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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 *** 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/*** smart membranes show great prospects in biomedical applications ranging from controlled drug release to bioseparation and tissue *** 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 *** 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

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 ***,the irregular structure of water channels within GO-based membrane has largely confined water permeance and prevented the simultaneously improvement of purification ***,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 *** 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 *** 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%,*** 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%,*** 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

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 *** process is energy extensive because of the extremely low He concentration(<0.3%)and the operation at cryogenic *** we demonstrated DD3R zeolit... 详细信息

Helium(He)is commercially produced from natural gas by low-temperature *** 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

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 *** matrix membranes(MMMs)often demonstrate trade-off relationship between separation factor and *** 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 *** 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 *** 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 *** 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

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 *** 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%,*** 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 *** 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 *** 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 *** to the reported zeolite membranes for oil/water separation,the as-synthesized and hydrophobically modified W-MEL membranes shows competiti

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

The effect of protic ionic liquids incorporation on CO_(2) separation performance of Pebax-based membranes

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Chinese Journal of Chemical Engineering 2022年第3期35卷 169-176页

作者： Haiyan Jiang Lu Bai Bingbing Yang Shaojuan Zeng Haifeng Dong Xiangping Zhang CAS Key Laboratory of Green Process and Engineering State Key Laboratory of Multiphase Complex SystemsBeijing Key Laboratory of Ionic Liquids Clean ProcessInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China School of Future Technology University of Chinese Academy of SciencesBeijing 100049China Advanced Energy Science and Technology Guangdong Laboratory Huizhou 516003China

The separation of carbon dioxide(CO_(2))is of great importance for environment protection and gas resource *** ionic liquids(ILs)-based gas separation membrane provides a new chance for efficient CO_(2)separation,while high permeability and selectivity of membranes is a great *** this study,the influence of two protic ILs with different anion([TMGH][Im]and[TMGH][PhO])on the CO_(2)separation performance of the prepared ILs/Pebax blended membranes were systematically investigated at different *** results showed the CO_(2)permeability exhibits the rising trend for ILs/Pebax blended membranes with the increment of IL ***,the[TMGH][Im]with low viscosity and high CO_(2)absorption capacity leads to the blended membranes showing better CO_(2)permeability and ideal CO_(2)selectivity than that of membranes with[TMGH][PhO]at high IL ***,with operating temperature increasing,the gas permeability of 20%(mass)[TMGH][Im]/Pebax blended membrane increases due to the decreasing viscosity of IL and the rising chain mobility of ***,the gas selectivity shows decreasing trend because CO_(2)absorption capacity obviously decreased at higher temperature.

关键词： CO_(2) Protic ionic liquids membranes Pebax

Graphene quantum dots doped poly(vinyl alcohol)hybrid membranes for desalination via pervaporation

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Chinese Journal of Chemical Engineering 2023年第11期63卷 226-234页

作者： Yunyun Wan Lulu Yao Peng Cui School of Chemistry and Chemical Engineering Hefei University of TechnologyChina Anhui Province Key Laboratory of Controllable Chemical Reaction&Materials Chemical Engineering Hefei230009China

Pervaporation desalination by highly hydrophilic materials such as poly(vinyl alcohol)(PVA)based separation membrane is a burgeoning technology of late ***,the improvement of membrane flux in pervaporation desalination has been a difficult ***,a novel hybrid membrane with doped graphene oxide quantum dots(GOQDs)which is rich in hydrophilic groups and small size into the matrix of PVA was prepared to improve the membrane *** membranes structures were described by field emission scanning electron microscopy(FESEM),atomic force microscopy(AFM),Fourier transform infrared(FT-IR),differential scanning calorimetry(DSC),thermogravimetric analysis(TGA)and X-ray diffraction(XRD).And more,Water contact angle,swelling degree,and pervaporation properties were carried out to explore the effect of GOQDs in PVA *** addition,GOQDs content in the hybrid membrane,NaCl concentration,and feed temperature were investigated ***,the hydrogen bonds between PVA chains were weakened by the interaction between GOQDs and PVA ***,the hybrid membrane with optimized doped GOQDs content,200 mg·L^(-1),displays a high membrane flux of 17.09 kg·m^(-2)·h^(-1)and the salt rejection is consistently greater than 99.6%.

关键词： Pervaporation Desalination Graphene oxide quantum dots Poly(vinyl alcohol) membranes

Strategies in constructing covalent organic framework membranes for molecular sieving

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Science China Chemistry 2022年第5期65卷 836-839页

作者： Jie Li Shuang Zhao Bo Wang Xiao Feng Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster ScienceMinistry of EducationFrontiers Science Center for High Energy MaterialAdvanced Technology Research Institute(Jinan)School of Chemistry and Chemical EngineeringBeijing Institute of TechnologyBeijing 100081China

Membrane separation has emerged as one of the most economically and environmentally friendly technologies because of its low energy consumption,small footprint,and simple operation[1].

关键词： constructing separation membranes

Porous metal-organic cage-based membranes

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Science China Chemistry 2023年第8期66卷 2169-2180页

作者： Lei Jia Xianhui Tang Yong Cui Yan Liu School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong UniversityShanghai200240China

As a new class of porous solid materials with structural variability,notable porosity,and good dispersibility,metal-organic cages(MOCs)have shown great promise as filler components for separation *** into MOC-based membranes has blossomed over the last decade because of their high performance in separation,desalination,and artificial *** this review,we summarize current membranes based on MOCs including mixed matrix membranes,cross-linked membranes,composite membranes,bilayer lipid membranes,and liquid membranes,and provide a brief overview of their *** challenges and opportunities in future developments are also discussed.

关键词： metal-organic cage membranes separation desalination artificial channels