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Two-dimensional material separation membranes for renewable energy purification, storage, and conversion

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Green Energy & Environment 2021年第2期6卷 193-211页

作者： Liheng Dai Kang Huang Yongsheng Xia Zhi Xu State Key Laborutory of Chemical Engineering Schood of Chemical Engineering East China University of Science and Technology 130 Meilong RoadShanghai200237China State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical EngineeringNanjing Tech Universiy30 Puzhu Road(S)Nanjing211816China

The current energy crisis has prompted the development of new energy sources and energy storage/conversion devices. membranes, as the key component, not only provide enormous separation potential for energy purification but also guarantee stable and high-efficiency operation for rechargeable batteries and fuel cells. Remarkably, two-dimensional(2D) material separation membranes have attracted intense attention on their excellent performance in energy field applications, owing to high mechanical/chemical stability, low mass transport resistance, strict sizeexclusion, and abundant modifiable functional groups. In this review, we concentrate on the recent progress of 2D membrane and introduce 2D membranes based on graphene oxide(GO), MXenes, 2D MOFs, 2D COFs, and 2D zeolite nanosheets, which are applied in membrane separation(H2 collection and biofuel purification) and battery separators(vanadium flow battery, Li–S battery, and fuel cell). The mass transport mechanism, selectivity mechanism, and modification methods of these 2D membranes are stated in brief, mainly focusing on interlayer dominant membranes(GO and MXenes) and pore dominant membranes(MOFs, COFs, and zeolite nanosheets). In conclusion, we highlight the challenges and outlooks of applying 2D membranes in energy fields.

关键词： Two-dimensional materials membranes Separation New energy

Substrate matters:The influences of substrate layers on the performances of thin-film composite reverse osmosis membranes

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Chinese Journal of Chemical Engineering 2017年第11期25卷 1676-1684页

作者： Jie Li,Mingjie Wei YongWang State Key Laboratory of Materials-Oriented Chemical Engineering Jiangsu National Synergetic Innovation Center for Advanced MaterialsCollege of Chemical EngineeringNanjing Tech UniversityNanjing 210009China

Thin-film composite(TFC) reverse osmosis(RO) membranes are playing the dominating role in *** efforts have been put in the studies on the polyamide selective layers. However, the effect of the substrate layers is far less concerned. In this review, we summarize the works that consider the impacts of the substrates, including pore sizes, surface hydrophilicity, on the processes of interfacial polymerization and consequently on the morphologies of the active layers and on final RO performances of the composite membranes. All the works indicate that the pore sizes and surface hydrophilicity of the substrate evidently influence the RO performances of the composite membranes. Unfortunately, we find that the observations and understandings on the substrate effect are frequently varied from case to case because of the lack of substrates with uniform pores and surface chemistries. We suggest using track-etched membranes or anodized alumina membranes having relatively uniform pores and functionalizable pore walls as model substrates to elucidate the substrate ***, we argue that homoporous membranes derived from block copolymers have the potential to be used as substrates for the large-scale production of high-performances TFC RO membranes.

关键词： Reverse osmosis Thin-film composite Interracial polymerization Homoporous membranes Sobstrate effect

Recent developments in nanofiltration membranes based on nanomaterials

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Chinese Journal of Chemical Engineering 2017年第11期25卷 1639-1652页

作者： Yanli Ji Weijie Qian Yawei Yu Quanfu An Lifen Liu Yong Zhou Congjie Gao Center for Membrane and Water Science&Technology Ocean CollegeZhejiang University of TechnologyHangzhou 310014China Beijing Key Laboratory for Green Catalysis and Separation College of Environmental and Energy EngineeringBeijing University of TechnologyBeijing 100124China

Nanofiltration membranes are the core elements for nanofiltration process. The chemical structures and physical properties of nanofiltration membranes determine water permeability, solute selectivity, mechanical/thermal stability, and antifouling properties, which greatly influence the separation efficiency and operation cost in nanofiltration applications. In recent years, a great progress has been made in the development of high performance nanofiltration membranes based on nanomaterials. Considering the increasing interest in this field, this paper reviews the recent studies on the nanofiltration membranes comprising various nanomaterials, including the metal and metal oxide nanoparticles, carbon-based nanomaterials, metal–organic frameworks(MOFs), water channel proteins, and organic micro/nanoparticles. Finally, a perspective is given on the further exploitation of advanced nanomaterials and novel strategy for fabricating nano-based nanofiltration membranes. Moreover,the development of precision instruments and simulation techniques is necessary for the characterization of membrane microstructure and investigation of the separation and antifouling mechanism of nanofiltration membranes prepared with nanomaterials.

