligent robots . | A multi functional sensor mimicked the natural hierarchical skin was fabricated. Flexible and biodegradable CA was firstly used as the matrix of the sensor. The sensor showed multi dimensional recognition ability. The sensor had good performance as a humid ultrastable sensor with short hysteresis. The sensor displayed comfortable wearing degradability and durability properties. |
S1385894719330888 | Water induced shape memory polymers are the desired candidates for the uses in the fields of surgical operation smart textile and aerospace . However most of water induced SMPs are non biodegradable petroleum based polymers and a quick response to water of SMPs is usually accompanied with the loss of wet strength due to the over hydration . To address this issue in this work a water resistant cellulose nanopaper was firstly prepared with the cellulose nanofibrils produced by formic acid hydrolysis and then the obtained CNP was modified via immersing in chitosan for the preparation of a robust CNP with quick water and humidity responses . Results showed that the original shape of the modified CNP after folding could immediately respond to water and humidity . This quick response of the modified CNP was due to the synergistic hydration of CS and CNFs network and the presence of CNFs with ester groups could prevent the over hydration of the modified CNP . Furthermore the strong interactions between CS and CNFs and the reduced defects of CNP after modified with CS endow the final CNP with excellent mechanical performance and high wet tensile strength high transparency as well as good barrier properties and antibacterial properties . Hence the resultant CNP has potential applications in the fields of surgical operation smart textile humidity sensor and high quality packaging . | A robust and water induced shape memory CNP was prepared with CNFs and CS. Fast response to water of the CNP is due to synergistic hydration of CS and CNFs. The final CNP shows excellent wet strength and folding endurance. The final CNP exhibits amazing barrier and antibacterial properties. The final CNP has potential use in humidity sensor packaging medicine etc. |
S138589471933089X | Laboratory scale electrochemical disinfection experiments were carried out to investigate its removal efficiency for 23 antibiotic resistance genes that confer against 8 classes of antibiotics and its effects on the antibiotic resistance of surviving bacteria . EC treatments were conducted at different current densities and with different reaction times . Prolonged electrolysis resulted in a higher inactivation rate than an increased current density while the former was less efficient in the removal of ARGs . For example the inactivation ratios for the T20 and D80 treatments were both 99 while the decrease in the relative abundance of ARGs with D80 was greater than that with T20 . The detection frequency of bacteria resistant to the tested antibiotics decreased by 9100 after EC treatment . This was mainly attributed to a change in bacterial composition . The proportion of bacteria with high antibiotic resistance frequencies decreased such as | Generations of free chlorine and. OH varied between T and D treatments. ARGs removal was closely associated with free chlorine and. OH. The relative abundance of ARGs decreased with increasing current densities. Less multi antibiotic resistant bacteria survived EC treatments. The MAR indices of wastewater was significantly reduced after EC disinfection. |
S1385894719330906 | Potassium ion battery and sodium ion battery have been considered as next generation energy storage devices due to their low cost and abundant resource . The main challenge lies in the lack of novel electrodes to accommodate the large size K Na ions . Herein a facile solvothermal method coupled with a polydopamine coating and post annealing strategy is developed to synthesize unique box like | NiS were encapsulated in nitrogen doped carbon cages. the NiN chemical bond. Highly conductive network and fast ionic diffusion channels were constructed. Cycling stability could be attributable to the stronger affinity of N doped carbon. |
S1385894719330918 | Selenium is a prospective candidate of electrode material for high energy batteries . However the low Se loading volumetric expansion and polyselenide shuttling between cathode and anode are major factors to limit further development . To overcome above issues the hollow carbon structure with interconnected mesopores is used to confine Se composite via a facile annealing treatment route . The Se HMCS electrode exhibits excellent performance including a long cycle life 710mAhg | HMCS was synthesized as host matrix for Se via a facile annealing treatment route. The HMCS buffers the volume expansion of Se and polyselenide. The unique mesoporous facilitate fast and stable electronic ionic transport. The Se nanoparticles shorten the Li. Na. diffusion distance. Capacitive Li. Na. storage mechanism contributes to the rate performance. |
S138589471933092X | Fullerene derivatives are promising electron transporting materials for low temperature processed inverted perovskite solar cells . However fullerene derivatives have some disadvantages e.g . phenyl C | HPDT is developed as an interface material in perovskite solar cells. HPDT shows suitable energy levels and high electron mobility. HPDT can achieve a homogeneous pinhole free PCBM layer. The PSC performance is improved with negligible hysteresis and enhanced stability. |
S1385894719330931 | An advanced energy harvesting device that can be powerful with rapid storage mechanism effective conservation intact and secure recycling presently fascinate and are increasingly developed with the proper synthesis strategy and combination of nanomaterials with complementary properties . In 2011 extensive research has led to the wide emanating family of two dimensional multi layered transition metal carbides carbonitrides and nitrides in conjunction with surface terminations namely fluorine hydroxyl or oxygen which add hydrophilicity to their surfaces these are collectively known as MXenes they are derived from a selective etching of atomically thin sheets of A element from MAX phases in the acidic solutions which contain aqueous fluoride . The gifted chemistry and unique morphology of MXenes allow us to use them for distinct applications which includes energy storage electromagnetic interference shielding anti bacterial activity nanofiltration of water reinforcements nuclear waste management and catalysis . The excellent properties inclusive of high lithium storage capacity rapid diffusion of Li and low operating voltage make the MXenes a promising electrode the macroporous Ti | Discussion on 2D MXenes as novel material for lithium storage. Explores the mature synthetic routes to achieve high quality MXene layers. Parse the structure and miscellaneous properties. Deliberation on Lithium battery and Supercapacitor electrodes. Comparison between convectional electrodes and MXene electrodes. |
S1385894719330955 | Discharged tetracycline seriously threatens human health and environmental safety . Herein we developed a novel 3D flower on sheet structure of Zr metal organic framework adsorbent with the assistant of N S co doped carbon dots as heterogeneous nucleation for selective and effective removal of TC residue from contaminated water . Functional groups of UiO 67 NSC acts as a tentacle to identify TC molecules and TC adsorbed NSC can be separated easily by incorporating in UiO 67 structure . Hierarchical UiO 67 NSC exhibited excellent recognition performance with a wide sensitive range and low detection limit for TC . Particularly vertically oriented 2D nanosheets in UiO 67 NSC alleviate the diffusion barrier and enhance mass transfer between adsorption sites and TC molecules endowing it with an ability that can improve the TC adsorption capacity of parent UiO 67 to 427.35mg g. UiO 67 NSC with 0D structure has no significant toxic effect on human cells which demonstrate the prepared hybrid structure is safety in practical application . Our data indicate the great potential of UiO 67 NSC as an innocuous bifunctional smart adsorbent for the effective detection and removal of TC residues and we not only provide a rational design of advanced metal organic framework based hierarchical adsorbents but also shed light on an available method to toxic antibiotic residue recognition and water remediation . | UiO 67 NSC was applied in simultaneous adsorbing and sensing TC for the first time. UiO 67 NSC exhibits high TC adsorption capacity over a wide pH range pH 2.07.0 . 2D structure in UiO 67 NSC can alleviate diffusion barrier and enhance mass transfer. UiO 67 NSC can effectively recognize TC with a low detection limit 0.063mg L . |
S1385894719330967 | Peroxymonosulfate based advanced oxidation processes are promising tools for wastewater treatment . However the production of high efficient PMS activator from low cost material still needs further improvement for practical application . Herein we reported a series of sludge derived biochar as catalysts for PMS activation and subsequent degradation of organic pollutants such as acid orange 7 rhodamine B methylene blue methyl orange and their combination . Chemical treatment e.g . NH | Sludge derived biochar was prepared by using various thermal chemical treatments. As synthesized biochar used as a catalyst for PMS activation and organics oxidation. The catalyst was efficient in degrading organic pollutants by PMS activation. Non radical oxidation processes governed by pyridinic N was the dominant mechanism. Pyrrolic N activated C and large surface area favor pollutants adsorption. |
S1385894719330980 | Fabrication of high performance cost effective and environmentally friendly carbocatalysts for environmental remediation is still a challenge . In this study a series of iron and nitrogen co doped porous carbon catalysts were prepared through pyrolysis of Fe doped zeolitic imidazolate framework 8 . The catalytic performance of the Fe N C was evaluated for the degradation of bisphenol F via peroxymonosulfate activation . Fe N C at appropriate Fe doping possessed hierarchically porous architecture with abundant micro and meso pores rich defects enhanced N doping and conductivity . Compared with N C Fe N C retained original polyhedral morphology and the particle size could be tuned by controlling Fe doping amount . An optimized catalyst 1.0 Fe N C was obtained which exhibited superior catalytic activity for the degradation of bisphenol F. The rate constant was 34.0 and 6.1 times of that for N C and benchmark catalyst Co | Fe N C catalysts were synthesized facilely via. Fe doping and calcination. Hierarchical porous structure and size of Fe N C was adjusted by Fe doping. Fe N C exhibited outstanding performance for the degradation of bisphenol F. Fe N C PMS system showed high tolerance to the pH and water constituents. Dominant singlet oxygen was identified and activation mechanism was elucidated. |
