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Application of different fiber structures and arrangements by electrospinning in triboelectric nanogenerators

Chinese Journal of Chemical Engineering 2024年第5期69卷 177-191页

作者： Hebin Li Zifei Meng Dehua Wang Ye Lu Longlong Jiang Le Zhang Hanbin Wang Xiaoxiong Wang College of Physics Qingdao UniversityQingdao 266071China School of Physics and Electronic Engineering Jiangsu Normal UniversityXuzhouJiangsu 221000China Microsystem&Terahertz Research Center China Academy of Engineering Physics(CAEP)Chengdu 610200China Institute of Electronic Engineering China Academy of Engineering Physics(CAEP)Mianyang 621900China University-Industry Joint Center for Ocean Observation and Broadband Communication College of PhysicsQingdao UniversityQingdao 266071China Weihai Innovation Research Institute of Qingdao University Weihai 264200China Collaborative Innovation Center for Eco-Textiles of Shandong Province and State Key Laboratory of Bio-Fibers and Eco-TextilesQingdao UniversityQingdao 266071China

In recent years,nanogenerators(NGs)have attracted wide attention in the energy field,among which triboelectric nanogenerators(TENGs)have shown superior performance.Multiple reports of electrospinning(ES)-based TENGs have been reported,but there is a lack of deep analysis of the designing method from microstructure,limiting the creative of new ES-based TENGs.Most TENGs use polymer materials to achieve corresponding design,which requires structural design of polymer materials.The existing polymer molding design methods include macroscopic molding methods,such as injection,compression,extrusion,calendering,etc.,combined with liquid-solid changes such as soluting and melting;it also includes micro-nano molding technology,such as melt-blown method,coagulation bath method,ES method,and nanoimprint method.In fact,ES technology has good controllability of thickness dimension and rich means of nanoscale structure regulation.At present,these characteristics have not been reviewed.Therefore,in this paper,we combine recent reports with some microstructure regulation functions of ES to establish a more general TENGs design method.Based on the rich microstructure research results in the field of ES,much more new types of TENGs can be designed in the future.

关键词： Triboelectric nanogenerators Electrospinning Fiber microstructure regulation Nanomaterials Membranes Global optimization

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Nano-alumina@cellulose-coated separators with the reinforcedconcrete-like structure for high-safety lithium-ion batteries

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Chinese Journal of Chemical Engineering 2024年第4期68卷 83-93页

作者： Zhihao Yang Li Chen Jian Xue Miaomiao Su Fangdan Zhang Liangxin Ding Suqing Wang Haihui Wang Guangdong Provincial Key Lab of Green Chemical Product Technology School of Chemistry and Chemical EngineeringSouth China University of TechnologyGuangzhou 510640China Beijing Key Laboratory of Membrane Materials and Engineering Department of Chemical EngineeringTsinghua UniversityBeijing 100084China

Separators play a critical role in the safety and performance of lithium-ion batteries.However,commercial polyolefin separators are limited by their poor affinity with electrolytes and low melting points.In this work,we constructed a reinforced-concrete-like structure by homogeneously dispersing nano-Al_(2)O_(3)and cellulose on the separators to improve their stability and performance.In this reinforcedconcrete-like structure,the cellulose is a reinforcing mesh,and the nano-Al_(2)O_(3)acts as concrete to support the separator.After constructing the reinforced-concrete-like structure,the separators exhibit good stability even at 200C(thermal shrinkage of 0.3%),enhanced tensile strain(tensile stress of 133.4 MPa and tensile strains of 62%),and better electrolyte wettability(a contact angle of 6.5°).Combining these advantages,the cells with nano-Al_(2)O_(3)@cellulose-coated separators exhibit stable cycling performance and good rate performance.Therefore,the construction of the reinforced-concretelike structure is a promising technology to promote the application of lithium-ion batteries in extreme environments.