关键词： Nanofiltration Separation membranes Nanocomposite Nanomaterials

COMPETITIVE FACILITATED TRANSPORT OF ACID GASES IN MODIFIED CARRIER membranes

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Chinese Journal of Chemical Engineering 1996年第4期4卷 70-75页

作者：曾作祥薛为岚施亚钧华东理工大学化学工程研究中心上海

1 INTRODUCTIONMany attempts to develop semipermeable membranes for gas separation have beendone over the past twenty years [1,2].However,it is still difficult to prepare apolymer film which makes certain gas separation processed within range of being econ-omically and technically feasible,since most polymeric materials are relativelyimpermeable to *** transport concept which was first proposed

关键词： membrane separation gas separation facilited transport modified ion exchange membranes

Perspective of mixed matrix membranes for carbon capture

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Frontiers of Chemical Science and Engineering 2020年第3期14卷 460-469页

作者： Shinji Kanehashi Colin AScholes Graduate School of Engineering Tokyo University of Agriculture and TechnologyTokyo184-8588Japan Peter Cook Centre for Carbon Capture and Storage Research Department of Chemical EngineeringThe University of MelbourneMelbourne 3010Australia

Polymeric membrane-based gas separation has found wide applications in industry,such as carbon capture,hydrogen recovery,natural gas sweetening,as well as oxygen *** gas separation membranes are required to have high gas permeability and selectivity,while being cost-effective to *** matrix membranes(MMMs)have a composite structure that consists of polymers and fillers,therefore featuring the advantages of both *** effort has been made to improve the gas separation performance of MMMs as well as general membrane properties,such as mechanical strength and thermal *** perspective describes potential use of MMMs for carbon capture applications,explores their limitations in fabrication and methods to overcome them,and addresses their performance under industry gas conditions.

关键词： membranes polymeric mixed matrix impurities

Preparation and Characterization of Multi-layer Poly(arylene sulfide sulfone) Nanofibers membranes for Liquid Filtration

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Chinese Journal of Polymer Science 2019年第12期37卷 1248-1256,I0006页

作者： Zhen-Yan Liu Zhi-Mei Wei Xiao-Jun Wang Gang Zhang Sheng-Ru Long Jie Yang College of Polymer Science and Engineering Sichuan UniversityChengdu 610065China Analytical&Testing Center Sichuan UniversityChengdu 610064China State Key Laboratory of Polymer Materials Engineering Sichuan UniversityChengdu 610065China

Owing to the excellent filtration performance and low energy cost,polymeric nanofibers microfiltration(MF)membranes have attracted increasing ***(arylene sulfide sulfone)(PASS),as one of the structurally modified polymers based on poly-(phenylene sulfide)(PPS),has been selected as the raw material to fabricate nanofibers MF membranes via electrospun *** effects of PASS solution and the electrospinning processing parameters on the structural morphology of nanofibers were investigated in *** average diameter of PASS nanofibers was(296±46)nm under the optimal condition:polymer concentration of 0.27 g·m L^–1 PASS/DMI,applied voltage of 20 kV,and speed of collector drum of 300 r·min^–*** then the multi-layer PASS nanofibers MF membranes were fabricated from cold-pressing the optimized PASS nanofibers(as-prepared PASS nanofibers)*** morphology,porosity,pore size,mechanical properties,and surface wettability of the multi-layer PASS nanofibers MF membranes could be tuned by the layers of as-prepared nanofibers *** results demonstrated that the membrane with 6 layers(marked as PASS-6)exhibited the smallest porosity,smallest pore size,highest mechanical property,and best surface ***,the multi-layer PASS nanofibers MF membranes showed that the rejection ratio gradually increased,while the pure water flux decreased with increasing membranes *** PASS-6 membrane exhibited large water flux of 747.76 L·m^–2·h^–1 and high separation efficiency of 99.9%to 0.2μm particles,making it a promising candidate for microfilter.