S1385894719330992 | Layered double hydroxides and their derivatives are a family of promising photocatalysts that have been widely used in photodegradation of organic pollutants . We review the most recent advances in visible light driven photodegradation of organic pollutants using LDHs based materials with emphasis on the manipulation of their morphological compositional and electronic properties and the mechanistic understandings of the photocatalytic processes . Based on the characteristic structures of LDHs i.e . stable layered structure specific memory effect switchable property of layered composites and high surface area we overview the performance and mechanism of LDHs based catalysts for the photodegradation of common and persistent organic pollutants . First LDHs based photocatalysts were classified into five categories LDHs derived mixed metal oxides supporting LDHs intercalated LDHs modified LDHs and LDHs with unique structures and reviewed individually in terms of their synthetic methodologies and structural atomistic topological and electronic properties . Second for mechanistic understandings of the photocatalytic processes we summarize major factors that govern the performance of LDHs based photocatalysts including catalytically relevant properties at the metal LDHs heterojunctions adsorption effect acid base pairs and the presence of vacancy sites . Third depending on the photodegradation reactions the targeting organic pollutants were classified into four types azo dyes phenols persistent organic pollutants and other types of organic pollutants LDHs based photocatalysts with optimized performance for each type of molecule are summarized with mechanistic understandings . In addition we review recent trend in the application of LDHs based materials in new emerging areas including CO | LDHs are promising candidates for high efficiency photocatalytic removal of organic pollutants. LDHs are characterized by their morphological compositional and electronic flexibilities. Strategies in preparation of LDHs based materials with maximized catalytic efficiencies are reviewed. Challenges remain between research and practical application of LDHs based photocatalysts. LDHs based photocatalysts are also applied in other important fields with promising performances. |
S138589471933102X | Waterborne human viruses with ubiquitous prevalence in aquatic environments extremely low infectious doses and high resistance to common disinfection processes pose a substantial threat to human health . Herein for the first time a photocatalytic membrane reactor driven by visible light emitting diodes was applied for effective water disinfection of human adenoviruses . The photocatalyst used in the PMR was selected to be a metal free heterojunction with the advantages of visible light response efficient virucidal effects green properties and easy recovery | A photocatalytic membrane reactor was explored for disinfection of human adenovirus. Operation for adenovirus disinfection was analyzed by response surface methodology. 5.00 log adenoviruses could be totally killed in 540min under the optimal solution. The established prediction model matched well with the actual experimental data. |
S1385894719331031 | Formation of heterojunctions with other light absorbing semiconductors is one of the attractive approaches to realize efficient silicon based solar water splitting . As one of the promising candidates for heterojunction with silicon InAs compound semiconductor has two major advantages of narrow bandgap and high electron mobility . However the integration of Si with InAs is challenging due to several physical issues . Here we successfully demonstrate the integration of InAs nanowires and p Si via a catalyst free nanowire growth method . The presence of InAs NWs effectively improved the photoelectrochemical activities of the Si photocathode in neutral pH condition . The longer NWs are more advantageous for the proton reduction at the photoelectrode electrolyte interface since the InAs NWs act like a highway for photogenerated electrons due to their excellent electron mobility . The TiO | InAs nanowires were successfully integrated on p Si via catalyst free growth. Pt TiO. InAs NW. Si achieved excellent PEC performance and long term stability. Mechanism of charge transfer and consumption in Pt TiO. InAs NW. Si was discussed. |
S1385894719331043 | Methane enrichment in anaerobic digestion is definitely required to enhance the calorific value of biogas to ensure its application as an off grid energy source . Electromethanation in bioelectrochemical systems integrated with the AD process is a promising technology because of its efficient conversion of CO | Integrated BES AD systems for upgrading methane in biogas is reviewed. Effect of different cathode materials on performance of BES AD is explained. Interaction of microbe cathode for EET in BES AD system is outlined. Newly developed innovative designs of BES AD is reviewed. Cost analysis of different materials to be used in scaled up BES AD is outlined. |
S1385894719331055 | The work presented that by regulating the proportion between cobalt and 2 methylimidazole in distilled water a series of Co based imidazolate framework compounds with diverse shapes were synthesized at ambient temperature . The morphology and structural characteristics of the compounds were surveyed by scanning electron microscope energy disperse spectra powder X ray diffraction and N | A facile and environmentally friendly method for synthesizing Co based imidazolate framework compounds was provided. The Co based imidazolate framework compounds with five different morphologies were synthesized. A novel H. sensor was constructed. |
S1385894719331067 | Li metal has been regarded as the most promising anode material for next generation high energy density batteries . However the growth of lithium dendrites caused by non uniform deposition brings many obstacles to the commercialization process of metallic Li anodes . An effectively designed 3D current collector can significantly suppress the lithium dendrites growth and related issues . Herein we develop a 3D conductive skeleton that hierarchical copper fibers grown vertically on the copper foam skeleton by a rational strategy . The Cu fiber with numerous protuberances secondary structure can provide the electrochemical active sites which sever as charge centers to induce Li uniform nucleation and deposition on HCF CF skeleton . Furthermore the abundant porous structure of HCF CF current collector can alleviate the volume change during repeated Li plating striping . Comparison with Cu foam the HCF CF skeleton reveals an observably improved Li plating striping behavior and a high Coulombic efficiency . The Li anode based on HCF CF current collector can run for 820 h at a current density of 1mAcm | Numerous protuberances act as charge centers to induce Li uniform deposition. Increased specific surface area and porosity decrease the real current density. The HCF CF skeleton reveals a high Coulombic efficiency. Li Li symmetrical batteries show a long lifespan. The preparation strategy of HCF CF skeleton is feasible and facile. |
S1385894719331079 | Nowadays lightweight flexible and wearable sustainable electric power sources have attracted increasing attention due to the rapid development of portable electronics . Graphene fiber fabrics as newly discovered carbon textiles have exhibited attractive properties for wearable power devices . How to realize scalable construction of non woven graphene based fabric electrodes with high areal capacitance is challenging for portable electronics . Here a novel coagulation bath fabrication technique was firstly reported to prepare reduced graphene oxide fiber fabrics for areal energy dense supercapacitors . The as prepared rGOFFs showed high flexibility and conductivity . The symmetric supercapacitors assembled with rGOFFs based fabric electrodes performed a high specific gravimetric capacitance C | One step continuous spinning of rGO fibers was achieved. Non woven rGOFFs based fabric electrodes were novelty constructed. The. electrode delivered a high capacitance of 3828mF cm. The all solid state SCs device performed a high energy density. |
S1385894719331080 | As a cost efficient method for detecting analyses at trace level chitosan based surface enhanced Raman scattering sensor is a promising alternative . However research on this technique is frequently hindered to complicated operations dissatisfactory sensing and reproducible property . Herein a biosynthesis of Au nanoparticles was facially achieved through adding AuCl | Biosynthesis of Au NPs was facially achieved using an alkali chitosan solution. Dissolved chitosan with anchored Au NPs were self assembled into a 3D architecture. Well dispersed Au NPs with nanogaps led to excellent SERS. and reproducibility. Shapable porous and pH sensitive feature promoted good molecular selectivity. |
S1385894719331092 | Triazine based framework is an attractive organic polymer with microporous structure and high nitrogen content that could retard the shuttle of polysulfides for high performance lithium sulfur batteries . However insight into the role of conjugated donor of triazine based polymer in immobilizing and catalyzing polysulfides is still deficient . Here two homologous conjugated buildings of triazine unit combining with perylene and spirobifluorene were reasonably synthesized through one pot Suzuki Miyaura coupling reaction with a high yield of 92 and served as the polysulfides immobilizer and catalyst to achieve high performance Li S batteries . Compared with the counterpart of CTP 2 the fully conjugated CTP 1 modified separator possesses a higher ionic conductivity and Li | Triazine based polymers functionalized as polysulfide immobilizer and catalyst. Donor as electron reservoir was grafted to enhance the ability of triazine polymer. The charge transfer between triazine unit and lithium polysulfides was improved. The resultant Li S batteries present excellent electrochemical performance. |
S1385894719331109 | N containing organic wastewater is harmful to human health and ecosystem while its degradation remains a huge challenge for decarburization and denitrification simultaneously . In this paper we proposed a new photoelectrochemical method of chlorine oxide radicals production to oxidize mixture wastewater of phenol and N ammonia into N | Efficient degradation of N containing organic wastewater via chlorine oxide radical was proposed. Chlorine oxide radical was generated via a photoelectrochemical system. N ammonia was oxidized directly into N. with the reaction of chlorine oxide radical. |
S1385894719331110 | In this work the environmental performance of the reactive Jet dyeing process and the subsequent wastewater treatment currently carried out in the textile companies is compared with a new system . The developed system combines the application of an electrochemical process with ultraviolet irradiation to remove colour of effluents containing reactive dyes . EC UV system is also able to prepare the discoloured effluents for its subsequent reuse in a new dyeing process . | New electrochemical UV system to treat and reuse dyeing effluents. Evaluation of the environmental impact of reusing water and salt in the dyeing process. Modification of the process to increase the sustainability of the textile industry. |
S1385894719331134 | Capacitive Deionization is an emerging technology for brackish water desalination . Currently CDI technology lacks practical means of scaling electrodes from the laboratory to pilot plant level for pre commercial applications . With the aim of solving the scalability issues we have prepared easy to scale 3D composites using the highly conductive macrostructure of a graphite felt as electron transfer channel with the microstructure of activated carbon to furnish ionic adsorption sites . The electrochemical characterization of GF AC 1cm | A 3D composite electrode based on a GF and a microporous AC is proposed for CDI. Operation over 5000 cycles showed great stability 90 capacitance retention . GF AC electrode was scaled from a 1cm. single cell to a 300cm. 9 cell CDI stack. CDI stack demonstrates excellent performance. 8.7mgg. and. 63. Brackish water desalination by CDI was performed at 0.6kWhm |