关键词： Alumina Nanomaterials Lithium-ion batteries Membranes Cellulose Reinforced-concrete-like structure

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Machine learning for membrane design and discovery

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Green Energy & Environment 2024年第1期9卷 54-70页

作者： Haoyu Yin Muzi Xu Zhiyao Luo Xiaotian Bi Jiali Li Sui Zhang Xiaonan Wang Department of Chemical Engineering Tsinghua University100084BeijingChina School of Materials Science&Engineering Tsinghua University100084BeijingChina Department of Chemical and Biomolecular Engineering National University of SingaporeSingapore117576Singapore

Membrane technologies are becoming increasingly versatile and helpful today for sustainable development.Machine Learning(ML),an essential branch of artiﬁcial intelligence(AI),has substantially impacted the research and development norm of new materials for energy and environment.This review provides an overview and perspectives on ML methodologies and their applications in membrane design and dis-covery.A brief overview of membrane technologies isﬁrst provided with the current bottlenecks and potential solutions.Through an appli-cations-based perspective of AI-aided membrane design and discovery,we further show how ML strategies are applied to the membrane discovery cycle(including membrane material design,membrane application,membrane process design,and knowledge extraction),in various membrane systems,ranging from gas,liquid,and fuel cell separation Membranes.Furthermore,the best practices of integrating ML methods and speciﬁc application targets in membrane design and discovery are presented with an ideal paradigm proposed.The challenges to be addressed and prospects of AI applications in membrane discovery are also highlighted in the end.

关键词： Machine learning Membranes AI for Membrane Data-driven Design

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Smart Membranes for biomedical applications

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Chinese Journal of Chemical Engineering 2022年第9期35卷 34-45页

作者： Lin-Bing Zou Jue-Ying Gong Xiao-Jie Ju Zhuang Liu Wei Wang Rui Xie Liang-Yin Chu School of Chemical Engineering Sichuan UniversityChengdu 610065China State Key Laboratory of Polymer Materials Engineering Sichuan UniversityChengdu 610065China

Smart Membranes with tunable permeability and selectivity have drawn widespread attention because of their unique biomimetic characteristics.Constructed by incorporating various stimuli-responsive materials into membrane substrates,smart Membranes could self-adjust their physical/chemical properties(such as pore size and surface properties)in response to environmental signals such as temperature,pH,light,magnetic field,electric field,redox and specific ions/molecules.Such smart Membranes show great prospects in biomedical applications ranging from controlled drug release to bioseparation and tissue engineering.In this review,three controlled release models realized by different designed smart Membranes are emphatically introduced,and then smart Membranes for biological separation and controlled cell culture are introduced and discussed respectively.At last,the existing challenges of smart Membranes for biomedical applications are briefly summarized,and future research topics are suggested.

关键词： Membranes Polymers Smart materials Controlled release Bioseparation Cell culture

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Charged modified tight ceramic ultrafiltration Membranes for treatment of cationic dye wastewater

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Chinese Journal of Chemical Engineering 2022年第1期35卷 267-277页

作者： Chen Zhao Yahan Ye Xianfu Chen Xiaowei Da Minghui Qiu Yiqun Fan State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical EngineeringNanjing Tech UniversityNanjing 211800China Nanjing Membrane Material Industry Technology Institute Co LtdNanjing 211800China

Tight ceramic ultrafiltration Membranes have been proven to exhibit good rejection performance for reactive dye wastewater at high temperatures because of their high thermal and chemical resistance.However,the application of ceramic Membranes for the treatment of cationic dye wastewater is challenging because of their surface charge.In this study,a ceramic membrane is modified by grafting aminosilane(KH-551)to enhance the positive charge of the membrane surface.The rejection performance of the charged modified ceramic membrane toward the methylene blue solution is significantly improved.The modification substance is bonded to the ceramic membrane surface via covalent bonding,which imparts good thermal stability.The modified ceramic membrane exhibits stable separation performance toward the methylene blue solution.Overall,this study provides valuable guidance for the adjustment of the ceramic membrane surface charge for treating industrial cationic dye wastewater.

关键词： Membranes Ultrafiltration Separation Modification Surface charge Dye wastewater treatment

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Development and application of bionic systems consisting of tumor-cell Membranes

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2022年第9期23卷 770-777页

作者： Tianjiao PENG Jun YAO Clinical Medical College Henan University of Science and TechnologyLuoyang471003China Department of Oncology the First Affiliated Hospital of Henan University of Science and TechnologyLuoyang471003China Epigenetics and Molecular Biology Laboratory the First Affiliated Hospital of Henan University of Science and TechnologyLuoyang471003China