关键词： Poly(arylene sulfide sulfone) Electrospinning Nanofibers membranes Microfiltration

Graphene-based membranes for pervaporation processes

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Chinese Journal of Chemical Engineering 2020年第7期28卷 1755-1766页

作者： Kecheng Guan Gongping Liu Hideto Matsuyama Wanqin Jin State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical EngineeringNanjing Tech UniversityNanjing 211816China Research Center for Membrane and Film Technology Department of Chemical Science and EngineeringKobe University1-1 RokkodaiNadaKobe 657-8501Japan

Two-dimensional graphene and its derivatives exhibiting distinct physiochemical properties are intriguing building blocks for researchers from a large variety of scientific *** graphene-based materials into membrane layers brings great potentials for high-efficiency membrane ***,pervaporation by graphene-based membranes has been intensively studied with respect to the membrane design and *** review aims to provide an overview on the graphene-based membranes for pervaporation processes ranged from fabrication to *** or chemical decoration of graphene-based materials is elaborated regarding their effects on the microstructure and *** mass transport of pervaporation through graphene-based membranes is introduced,and relevant mechanisms are ***,performances of state-of-the-art graphene-based membranes for different pervaporation applications are ***,the perspectives of current challenges and future directions are presented.

关键词： Graphene membranes Separation Pervaporation

Comparative study of different membranes as separators for rechargeable lithium-ion batteries

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International Journal of Minerals,Metallurgy and Materials 2013年第6期20卷 598-603页

作者： Hong-yan Guan Fang Lian Yan Ren Yan Wen Xiao-rong Pan Jia-lin Sun School of Materials Science and Engineering University of Science and Technology Beijing

membranes of polypropylene （PP）, PP coated with nano-A1203, PP electrospun with polyvinylidene fluoride- hexafluoropropylene （PVdF-HFP）, and trilayer laminates of polypropylene-polyethylene-polypropylene （PP/PE/PP） were comparatively studied. Their physical properties were characterized by means of thermal shrinkage test, liquid electrolyte uptake, and field emission scanning electron microscopy （FESEM）. Results show that, for the different membranes as PP, PP coated with nanowA1203, PP electrospun with PVdF-HFP, and PP/PE/PP, the thermal shrinkages are 14%, 6%, 12.6%, and 13.3%, while the liquid electrolyte uptakes are 110%, 150%, 217%, and 129%, respectively. In addition, the effects on the performance of lithium-ion batteries （LiFePO4 and LiNil/3Col/3Mn1/302 as the cathode material） were investigated by AC impedance and galvanostatic charge/discharge test. It is found that PP coated with A1203 and PP electrospun with PVdF-HFP can effectively increase the wettability between the cathode material and liquid electrolyte, and therefore reduce the charge transfer resistance, which improves the capacity retention and battery performance.

关键词： lithium-ion batteries membranes separators thermal stability electrochemical properties

PREPARATION OF ASYMMETRIC POLYETHERKETONE FLAT AND HOLLOW FIBER membranes FOR GAS SEPARATION USING ACETIC ACID BASED COAGULANTS

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Chinese Journal of Polymer Science 2008年第3期26卷 263-273页

作者：杨继萍 Philip J.Brown School of Material Science and Engineering Beihang UniversityBeijing 100083China School of Materials Science and Engineering Clemson UniversitySC29634USA

membranes for gas separation have developed significantly in the last twenty years,however,there is still a need for high temperature and chemically resistant membranes that exhibit good selectivity and gas *** study examines the fundamental properties of polyetherketone (PEK,a thermally stable and chemically resistant polymer) membranes prepared using concentrated sulphuric acid (98% H_2SO_4) as the ***-solvents used in the work included acetic acid,ethanol,methanol,glycerol,and water....

关键词： Polyetherketones membranes Gas permeation Internal coagulant effect Morphology