S138589471933116X | Antibiotics are widespread in water and wastewater which could react with chlorine to produce disinfection byproducts during disinfection process . Activation of permanganate by bisulfite generates a permanganate bisulfite ultra fast oxidation system which exhibits more complete oxidation of refractory organics than conventional advanced oxidation processes . This study explored the formation and speciation of trihalomethanes haloacetic acids haloacetonitriles haloketones and trichloronitromethane during chlorination of antibiotics as well as the impact of | HAAs formed from antibiotics were much more than that of THMs. Disinfection byproducts formation potential DBPFP of sulfamerazine was the highest. Monochloroacetic acid was dominate in chlorinated ciprofloxacin and sulfamerazine. Trichloroacetic acid was dominate in chlorinated chloramphenicol. PM BS oxidation effectively reduced DBPFP of antibiotics even with. present. |
S1385894719331171 | The development of highly efficient photocatalytic materials and composites has been one of the main goals in the energy and environmental fields . To this date however the efficiency and stability of photocatalytic materials are still very low . This work shows a novel strategy of Pd coated TiO | The synergistic effect of Pd decorated TiO. Si nanopillars for photocatalytic applications was investigated. A comprehensive physico chemical characterization of the pillars will be presented. The capability of this route to enable and enhance the catalytic activity to the as prepared structures will be discussed. The ability of these pillars to boost water evaporation rates will be demonstrated. The general cooperative performance of nanostructures will be explained by a combined OER HER mechanism. |
S1385894719331201 | The kinetics of adsorption for Langmuir and Freundlich isotherms has been explored theoretically on the basis of Statistical Rate Theory . The Modified Pseudo First Order and Pseudo First Order models were derived from Freundlich isotherm on the basis of Statistical Rate Theory at | Kinetics study of Langmuir and Freundlich isotherms by Statistical Rate Theory. Derivation of Pseudo First Order and Pseudo Second Order models. Derivation of Modified Pseudo First Order model. Derivation of a new kinetics model for adsorption. Simulation of Humic Acid adsorption on Hematite and Kaolinite adsorbents. |
S1385894719331213 | Wastewater containing highly toxic non biodegradable and carcinogenic organic dyes and metal ions has been regarded as a severe threat to ecological environment and human health . Thus it is of great significance to develop an effective approach to purify this kind of wastewater . Herein novel magnetic adsorbent | Multifunctional magnetic composite nanoparticles were facilely prepared. The as prepared. showed excellent adsorption capacities for cationic dyes. exhibited satisfactory removal rates for metal ions in a wide pH range. The good adsorption ability was attributed to abundant active sites from CS PAA. s good stability and reusability facilitated its practical application. |
S1385894719331225 | Coptidis rhizoma the dried rhizome of the plant Coptis is a source of potentially valuable alkaloids including berberine hydrochloride . However extraction of these compounds is challenging and existing resins for adsorption based separation and purification are based on synthetic compounds which can leach into the product . Therefore we prepared separation microspheres from a natural compound . The rosin based polymer microspheres were synthesized using ethylene glycol maleic rosinate acrylate as a cross linker and methacrylic acid as a functional monomer . The physical and chemical properties of the RBPMs were characterized by different analytical techniques . The RBPMs had a clean surface narrow particle size distribution mesoporous structure and good thermal stability . BBH was adsorbed onto the RBPMs very efficiently and the adsorption process was fitted well to the pseudo second order kinetics intra particle diffusion and Langmuir isotherm model . The thermodynamic parameters indicate that the adsorption process was spontaneous exothermic physical and involved weak chemical bonds . The comprehensive analysis of experimental results suggested that the ion exchange may drive the uptake process of BBH . Dynamic adsorption and desorption tests revealed that the dynamic adsorption capacity of BBH on RBPMs was 612.4mg g. Moreover the separation capability of RBPMs for concentrating coptidis total alkaloids was established using chromatographic column breakthrough experiments and the content of coptidis total alkaloid increases from 34.2 to over 91.0 . These results suggested that RBPMs are a very promising polymeric adsorption material for concentrating coptidis total alkaloids and purifying BBH from the coptidis rhizoma extracts . | Rosin based microspheres were prepared. The microspheres had a uniform narrow size distribution mesopores and good thermal stability. Berberine hydrochloride and coptidis total alkaloids were adsorbed efficiently. Adsorption was consistent with the second order Langmuir isotherm. The adsorption capacity for berberine hydrochloride was 612.4mg g microspheres. |
S1385894719331237 | The aim of this study was to determine the role of plants on pollutant removal and bioelectricity production in the treatment of municipal wastewater with | Plant uptake of pollutants was similar in CW MFCs under open and close circuit. Live plants enhanced the power output by 6897 compared with unplanted CW MFC. improved removal of COD N and power density by 43 66 and 97 in the CW MFC. Dead. harms the CW MFC by releasing pollutants and lowering power production. improved COD removal and power density by 28.38 and 68.02 . |
S1385894719331262 | Phosphonates are environmental friendly materials and can be potentially employed to improve the removal efficiency of the clay materials . In the present work Zn Al layered double hydroxide intercalated with amino trimethylene phosphonic acid by a facile technique and employed as an adsorbent for Cu | The high adsorption capacity of A LDH is due to the metal chelating function. The reactive sites in ATMP are firstly revealed by Multiwfn calculation. The non covalent interactions of water clay interface are firstly presented by IGM. IGM analysis confirmed that ATMP LDH is combined together mainly by H bond. The reactive sites and non covalent interactions support experimental results. |
S1385894719331274 | X ray absorption fine structure analysis has been successfully used to determine the coordination environment and therefore uptake mechanism towards the uranyl cation for a selection of commercially available ion exchange resins in non saline and saline conditions Cl | Most N containing functionalities on resins uptake uranyl as UO. SO. Amidoxime containing resins form coordination complexes with uranyl. Mixed sulfonate phosphonate functionalities on resins chelate uranyl. No difference in uranyl speciation on resins loaded from fresh and sea water. |
S1385894719331298 | Graphene an ideal two dimensional material with high thermal conductivity is widely used in the field of thermal management . However its excellent electrical conductivity becomes an inevitable obstacle for applying in the electronic fields where electrical insulation materials are demanded . Herein the reduced graphene oxide decorated by magnesium oxide particles was used as the hybrid thermal conducting filler to prepare the high thermal conductivity and electrical insulation nanofibrillated cellulose based composite films via a facile vacuum assisted filtration and mechanical compression . In this way MgO nano particles not only reduced the interface thermal resistance between rGO and NFC but also cut the electric conductive pathways of rGO to enhance the thermal conductivity and maintain electrical insulation of the films . Simultaneously mechanical compression caused the compacted layered structure formed by vacuum filtration along the in plane direction . Thus the obtained composite film exhibited high thermal conductivity and anisotropy . The in plane and cross plane thermal conductivity reached 7.45W and 0.32W respectively when the filler content increased to 20wt along with a high thermal conductivity anisotropy of 23 and superior electrical resistivity above 10 | The hybrid thermal conductive filler. was prepared by in situ reaction. NFC composite films with highly anisotropic thermal conductivity were prepared. MgO reduced the interface thermal resistance of NFC composite film. The NFC composite films maintain electrical insulation. NFC composite films facilitate the heat dissipation of electronic devices. |
S1385894719331316 | Hydrophilic molecularly imprinted polymer for effective removal of pollutants from environmental water has attracted much attention due to their high selectivity and matrix compatibility . Herein resorcinol and formaldehyde have been first proposed as the hydrophilic monomers to form water compatible molecularly imprinted resin magnetic nanomaterials Fe | A novel type of hydrophilic molecularly imprinted polymers was prepared. Resorcinol formaldehyde resin as hydrophilic imprinted layer was first proposed. Two step template immobilization and surface imprinting strategies were combined. The imprinted nanomaterials have high adsorption capacity and good reusability. Specific enrichment and detection of trace sulindac from sewage samples was achieved. |
S1385894719331328 | The potential nuclear industry applications of Th make its separation from rare earth elements and U a task of great importance . Herein materials based on phosphorodiamidate functionalized silica were synthesized for efficient capture of Th from acidic solutions and subjected to in depth characterization . SBA 15 O DMAP prepared by oxidation grafting possessed the largest specific surface area pore volume and grafted group density as well as abundant oxygenated groups featuring a high Th sorption capacity rapid sorption kinetics and excellent selectivity . The sorption of Th by SBA 15 O DMAP was found to be monolayer type chemical endothermic and spontaneous . In 0.011M HNO | Th IV adsorbents based on phosphorodiamidate functionalized silica are presented. High Th sorption performance and selectivity are observed in 0.011M HNO. Trace Th separation from excess U and extraction of Th from monazite are achieved. |
S138589471933133X | The extensive use of fluoroquinolones antibiotics makes great contributions to human society but it also brings serious threats due to its stable chemical properties and difficulty in natural degradation . Since FQs can form stable chelates with polyvalent metal cations the new adsorbents based on this chelating agent can not only remove FQs effectively but also have the characteristics of selective identification on target pollutants . In this paper novel sodium alginate based gel spheres were prepared by droplet polymerization with sodium alginate as functional monomer AlCl | Novel sodium alginate based gel spheres were prepared by droplet polymerization. The prepared GA SA Al Ca gel sphere showed good adsorption performance for S OFX. The adsorption equilibrium of two prepared gel spheres could be reached in 10min. The stabilities could be greatly improved by ion and covalent crosslinking. |