Malignant tumors pose a serious threat to human health but during the past decade,great progress has been made in the treatment of tumors.The tumorcell membrane is well constructed and can be used to solve problems in tumor therapy.Tumor-cell Membranes exhibit not only high biocompatibility duc to their homology but also enhanced therapeutic ffects when combined with nanotechnology.Meanwhile,nanoma-tcrials show high selectivity,sensitivity,and clinical transformation potential.Enhanced immunotherapy or tumor vaccines have potential clinical application because of tumor-membranc surfacc-specific antigens.Several studies have confirmed the feasibility and ad-vantages of using tumorcell membrane incorporated nanosystems for tumor therapy.Considering all this,we focus in this review on the application of tumor-cell-membrane bionic platforms and,in the summary,provide ideas for new scientific developments.

关键词： Membranes tumor clinical

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Well-structured 3D channels within GO-based Membranes enable ultrafast wastewater treatment

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Nano Research 2023年第2期16卷 1826-1834页

作者： Huaqiang Fu Zhe Wang Peng Li Wei Qian Zixin Zhang Xin Zhao Hao Feng Zhugen Yang Zongkui Kou Daping He School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070China Hubei Engineering Research Center of RF-Microwave Technology and Application School of ScienceWuhan University of TechnologyWuhan 430070China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China School of Water Energy and EnvironmentCranfield UniversityCranfield MK430ALUK

Graphene oxide(GO)-based Membranes have been widely studied for realizing efficient wastewater treatment,due to their easily functionalizeable surfaces and tunable interlayer structures.However,the irregular structure of water channels within GO-based membrane has largely confined water permeance and prevented the simultaneously improvement of purification performance.Herein,we purposely construct the well-structured three-dimensional(3D)water channels featuring regular and negatively-charged properties in the GO/SiO_(2)composite membrane via in situ close-packing assembly of SiO_(2)nanoparticles onto GO nanosheets.Such regular 3D channels can improve the water permeance to a record-high value of 33,431.5±559.9 L·m^(−2)·h−1(LMH)bar−1,which is several-fold higher than those of current state-of-the-art GO-based Membranes.We further demonstrate that benefiting from negative charges on both GO and SiO2,these negatively-charged 3D channels enable the charge selectivity well toward dye in wastewater where the rejection for positive-charged and negative-charged dye molecules is 99.6%vs.7.2%,respectively.The 3D channels can also accelerate oil/water(O/W)separation process,in which the O/W permeance and oil rejection can reach 19,589.2±1,189.7 LMH bar−1 and 98.2%,respectively.The present work unveils the positive role of well-structured 3D channels on synchronizing the remarkable improvement of both water permeance and purification performance for highly efficient wastewater treatment.

关键词： graphene oxide Membranes wastewater treatment water channels charge-selectivity

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Helium extraction from natural gas using DD3R zeolite Membranes

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Chinese Journal of Chemical Engineering 2022年第9期35卷 122-129页

作者： Ping Zhang Chao Gong Tao Zhou Peng Du Jieyu Song Mengyang Shi Xuerui Wang Xuehong Gu State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical EngineeringJiangsu National Synergetic Innovation Center for Advanced MaterialsNanjing Tech UniversityNanjing 211816China

Helium(He)is commercially produced from natural gas by low-temperature condensation.The process is energy extensive because of the extremely low He concentration(<0.3%)and the operation at cryogenic temperature.Herein... 详细信息

Helium(He)is commercially produced from natural gas by low-temperature condensation.The process is energy extensive because of the extremely low He concentration(Membranes for He extraction from natural gas.

关键词： He extraction Zeolite Membranes He/CH_(4)separation Natural gas

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Regulatable pervaporation performance of Zn-MOFs/polydimethylsiloxane mixed matrix pervaporation Membranes

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Chinese Journal of Chemical Engineering 2022年第2期35卷 312-318页

作者： Guorong Wu Qiangwen Fan Wenjie Sun Zhiwu Yu Zhiqian Jia Jianguo Ma Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and Devices East China University of TechnologyNanchang 330013China Lab for Membrane Science and Technology College of ChemistryBeijing Normal UniversityBeijing 100875China State Key Laboratory of Nuclear Resources and Environment School of BiologyChemistry and Material ScienceEast China University of TechnologyNanchang330013China Jiangxi Province Key Laboratory of Synthetic Chemistry School of ChemistryBiology and Material ScienceEast China University of TechnologyNanchang 330013China Foshan(Southern China)Institute for New Materials Foshan 528247China

Pervaporation(PV)is an emerging separation technique for liquid mixture.Mixed matrix Membranes(MMMs)often demonstrate trade-off relationship between separation factor and flux.In this study,by changing the organic linkers(2-methyl imidazolate,imidazole-2-carboxaldehyde,2-ethyl imidazolate),ZIF-8,ZIF-90 and MAF-6 were prepared and filled in polydimethylsiloxane(PDMS)Membranes for dealcoholization of 5%(mass)n-butanol solution,and the Membranes properties and pervaporation performances were adjusted.Compared with the pure PDMS membrane,the addition of ZIF-8 resulted in a 9%increase in flux(1136 g·m^(-2)·h^(-1))and a 22.5%increase in separation factor(28.3),displaying antitrade-off effect.For the MAF-6/PDMS MMMs(2.0%mass loading),the pervaporation separation index(PSI)and separation factor were 32347 g·m^(-2)·h^(-1) and 58.6 respectively(increased by 34%and 154%in contrast with that of the pure PDMS membrane),and the corresponding permeation flux was 552 g·m^(-2)·h^(-1),presenting great potential in the removal butanol from water.It was deduced that the large aperture size combined with moderate hydrophobicity of metal–organic frameworks(MOFs)favor the concurrent increase in permeability and selectivity.

关键词： Pervaporation Biofuel Polydimethylsiloxane Membranes Metal-organic frameworks

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Tungsten incorporated mobil-type eleven zeolite Membranes: Facile synthesis and tuneable wettability for highly efficient separation of oil/water mixtures

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中国化学工程学报:英文版 2023年第8期60卷 242-252页

作者： Hammad Saulat Jianhua Yang Tao Yan Waseem Raza Wensen Song Gaohong He State Key Laboratory of Fine Chemicals Institute of Adsorption and Inorganic MembraneDalian University of TechnologyDalian 116024China Panjin Institute of Industrial Technology Dalian University of TechnologyPanjin 124221China Institute of Advance Study Shenzhen UniversityShenzhen 518060China

Tungsten (W) incorporated mobil-type eleven (MEL) zeolite membrane (referred to as W-MEL membrane) with high separation performance was firstly explored for the separation of oil/water mixtures under the influence of gravity.W-MEL Membranes were grown on stainless steel (SS) meshes through in-situ hydrothermal growth method facilitated with (3-aminopropyl)triethoxysilane (APTES) modification of stainless steel meshes,which promote the heterogeneous nucleation and crystal growth of W-MEL zeolites onto the mesh surface.W-MEL Membranes were grown on different mesh size supports to investigate the effect of mesh size on the separation performance of the membrane.The assynthesized W-MEL membrane supported on 500 mesh (25μm)(W-MEL-500) exhibit the hydrophilic nature with a water contact angle of 11.8°and delivers the best hexane/water mixture separation with a water flux and separation efficiency of 46247 L·m^(-2)·h^(-1)and 99.5%,respectively.The wettability of W-MEL Membranes was manipulated from hydrophilic to hydrophobic nature by chemically modifying with the fluorine-free compounds (hexadecyltrimethoxysilane (HDTMS) and dodecyltrimethoxysilane(DDTMS)) to achieve efficient oil-permselective separation of heavy oils from water.Among the hydrophobically modified W-MEL Membranes,W-MEL-500-HDTMS having a water contact angle of146.4°delivers the best separation performance for dichloromethane/water mixtures with a constant oil flux and separation efficiency of 61490 L·m^(-2)·h^(-1)and 99.2%,respectively along with the stability tested up to 20 cycles.Both W-MEL-500-HDTMS and W-MEL-500-DDTMS Membranes also exhibit similar separation performances for the separation of heavy oil from sea water along with a 20-fold lower corrosion rate in comparison with the bare stainless-steel mesh,indicating their excellent stability in seawater.Compared to the reported zeolite Membranes for oil/water separation,the as-synthesized and hydrophobically modified W-MEL Membranes shows competitive separation performances in terms of flux and

关键词： Corrosion Dodecyltrimethoxysilane Hexadecyltrimethoxysilane Membranes Oil/water separation Zeolite

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