S1385894719331341 | The limited gas production of Al metal oxide based thermites due to lack of gas elements greatly hinders its practical application . By contrast energetic coordination polymers are rich in gas elements from organic ligands and have the potential to rapidly decompose into corresponding metal oxides with a large amount of heat output . In this work a novel high performance energetic material based on Al ECPs is presented . Al ECPs binary energetic composites have enhanced heat release pressure production and combustion performance owing to the contribution of the father ECPs thermal decomposition reaction and the son metal oxides thermite reaction with nano Al . H | Al ECPs energetic materials with enhanced heat pressure combustion performance. Co contribution effect of father energetic ECP and son metal oxide. Father son effect promotes the birth of a new type of energetic materials. Al ECP Mn shows lower mechanical sensitivity than HMX and RDX. |
S1385894719331365 | Two dimensional porous carbon materials are very promising for energy storage conversion due to their unique microstructure reasonable pore structure and excellent electrochemical properties . A green and facile in situ carbonization technique is innovated to prepare a unique porous lignin derived carbon quasi nanosheets with rational pore distribution large surface area and excellent conductivity . The lignosulfonate zinc oxalate composite was firstly self assembled by hydrophobic bond of the amphiphilic structure in lignosulfonate using ethanol water solvent without the need to use any toxic material followed by co pyrolysis at a high temperature with gas exfoliation and in situ templating of zinc oxalate . The resulting PLC exhibits a very high specific capacitance of 320F g at 1.0 A g and long cycling stability . In addition when assembling into symmetric supercapacitors in PVA KOH gel electrolytes PLC also shows a high specific capacitance of 274F g at 0.5 A g with excellent rate capability and a high specific energy density . These excellent electrochemical performances indicate that the as prepared PLC should hold great promise for the energy storage devices opening a new path for the preparation of advanced carbon electrode material and high value added utilization of biomass . | Industrial waste lignosulfonate is used to prepare high valued carbon materials. LS ZnC. composite is fabricated in ethanol water solution without any toxic material. PLC is prepared by Gas exfoliation and In situ templating carbonization technique. PLC with rational pore distribution large surface area and excellent conductivity. PLC supercapacitor shows great electrochemical performances in energy storage. |
S1385894719331377 | Despite the fulfilling progress in fabricating metal chalcogenides based battery electrodes most effort focuses on construction of hybrid architectures and or foreign elemental doping for improving electrochemical performance . In this work we report a self template strategy to synthesize hexagonal SnS | S vacancy rich SnS. and SnS nanoplates are synthesized. Phase transformation from SnS. to SnS involves generation of S vacancies. The S vacancies contribute to improved electronic conductivity. The SVR SnS anode exhibits excellent long term cycling stability for LIBs. |
S1385894719331390 | N doped carbonaceous materials are highly promising for efficient removal of microorganic contaminants from aqueous solutions by simultaneously serving as adsorbents and catalysts . However their recollection from aqueous solutions for repeated use is challenging . Here we designed a magnetic N doped graphitic carbon coreshell structure for oxidative degradation of various microorganic contaminants via the activation of environmentally friendly peroxymonosulfate . The magnetic Co | Magnetic N doped graphitic carbon coreshell structures MN GCCSs were synthesized. MN GCCSs had great catalytic reactivity for removal of microorganic contaminants. MN GCCSs were more reactive than the commonly known activators of peroxymonosulfate. Neither radicals nor. was the active species. Around 94 of the bisphenol A was degraded after 7th catalytic cycle. |
S1385894719331407 | Developing carbon based hybrid catalysts with high reactivity good stability and low cost is critical for environmental remediation via heterogeneous advanced oxidation processes . In this work CoFe alloy particles encapsulated in nitrogen doped graphitic carbon donated as | can effectively activate peroxymonosulfate. CoFe alloy nanoparticles are encapsulated in nitrogen doped graphitic carbon matrix. Ultrahigh. 0.6032min. is obtained for the NOF degradation by. PMS. Three pathways including electron transferring singlet oxygenation and sulfate radical oxidation are explored. Low level leachable metal ions and excellent reusability are confirmed. |
S1385894719331420 | The autotrophic nitrogen removal could be achieved in the one stage or two stage PN ANAMMOX systems . A number of researches were carried out to study the impact of HET on the one stage PN ANAMMOX system . It is still not clear about the role of HET in the ANAMMOX process of the two stage system . The granule sludge system used for the ANAMMOX process also included the flocs resulting in the segregation of biomass between the flocs and granules . How the HET is segregated between the flocs and granules is still unknown . In this study we examined the role of HET in the two stage system ANAMMOX process and how the biomass segregation affects its role . The increase of floc SRT from 7h to 30d increased the floc granule ratio by 150200 depending on the influent COD concentration . The biomass segregation affected the role of heterotrophic bacteria in the ANAMMOX process of the two stage PN ANAMMOX system . When there was no biomass segregation the heterotrophic bacteria negatively impacted the TN removal as the presence of HET within the granules reduced the number of ANAMMOX bacteria reducing the nitrogen removal capacity . Under biomass floc granule segregation conditions the HET predominantly resided in the flocs and increased nitrogen removal by providing additional nitrite through the denitrification process . Compared to the TN removal without biomass segregation the segregation of HET between the floc and granules caused 3 to 40 more TN removal depending on the influent COD concentration . | Biomass was segregated in the form of granules and flocs. Biomass segregation affects ANAMMOX reactor efficiency. Model was developed to simulate the biomass segregation in ANAMMOX reactor. Heterotrophic bacteria predominantly occupied the flocs. Heterotrophic bacteria in the flocs promote nitrogen removal. |
S1385894719331432 | In order to improve the quality of syngas and regulate the deposited coke co gasification of biomass and polyethylene wastes without and with steam were investigated in a bench scale fixed bed reactor where the feedstock was pyrolyzed at the temperature of 600C followed by catalytic reforming at 800C over Ni Al | The plastic biomass ratio were studied in co gasification of biomass and plastics. Syngas quality and natures of deposited coke was studied on Ni Al. catalyst. 50 of plastic ratio had remarkable synergy on syngas and deposited coke production. of CNT in deposited coke was produced during co gasification. |
S1385894719331444 | The development of new environment friendly dielectric ceramic materials with excellent energy storage properties has become more urgent and important due to the environmental hazards and resource shortage . In this work the improved energy storage density and efficiency of Na | 0.70NBST 0.30STZ ceramic possesses a high. of 3.13J cm. and an. of 91.14 . The improved properties are explained by first principles calculations. 0.70NBST 0.30STZ ceramic exhibits a high. of 1.17J cm. and a. of 41.24MW cm. NBST based ceramics with double properties were reported for the first time. |
S1385894719331456 | Development of efficient adsorbent with low cost simple and green production process and zero secondary pollution for Cr removal in industrial applications is a great challenge for modern chemical and materials engineering . Here we developed a new strategy for preparation of porous polyacrylonitrile graphene oxide nanofibers by simple one step electrospinning of PAN GO solution in N N dimethylformamide H | PAN GO nanofibers with 5200nm pores were fabricated for efficient Cr VI removal. BET specific surface area of the porous nanofibers was 164.210.8m. Maximum experimental adsorption capacity of Cr VI was up to 382.56.2mg g. Reusability of the porous nanofibers was at least 20 times cycles. Simple low cost green of one step electrospinning had great industrial potential. |
S1385894719331468 | The titanium type lithium ion sieves are considered as a promising adsorbent for lithium extraction from liquid resources . However different TiO | A correlation between the hydrophilic and the adsorption performance of HTO x was found. Anatase TiO. derived LTO 400 showed the highest Li adsorption performance due to its the strongest hydrophilic. HTO 400 presents highly selectivity to Li. in the presence of cations like Na. and K. LTO 400 exhibits excellent recycling and high stability. |
S1385894719331481 | With the development of flexible wearable electronic devices energy storage equipment like supercapacitor with high energy density good mechanical properties and safety has attracted more and more attention . However the currently existing energy storage materials normally suffer from several drawbacks such as poor flexibility hidden danger toxicity and especially low energy density limiting their practical applications . Expanding the voltage window by employing the hydrogel electrolyte is regarded as an effective method to improve the energy density of supercapacitor . Herein we employ a zwitterionic natural polymer hydrogel with excellent mechanical strength and flexibility as electrolyte to assemble a solid state zinc ion hybrid supercapacitor with Zn foil and activated carbon electrode . The H ZHS exhibits an amazingly wide and stable voltage window of 2.4V high maximum energy density of 286.6 Wh kg | A solid state zwitterionic hydrogel electrolyte is prepared with good flexibility. A zinc ion hybrid supercapacitor ZHS is assembled by the flexible hydrogel. The ZHS exhibits an amazingly wide stable voltage window and high energy density. A good electrochemical stability is achieved even under bending and compressing. |
S1385894719331493 | Many heterostructures containing two types of strong polar bonds were often designed to synergistically increase the chemical confining for soluble lithium polysulfide in lithium sulfur batteries . To make maximum use of the two chemical interactions on confining the polysulfides a novel structure of 2D hexagonal WS | Hexagonal WS. rimmed Co. heterostructures were designed. The WS. @Co. composites show a good confinement on the lithium polysulfides. The WS. @Co. composites can also catalyze the electrochemical reactions. The designed. @Co. cathodes show excellent electrochemical performances. |
S138589471933150X | Potassium ion batteries have been considered as promising candidates for large scale energy storage due to their high operating voltage and low cost . Nevertheless the inferior cycling stability and rate capability of cathode materials hinder their practical applications . Herein we synthesized P3 type K | P3 type KMNCO microspheres has been synthesized by solvent thermal method. The hierarchical structure of S KMNCO can facilitate potassium ion transport. The hierarchical structure of S KMNCO can withstand high stress during cycling. S KMNCO shows better rate capability and cycling stability. S KMNCO exhibits higher volumetric energy density. |
S1385894719331511 | Polyetheretherketone is a biocompatible polymer but the poor bacteria resistance and bioactivity have hampered its wider application to orthopedics . Inspired by the natural antibacterial structure on insect wings cone pillar like micro nano arrays are fabricated controllably on PEEK by colloidal lithography and plasma etching and the resulting bacterial resistance and biocompatibility are investigated . The surface engineered PEEK possesses enhanced antibacterial properties and the underlying mechanism depends on the surface topography and dimensions of the surface structures . With regard to the microarrays both the early mechanical stretching effect and subsequent dimensional effect contribute to the overall antibacterial effects . On the other hand the nanoarrays that mimic cicada wings kill bacteria solely by the penetration effect . Enhanced proliferation of osteoblasts is also observed from the modified PEEK rendering it suitable for implant materials . The antibacterial principles concluded from this work provide insights into the design and fabrication of bio inspired biomaterials with improved bacteria resistance and biocompatibility . | Different micro and nano structured polyetheretherketone PEEK arrays are prepared. The antibacterial behavior depends on the topography. Stretching distortion is triggered to prevent self adjustment of bacteria. The hybrid structures cause physical distortion of bacteria. The arrays improve the bioactivity of PEEK. |
S1385894719331535 | Effective removal of ammonia from air at room temperature is rarely reported by photocatalysis PEC or PEC MFC but realized by a Sn doped V | Catalyst activity of V. is increased by optimal Sn doping. Average NH. removal rate in PEC and PEC MFC is about 4 and 8 times PC. Oxygen vacancies generate active species for NH. decomposition. High surface area and rich pores caused fast NH. adsorption. |
S1385894719331547 | Methane partial oxidation by a catalytic membrane reactor is a promising process by integration of oxygen separation and catalytic reaction to produce syngas an important feedstock for downstream processes . However high methane conversion and syngas yield require high temperature operation due to dry steam reforming involvement which leads to high energy consumption and poor catalyst stability . In this study a novel asymmetric membrane reactor incorporated with a catalyst layer of enriched oxygen vacancy was designed for direct partial oxidation of methane to syngas . A composite of Sm | Asymmetric membrane reactor achieved high syngas yield at reduced temperature. Oxygen vacancies was introduced in catalyst layer to activate oxygen species. Active lattice oxygen is proportional to oxygen vacancies and Sm. Ce. ratio. The catalytic mechanism is suggested to be dominated by direct partial oxidation. |
S1385894719331560 | Superhydrophobic surfaces have drawn a lot of interest in both academic and industry by its special wettability but most artificial SHSs suffer from their poor hydrophobic and mechanical durability . Here a durable PVDF FAC SiO | A novel superhydrophobic coating was successfully prepared by designing micro eggshell and web like structures. The locked gas of egg shell and web like can enhance the hydrophobic stability of the coating surface. The PVDF FAC SiO. CNF coating can withstand hot water immersion or 98 H. SO. dumped. The prepared coating possesses high charge transfer resistance 1.4410. cm. after 30d immersion. |
S1385894719331572 | In the present study we developed an intelligent coating for the corrosion protection of mild steel . A novel hybrid hydrogel of | A novel hybrid hydrogel of. PEI was synthesized by one pot synthesis method. The releasing rate of. PEI rises upon external pH values due to its pH sensitivity. The smart coating based on. PEI can provide strong corrosion protection. |
S1385894719331584 | Membrane based processes are increasingly applied in shale gas flowback and produced water reuse . However severe membrane fouling remains a big challenge for maintaining long term operation . The present paper investigates for the first time the performance of the integrated ozonation ultrafiltration reverse osmosis process to treat SGFPW for water reuse . Results showed that pre ozonation could efficiently mitigate membrane fouling . The integrated process removed more than 98 of total dissolved solids 96 of dissolved organic carbon and 96 of all ionic constituents in SGFPW . Significantly the effluent could meet the water quality standards of irrigation livestock water and surface discharge . Removal of targeted pollutants is negatively influenced by the high concentrations of chloride and bromide because of their high reactivity with ozone and hydroxyl radicals HO | Ozonation is combined with membrane process to efficiently reuse SGFPW. Effluent of process is suitable for irrigation livestock and surface discharge. The mechanism of poor efficiency of ozonation in treating SGFPW is firstly proved. Pre ozonation decreased TFI and HIFI by 8595 and 4659 respectively. |
S1385894719331596 | Photoelectrochemical water splitting can convert solar power into clean energy carrier of hydrogen which is a promising strategy to address the global energy crisis and environmental issues . At present the sluggish kinetics of the separation and migration of the photo excited electrons and holes for water oxidation is the bottleneck for the high solar to hydrogen efficiency in this field . Herein we exploit cobalt polyoxometalate as a novel molecular cocatalyst locating at N doped carbon to boost the charge separation and injection of BiVO | Ternary BiVO. N C CoPOM photoanode is constructed. High photocurrent density of 3.30mAcm. and low onset potential are achieved. Much higher applied bias photon to current efficiency and fill factor are achieved after depositing CoPOM. Charge injection efficiency is greatly improved after depositing CoPOM. |
S1385894719331699 | Amorphisation using mesoporous inorganic carriers represents an emerging formulation strategy for the dissolution rate enhancement of poorly water soluble Active Pharmaceutical Ingredients . This approach employs API loading to a porous carrier which stabilises the amorphous form and prevents recrystallisation due to spatial confinement in the mesopores . In this work we utilise recently discovered silica particles with a unique pore structure that contain well connected macropores for rapid capillary transport of the molten API alongside mesopores for efficient drug amorphisation . We demonstrate that these particles enable efficient drug loading by a solvent free process namely hot melt impregnation in a fluidised bed reactor . By controlling the process temperature and therefore the melt in rate of the API we show that the co fluidisation of the API source crystals and silica carrier particles is possible without wall build up or agglomeration . Using ibuprofen as a model API we systematically investigate the effect of drug loading and process conditions on the physico chemical and dissolution properties of the product . The amorphous content of the silica particles after drug loading was established by DSC and XRPD and the chemical stability was confirmed by FTIR spectroscopy . More than a five fold dissolution rate enhancement compared to crystalline API was achieved by fluid bed amorphisation . | Solvent free process for converting crystalline drug to amorphous form. Successful co fluidisation of ibuprofen and mesoporous silica particles. No recrystallisation for drug loadings up to 50 wt. Exceptional dissolution rate enhancement at both acidic and neutral pH. |
S1385894719331821 | Three kinds of GO based Z scheme photocatalytic materials were synthesized to remove harmful algae and Microcystins LR . The physicochemical properties of the photocatalysts were characterized . The inhibitory effects of three photocatalysts on the growth of algae under visible light were compared . The photocatalytic degradation pathways and mechanism of MC LR by Ag | Three visible light driven GO based Z scheme photocatalysts were synthesized. Photocatalysts were used to simultaneously remove algae and photodegrade MC LR. Kinetics path and mechanisms in the photodegradation process of MC LR were studied. Effects and mechanisms of harmful algae inactivation by Ag. CO. GO were investigated. |
S1385894719331833 | This manuscript describes an efficient and cost effective method to remove heavy metals of Hg and Cd in aqueous solutions via adsorption on activated carbon fibers after modification with NaOH solution . The Hg and Cd metals in the aqueous solution exist as Hg | NaOH modified activated carbon fiber removes to heavy metals cost effectively. The NaOH modification induced abundant oxygen functional groups in micropore. Heavy metals adsorbed by a polar oxygen functional groups and pore filling mechanism. |
S1385894719331845 | This paper describes a novel approach for enhancing membrane technology for the removal of heavy metal cations in contaminated waters . A simple method of forming a positively charged polyamide nanofiltration membrane has been developed by attaching a layer of hyperbranched polyethylenimine to the PA surface involving the linking of PEI amino groups to the PA surface carboxyl groups . The nature of the PEI modified PA membrane in terms of surface morphology zeta potential and hydrophobicity was found to depend on the PEI molecular weight and the PEI concentration and membrane exposure time during preparation . In turn the nature of the modified membrane determined its performance in terms of hydraulic flux and metal ion rejection . In tests using a model solution of 5mg L Cu | The surface charge of a PA membrane was modified by PEI coating from negative to positive. The Cu. rejection was increased dramatically from 38.9 to 92.5. The membrane performance depended on the PEI molecular weight and preparation method. The presence of humic acid did not have an adverse effect on Cu. rejection. |
S1385894719331882 | Exploring inexpensive and efficient adsorbents is highly desirable for addressing water contamination issues . To overcome the inherent engineering drawbacks of nanostructured adsorbents a hierarchical hybrid membrane constructed by amorphous FeOOH nanosheets grown on carbonized bamboo has been successfully fabricated within several minutes via a facile electrodeposition process . Thanks to abundant binding sites amorphous nature of ultrathin FeOOH NSs and excellent pore accessibility the optimized FeOOH NSs CB membrane exhibits superior As sequestration capability in high removal efficiency fast kinetics and strong anti interfering performance . Significantly the optimized FeOOH NSs CB hybrid membrane can be directly utilized as an efficient filter unit to continuously treat 1160mL of As contaminated water to below the permitted threshold in drinking water accompanied by as high as 1528.7Lm | Amorphous FeOOH nanosheets were grown on carbonized bamboo via a facile electrodeposition method. The fabricated FeOOH NSs CB composite were utilized as filter membrane for As III removal. Superior As III sequestration performance were achieved under both static and continuous flowing modes. As III removal mechanism was systematically investigated. |
S1385894719331894 | Considering the global production of banana a large amount of banana peel waste is being generated world widely . Thus pyrolysis of BP was investigated to develop a technically reliable platform for the simultaneous waste management and energy recovery . To synergistically increase the sustainability of BP pyrolysis this study adopted carbon dioxide CO | Valorization of banana peel to energy as a form of syngas was achieved by pyrolysis. Banana peel pyrolysis in CO. produced more than 20 times of CO comparing to N. CO. cofeed pyrolysis manipulated biocrude composition and biochar morphology. CO. was changed into fuel via a sustainable thermolytic platform of food waste. |
S1385894719331900 | Scaffolds with antioxidant capability have attracted considerable interests for wound healing . For enhanced wound healing new antioxidant materials are still highly needed . In this study new antioxidant materials arginine derivatives were introduced into dopamine functionalized hyaluronic acid to develop novel hydrogels with enhanced antioxidant activity . The HA DA AD hydrogels showed greater DPPH and hydroxyl radical scavenging rates than the HA DA hydrogel . Moreover the HA DA AD hydrogels exhibited significantly better protection for cells against external oxidative stress and better wound healing . This study confirmed that AD could assist wound healing scaffolds to have enhanced antioxidant properties . | Enhance antioxidant activity of hydrogel is a promising way for wound healing. The well designed hybrid hydrogel is natural and simple. Arginine derivatives enhance the dopamine antioxidation for hyaluronic acid hydrogel. |
S1385894719332012 | To address the biological or pathological barriers the self propulsion abilities of drug carriers may bring distinct improvements when compared to passive diffusion . In the current study bacteria propelled microtubular rockets are proposed to enhance the extravasation from blood circulation penetration in the tumor matrix and intracellular drug uptake . Microtubes with loaded doxorubicin MT | Microrocket is constructed by assembly of one bacterium as the bioengine into a microtube. Microtubes are fabricated by layer by layer assembly of alginate and chitosan in porous template. Bacteria drive the rocket like directional motion of microtubes in both water and viscous media. Microrockets enhance the blood tumor tissue extravasation and internalization into tumor cells. Demonstrate a novel strategy to combat multiple biological barriers in the drug delivery pathway. |
S1385894719332036 | Incorporation of nanoscale colloidal objects into three dimensional hydrogel networks can not only reinforce the hydrogels as colloidal cross linkers but also add many extra functionalities for diverse applications . For the first time deformable droplets of liquid metal in combination with sonication were suggested to be able to initiate and gel acrylic acid via a facile sonication procedure with comparison to many inert rigid solid nanofillers . The LM droplets were also stabilized by the resultant hydrogel shells . Besides softness stretchability and notch insensitive toughness the LM droplets also offered moldability as well as an exceptional self healing property by releasing active radicals and ionic cross linkers of Ga | For the first time liquid metal is found to be able to initiate free radical polymerization of AA. Liquid metal droplets can sustained generate Ga. and cross link PAA into hydrogels as colloidal cross linkers. The ionic hydrogel combines mechanical robustness self recovery and conductivity. The sensing capability for strain is determined. |
S1385894719332085 | Although oxidation and advanced oxidation can degrade malathion from water unfortunately it is generally transformed into more toxic products such as malaoxon . In the present study a new approach has been proposed for the degradation and detoxication of malathion in aqueous solution using a combined process of chlorination followed by alkaline hydrolysis . The possible transformation pathway was proposed after identification of the main intermediate products using ultra performance liquid chromatography electrospray tandem mass spectrometry . The results showed that on average 90.3 of malathion was transformed into malaoxon during chlorination via a desulfurization reaction . After that in the subsequent hydrolysis reaction malaoxon was decomposed to malaoxon monoacid and diethyl 2 mercaptosuccinate via a carboxyl ester hydrolysis and a competing elimination reaction respectively . At the same time toxicity assessment of the treated solutions during the whole treatment process was performed based on the inhibition of acetylcholinesterase . It was found that during chlorination the toxicity index | Chlorination hydrolysis processes can detoxicate malathion completely in water. Hydrolysis of malaoxon at high pH was over 4 times faster than that of malathion. Real water matrices had almost no effects on the chlorination hydrolysis processes. Both the oxidation and hydrolysis processes followed pseudo first order kinetics. |
S1385894719332097 | Highly stretchable supercapacitors are next generation energy storage systems with both high electrochemical performance and excellent mechanical properties under harsh conditions . In this study we fabricate three dimensional porous stretchable supercapacitor with wrinkled structure poly poly on a 3D porous reduced graphene oxide coated elastic substrate under pre strained conditions via a simple solution process . The stretchable supercapacitor exhibits an electrochemical energy capacity up to 82.4Fg | Wrinkled PEDOT PSS reduced graphene oxide electrode is coated on an elastic 3D porous skeleton. Electrochemical energy capacity up to 82.4Fg. and 85.1 capacitance retention at 300 strain. Structure design improves the stability of mechanical stretching releasing during the electrochemical cycles. High power and energy density can be obtained. The supercapacitor shows excellent stretchability. |
S1385894719332103 | Ti based oxides have attracted extensive attention as promising lithium intercalated materials for hybrid capacitors . However the low electronic conductivity and sluggish lithiation dynamics hinder their performance including reversible capacity rate capability and cycle stability . Herein we report a kind of quasi layered titanate hydrates deriving from the dehydration induced structural rearrangement of Ti O octahedra and their superior electrochemical performance in the quasi solid state Li ion capacitors . As predicted by Mulliken charge analysis the surrounding O atoms will transfer electrons to the central Ti atoms accompanying with the detachment of bonding OH groups . The resulting unpaired 3 | Quasi layered titanates with superior Li ion storage performance have been proposed. The Q TH anode is equipped with fast Li ion diffusion and lower activation barriers. The structural rearrangement induces the charge redistribution between O and Ti atoms. The quasi solid state LICs present impressive energy density and cycle stability. |
S1385894719332139 | Due to their high activity and selectivity single atoms based catalysts for oxygen removal and wastewater treatment have received enormous attentions in academia and industry . The present work sought to extend the single atom catalyst concept to NO decomposition . A series of catalysts with highly dispersed iron nanoparticles embedded in carbon nanotubes grown on a ZSM 5 zeolite were prepared using an induced growth method by pyrolysing melamine and ferric nitrate precursors impregnated on ZSM 5 at 900C . The catalysts were then tested for their catalytic activity in NO decomposition using a fixed bed reactor operating at 300C and were shown to be able to completely decompose NO under the test conditions . X ray diffraction X ray photoelectron spectroscopy scanning electron microscope BET Raman and temperature programmed oxidation were used to study the effects of molar ratio of ferric nitrate to melamine on the active species sample structures and NO decomposition mechanism . An increase in the molar ratio of melamine to iron nitrate led to an improvement to the dispersibility of iron nanoparticles and enhancement of NO decomposition . The use of ZSM 5 increased the dispersion of iron thus enhancing the catalytic decomposition of NO . The characterisation of the used catalysts revealed that it was possible to regenerate the catalytic activity by doping and pyrolysing the deactivated catalysts with melamine with no significant difference to that of the fresh catalysts . | High dispersed Fe. nanoparticles in CNT grown on ZSM 5 as NO decomposition catalyst. The Fe. in CNT catalysts were shown to be able to achieve 100 NO decomposition. ZSM 5 promoted CNT growth increased Fe dispersion and enhanced NO decomposition. Oxidation of carbon in CNT by NO identified as the cause for catalyst deactivation. Melamine treatment of deactivated catalysts restored the catalytic activity. |
S1385894719332218 | This study reports on synergy between Dielectric Barrier Discharge plasma and calcium oxide as a catalyst for the Reverse Water Gas Shift . Any effect of the presence of the catalyst on the contribution of plasma chemistry i.e . chemical conversion in the plasma is minimized by using a fixed bed of Al | Synergy between plasma and calcium oxide for Reverse Water Gas Shift is found at low temperatures. Kinetic description allows quantification of synergy. Changes in plasma properties and plasma chemistry are minimized by reactor optimization. Synergy caused by new plasma catalytic pathway with plasma activated species. |
S1385894719332231 | In this study the adsorption properties of Cu and tetracycline onto virgin and biofilm developed polyethylene microplastics were investigated in batch sorption experiments . PE microplastics were placed at sewage outlets for 20days to develop biofilm on their surface . The adsorption and desorption isotherms of Cu and TC were well fitted by the Freundlich model and revealed that biofilm could enhance the adsorption and stabilization of Cu and TC on microplastics . The linearity test of the film diffusion model in kinetic experiments suggested that the adsorption on virgin and biofilm developed microplastics was dominated by intra particle diffusion and film diffusion respectively . Compared with the virgin microplastics the adsorption of Cu and TC on biofilm developed microplastics was additionally affected by pH dependent complexation interactions in the biofilm and competition interactions . Cu pre adsorbed on the biofilm could be released into solution because of competition effects of TC . Fourier transform infrared spectroscopy and density functional theory further confirmed that the enhanced adsorption of TC on the biofilm could be attributed to the complexation of TC Cu and components in biofilm . This study illustrated that biofilms could enhance the role of microplastics in the Cu and TC migration by changing their adsorption properties on microplastics . | Co adsorption of Cu II and TC on PE microplastics with biofilm was first studied. Biofilm enhanced the adsorption and stabilization of Cu II and TC on microplastics. Competition and complexation interactions were involved in the adsorption process. Microplastics with biofilm act as carriers of heavy metals and antibiotics in water. |
S1385894719332255 | Sodium ion batteries have great potential for large scale energy storage applications due to geopolitical abundance of sodium resource . However the development of SIBs is hindered by the available anodes with high reversible capacity and long cycle life . Herein we report that micron sized Sn | Micron sized Sn. was prepared. high energy mechanical milling. Initial capacity of Sn. in diglyme based electrolyte is as high as 960.3 mAh g. Sn. shows a record capacity of 719.7 mAh g after 100 cycles. ICE of Sn. anode in diglyme based electrolyte reaches up to 89.8 . The superior sodium storage performance of Sn. is enabled by diglyme derived SEI. |
S1385894719332267 | The effect of oxygen volume fraction in the nitrogenoxygen mixture on the cumene hydroperoxide accumulation rate has been experimentally established in the cumene oxidation . A kinetic model of the cumene oxidation to cumene hydroperoxide has been developed and based on the radical chain kinetic scheme given by the reactions of non radical decomposition of cumene hydroperoxide . As a result of calculating the oxygen mass transfer rate from the nitrogenoxygen mixture to the reaction mixture it was shown that the oxygen mass transfer rate does not affect the rate of cumene hydroperoxide accumulation . This fact is confirmed by comparable values of the oxygen amount entering the reactor and the oxygen amount consumed as a result of the reaction . Based on the calculations using kinetic model it was shown that the cumene oxidation rate is determined by the amount of oxygen supplied to the reactor per unit time and not by the oxygen volume fraction in the nitrogenoxygen mixture on which the driving force of mass transfer depends . In this case the cumene oxidation runs at a highest rate when the oxygen concentration in the reaction mixture is at least half of the oxygen concentration in reaction mixture which corresponds to the equilibrium establishment between oxygen concentrations in liquid and gas phases . The concentration limit of this mode was established . | The rate constants of cumene oxidation reactions at 383 and 393K were found. Oxygen dissolution in cumene does not affect the cumene oxidation rate. Oxygen concentrations were found at which cumene oxidation runs at highest rate. The oxidation rate is maximum if less than half of the supplied oxygen is consumed. |
S1385894719332280 | Graphene modified polymer based silica aerogels are an emerging class of multifunctional material receiving a lot of attention for a wide range of applications such as sensors drug delivery and tissue engineering . The bimodal mesoporous structure of G PSAs is dictated during the gelation process and it can be tailored by optimizing material and processing parameters . In this study the main focus is to investigate the mechanism for the formation of the structure that furnished the aerogels with unique pore structures and superb mechanical properties . The dynamic structures along the fabrication process were assessed using advanced techniques such as rheometry dynamic light scattering small angle X ray scattering and pore structure analyzer . DLS and SAXS results support the notion that the gelation of polyvinyltrimethoxysilane yields a nonparticulate structure . A chemically induced spinodal decomposition phase separation was found to explain the collected data . The mass fractal dimension was found to be 1.8 confirming that the percolation theory can not be used to describe the gelation of both neat P VTMS and Graphene modified P VTMS . The findings showed that while adding GO to the formulation does not change the stoichiometric ratio of the gelation reaction it creates spatial hindrance that interferes with the reaction process delaying the gelation process . Conversely GnP provides a platform for the reaction that promotes the gelation process . However GO and GnP shows similar effects on bimodal mesoporous structure of aerogels although provides dramatically different surface areas . This dramatic difference roots in the open pore structure induced by GnP in P VTMS aerogels . The strategy of nanoplatelets exfoliation during the solgel transition by controlling pH opens a new avenue for producing G PSAs with an exceptionally high surface area up to 2100m | In dept study on the polymer orientation in the presence of graphene materials. Engineering of bimodal mesoporous structure during sol gel transition. The strategy of nanoplatelets exfoliation by controlling pH during gelation. graphene platelets contribution at the polymer graphene interface during gelation. Effect of GnP and GO on the surface area insulation and mechanical properties. |
S1385894719332309 | In the present study a phosphorylated polyacrylonitrile fiber adsorbent was rapidly prepared with microwave assisted method and further applied to capture U ions from aqueous solution . FTIR and SEM EDS characterizations confirmed the satisfactory grafting of phosphonic group on the surface of PAN fiber and the integrities of fiber were well preserved . The results indicated that MW assisted method exhibited much higher efficiency during the modification process in terms of shorter reaction time and higher phosphonic content as compared to conventional heating method . The physical property of the modified fiber was well maintained according to TGA DTA results . The kinetic and isothermal adsorption experiments confirmed that the uptake process of PAN | A phosphorylated PAN fiber was synthesized with MW assisted method. MW assisted method presents much higher efficiency as compared to conventional heating. The prepared PAN. Phos fiber exhibits selective adsorption ability for U VI . The maximum adsorption amount of PAN. Phos fiber for U VI reaches at 241.4mg g. PAN. Phos fiber shows satisfactory reusability for U VI extraction. |
S1385894719332322 | An excellent electromagnetic wave absorber with lightweight broad bandwidth and high efficiency absorption is urgently demanded for solving the EM interference pollution . A MnO | Multiscale. RGO hybrid composites were successfully synthesized. The morphology of MnONPs strongly depends on the post annealing temperature. The optimal. of composites reaches 54.04dB with the maximum EAB of 7.4GHz. The microwave response mechanism is analyzed. |
S1385894719332334 | This study investigates the degradation of a refractory emerging contaminant by a newly developed piezoelectric catalytic persulfate activation process . BaTiO | Persulfate can be activated by piezoelectron under low frequency ultrasound. SO. and. OHOH play critical role for IBP degradation in the US BTO PS system. US BTO PS maintains high piezo catalytic performance in authentic water matrix. |
S1385894719332346 | Catalytic performance of a heterogeneous cobalt based catalyst for advanced oxidative process correlates tightly with its structure and composition . The main objective of this study is to maximize the utilization and accessibility of cobalt sites while enhancing their activity and stability through rational structural and composition designs and thus to achieve an excellent performance for heterogeneous peroxymonosulfate activation . To this end a novel CoTiO | CoTiO. overlayer was formed on nanosheets assembled hierarchical TiO. nanospheres. Cobalt sites of CoTiO. TiO. showed a better activation ability than those of Co. CoTiO. TiO. was highly efficient in catalytic degradation of metronidazole. Plausible degradation pathways and catalytic mechanism were elucidated. Low cobalt leaching and excellent reusability were also achieved. |
S1385894719332383 | Alginate is a biopolymer extensively utilized in numerous applications . Hydrogel forming property chemical structure with hydroxyl and carboxylate moieties biocompatibility biodegradability and solubility of alginate in water have broadened up research perspectives in material and biomedical sciences . Study of alginate based nanoparticles nanoaggregates and nanofibers initiated recently . These materials have gained increased attention for their potential industrial and biomedical applications . The present review broadly describes the synthesis structural and physicochemical characteristics recent advancements of processing and functionalization of alginate based nanomaterials . The potential applications of alginate based nanomaterials in numerous fields such as drug delivery tissue engineering environmental remediation developing bioanalytical markers disinfectants and gene therapy are described . Existing limitations and solutions are underscored with future research scopes . The strategies employed in extracting alginates from algae fabrication methods of alginate based nanomaterial and the commonly used analytical techniques of characterizing nanomaterials are discussed . | Alginate is a renowned biopolymer extensively explored in nanomaterial research. Its a biocompatible hydrophilic polymer ideal for therapeutic applications. Alginate nanomaterials are mainly prepared by Ca. gelification ionotropic gelation. Major applications nanotheranostics nanoremediation and regenerative engineering |
S1385894719333054 | Supercapacitors are promising energy storage devices with high power density and long cycle life while the key challenge in the application is the fabrication of electrode materials with high surface area good conductivity and high stability . Heterostructures consisting of binary chemical compositions could achieve superior electrochemical performances by creating abundant heterointerfaces with more reaction active sites which could enhance the surface reaction kinetics and improve the conductivity . Meanwhile hollow microspheres with complex internal architecture have been widely studied in advanced energy storage devices due to their high specific surface area fast transportation of the electrolyte and prominent structural stability . Herein we propose a feasible synthetic method of heterogeneous Mn | The multi shelled architectures were prepared by a facile sacrificial template method. The Mn. MnS heterostructures were produced by subsequent selective sulfurization. The heterostructures and multi shelled architecture contribute synergistically. The obtained Mn. MnS exhibited a high specific capacitance of 744 F g |
S1385894719333510 | Metal free activation of peroxymonosulfate has been reported to be more efficient than peroxydisulfate due to the asymmetrical structure of PMS . However we report for the first time that the nitrogen doped porous carbon templated from graphitic carbon nitride exhibits unexpectedly higher catalytic activity in the activation of PDS than PMS as evidenced by 1.74 fold greater rate constant of NC 900 PDS 0.80min | N doped porous carbon was prepared using g C. as template and nitrogen source. NC 900 exhibits unexpectedly higher reactivity in the activation of PDS than PMS. NC 900 surpasses existing N doped carbon materials in persulfate activation. PMS activation on NC 900 involves PMS reduction and oxidation mainly producing. PDS activation on NC 900 consists in PDS reduction for the generation of. OH. |
S1385894719333698 | Photocatalyst performance largely depends on the arrangement of surface atoms especially nanomaterials . Herein we proposed a novel defect filled strategy by filling Bi defects on BiOCl surface with Pt | A novel defects filled strategy was exploited by filling Pt. into Bi defects of BiOCl. PtO Pt. BiOCl displays superior photocatalytic activity and stability. Pt. inside the lattice of BiOCl increasing the light absorption capacity. The defects filled mechanism was confirmed. |
S1385894719334151 | Synergistic Mn Al Fe impregnated rGO hybrid is developed and verified for arsenic remediation . Preliminary adsorption studies are observed through vibrational spectroscopy and morphological tools . Adsorption isotherms are fitted by Freundlich model multilayer sorption with a loading of 402mgg | MAF rGO hybrid is verified for better arsenic As remediation under visible light 420nm . Photo catalytic electrocatalytic synergised MAF rGO High photocurrent density 0.9mAcm. . XPS analysis confirmed the occurrence of redox reactions and ligand exchange phenomenon. CV studies provide the mechanism of electro sorption through reduction and sorption. Sustainable use of sludge as ultra high stable supercapacitor electrode 100 000 cycles . |
S1385894720300486 | The new family of 2D MXene materials has garnered considerable interest for future energy storage . However the sluggish ionic kinetics within the compact and dense MXene films are still the fundamental limitation to their electrochemical performance . Here flexible and free standing macroporous MXene thin films were fabricated by a facile strategy of incorporating polystyrene microspheres of various sizes as soft sacrificial templates followed by calcination . The obtained material possesses high macroporosity with three dimensional interconnected porous channels to promote electron transport within the electrode and to facilitate electrolyte accessibility without significantly affecting the density of the MXene films . Through appropriate engineering design and optimization the modified macroporous MXene films could not only achieve a high gravimetric capacitance of 506Fg | A series flexible and free standing macroporous MXene films were fabricated. The feeding amounts and the sizes of sacrificial templates were optimized. The modified MXene films show high capacitance of 506Fg. and 759Fcm. The assembled supercapacitor demonstrates a volumetric energy density of 15.1WhL |
S138589472030108X | In lithium sulfur batteries as a consequence of the highly complex reaction and degradation mechanisms materials and cell design have a critical impact on the performance . Subsequently Li S batteries receive significant research attention . In this report a comprehensive analysis on the effect of key factors on the battery performance namely the peak discharge capacity and the cycle life is conducted using machine learning . Data for 1660 cells from 353 papers in the literature are collected and analyzed via association rule mining . The analysis concludes that encapsulation material type and amount are critical for high capacities and enhanced cycle life . The use of structured carbons such as porous carbons or carbon nanotubes in encapsulated cathodes leads to superior battery performance . Likewise electrolyte design has a key influence on the battery performance particularly in electrolyte starved cells . The results confirm that the most promising pathway forward in Li S batteries is materials design predominantly design of encapsulation cathodes and electrolytes that succeed at low electrolyte to sulfur ratios and high sulfur loadings . | Machine learning association rule mining is performed for Li S batteries. Impact of key materials and cell design factors on PDC and cycle life is determined. Encapsulated Li S cathodes perform better both in terms of capacity and cyclability. Porous carbons CNT and specialized new materials are substantially superior. |
S1385894720301091 | Low cost and high safety aqueous zinc ion batteries show their potential application for a large scale energy storage system due to the high capacity and stable Zinc metal anode . Herein VO | VO. B RGO composites were prepared. a facile hydrothermal rout. VO. B RGO exhibited a capacity of 456mAhg. at 100mAg. The contribution of capacitive process leads to a remarkable rate ability. |
S1385894720301443 | Recovery of antimony from wastewater is desired . Deposition of Sb to metal Sb can occur via cathodic reduction which is limited for Sb reduction . Herein a UV sulfite assisted electrodeposition system was developed for the recovery of Sb as metal Sb . The hydrated electron e | Recovery of Sb V was achieved by e. assisted electroreduction. Over 95 of Sb V was recovered in the optimal conditions after reaction for 6h. Electrochemical reduction of Sb III to metallic Sb was exhibited. The recovery rate of 60 was achieved for practical Sb containing wastewater. |
S1385894720301662 | The novel structure of electrode materials with high conductivity large specific surface area and ultra high energy density is urgently needed to achieve high performance energy storage . Here a novel hierarchical CoFe | The. and. core shell nanoboxes were fabricated. The. electrode has high specific capacitance of 2040.8 F g. The. CNTs asymmetric supercapacitor can drive the toy car more than 15m. The. electrode own high energy density 164.72 Wh kg |
S1385894720302424 | Earth abundant and environmental friendly ceria with excellent redox ability rich surface oxygen vacancies and high oxygen storage capacity was wildly used as catalysts for NH | CeO. HAT owns enhanced oxygen vacancies and Brnsted acidity due to defect riched nano ceria and Al OH riched HAT. CeO. HAT inhibits NH. over oxidation via an occupation release of oxygen vacancies v. and hydroxyls OH . Both Eley Rideal and Langmuir Hinshelwood mechanisms exist in the NH. SCR reaction over CeO. HAT. CeO. HAT has renewable activity after SO. H. O treatment as Brnsted acidity increasing via CeO. sulfuration. |
S1385894720302813 | Heterogenous hydrogenations of high value chemicals are a widely used class of reaction that potentially benefit from the advantages continuous processing possesses . Trickle bed reactors offer a viable alternative to batch manufacture however further understanding of the interplay between hydrogen mass transfer and catalytic reaction is required to facilitate the uptake of such technologies . | Convection and mass transfer of H. into a film on a single 1 Pd C pellet were decoupled. Hydrogen uptake was significantly affected by dissolved hydrogen in the feed. A new two stage mass transfer model was developed and fitted to the uptake data. The model accounts for H. transfer over inert and catalytically active surfaces. Catalyst productivity in mol kg Pd increases if the G L surface area in m. kg Pd is increased. |
S1385894720302825 | The limiting features of existing ammonium recovery technologies such as pH dependency inefficient manufacturing and low removal capacity of ammonium sorbents limit their commercial application potential . To overcome these technical limitations we employed reactive extrusion as a sustainable alternative synthesis method to prepare cost effective ammonium sorbents based on starch copolymers . | Copolymers of starch AAm and AMPS were prepared by reactive extrusion within 5min. Solvent free copolymerization of CTS resulted in 93 conversion and 71 efficiency. The starch copolymer swelling behavior is comparable to that of synthetic hydrogels. The potential of the starch copolymers for ammonium removal from water is discussed. A monolayer adsorption capacity of 23mg g is recorded for these starch copolymers. |
S1385894720303028 | While an increasing number of superhydrophobic surfaces have been developed in the past two decades due to their tremendous application potential they generally suffer from low durability as their liquid repellency could be easily damaged by chemical or mechanical erosion . A promising route to address this issue is to design self healable superhydrophobic surfaces that can restore the liquid repellency upon external damage . Although several types of self healable superhydrophobic surfaces have been prepared by introducing healable polymers or migratable low surface energy materials these surfaces are limited by the requisite of external energy input to drive the healing process or long self healing time . Inspired by the self healing mechanism of wax secretion in natural plant leaves herein we report a unique self healing superhydrophobic poly | A novel self healing superhydrophobic PDMS C. composite surface is reported. The surface can recover its superhydrophobicity after severe plasma etching or physical damage. The surface mimics the self healing mechanism of wax secretion in natural plant leaves. The surface exhibits a remarkably fast self healing speed. |
S138589472030303X | In an attempt to attain synergistic therapeutic benefits and address various intrinsic limitations of the highly efficient black phosphorus quantum dots we fabricated poly | BPQDs and GA encapsulated polymeric nanoparticles are fabricated using the SCF technology. GA promoted the PTT efficiency of BPQDs by hampering the thermoresistance of cells. PA imaging guided synergistic PTT chemotherapy is achieved towards cancer ablation. |
S1385894720303053 | Photo immunotherapy taking advantages of the immunogenic cell death induced by photothermal therapy to facilitate the systemic anti tumor immunity has been exploited as a promising therapeutic approach for cancer . However this kind of | The BP based PTT was designed as necroptotic pathway for the first time. High necroptosis rates of tumor cells were attained using PTT regulation. The necroptotic cells exhibited considerable immunogenicity. The photo immunotherapy was performed on the bilateral 4T1 tumor bearing mice. |
S1385894720303326 | Up to date for the purpose of simplicity graphene based structures like nano porous carbons or carbon nanotubes have been widely utilized to investigate methane flow behavior inside shale organic nanopores . However realistic shale organic matrix is composed of kerogen molecules possessing complex amorphous structures and apparently different surface attributes compared with graphene based nanopore surface which will inevitably have a great impact on surface methane interactions and methane flow behavior . Current research works in terms of the graphene based material fails to capture the influence of kerogen surface and therefore can not accurately characterize nano confined methane flow behavior through realistic shale organic matter . Also shale organic nanopores with different kerogen types contain different surface compositions while its impact on methane flow capacity has not been reported yet . To bridge this knowledge gap this paper simulates the methane flow behavior through authentic kerogen based circular nanopores with the use of molecular dynamics for the first time . And a novel construction method was developed to generate kerogen based organic nanopores with desirable pore size and different kerogen types for MD simulation . Main results show that a decrease in pore size will contribute to the enhancement of adsorption capacity for nanopores and type III kerogen type II kerogen type I kerogen in terms of methane adsorption capacity b ratio of average methane density confined in nanopores to bulk gas density ranges from 1.2 to 2.6 which will decrease with the increase of the pressure and increase with decreasing pore size c Under shale geological condition the conventional theoretical model for nanoconfined gas flow will underestimate that of 0.41 time for type I kerogen based nanopores 0.59 time for type II kerogen based nanopores and 0.88 time for type III kerogen based nanopores . | Kerogen based nanopores with desirable pore size and kerogen types are constructed. MD is used to investigate methane behavior confined within kerogen based nanopores. Methane density distribution inside kerogen based nanopores is 3D heterogeneous. Methane flow capacity through realistic shale organic nanopores is underestimated. |
S1385894720303582 | Arsenic is one of the highly dangerous metalloid present in the polluted water its effective and economical removal is one of the major challenges to the researchers . It was planned to prepare hollow fiber membranes using polyphenylsulfone as a polymer cellulose acetate and cellulose acetate phthalate as additives with increased dosages of zirconium oxide ZrO | PPSU CA ZrO. and PPSU CAP ZrO. hollow fiber membranes were fabricated using phase inversion method. Membrane performance was improved by incremental dosages of ZrO. nanoparticle. Prepared membranes exhibited enhanced antifouling and arsenic removal tendency. PPSU CA ZrO. membrane demonstrated effective arsenic removal from aqueous solution. |
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