Membrane Science and Technology

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Green solvent preparation of ZIF-8/PDMS mixed matrix membrane and
its preferential alcohol permeation performance

Authors： LI Zhang’an1,2, WANG Fengkai1,2, SHEN Mengxin1,2,
LI Jie1,2, WANG Naixin1,2, AN Quanfu1,2

Units： 1. State Key Laboratory of Materials Low-Carbon Recycling, Beijing University of Technology,
Beijing 100124, China； 2. Beijing Key Laboratory for Green Catalysis and Separation,
College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China

KeyWords： preferential alcohol-permeable membrane; PDMS; green solvent; ZIF-8; pervaporation membrane

ClassificationCode：TQ028

year,volume(issue):pagination： 2026, 46(3):53-64

Abstract：

Polydimethylsiloxane (PDMS) exhibits excellent membrane-forming properties and hydrophobic characteristics, making it an ideal material for the separation layer in alcohol-preferential pervaporation membranes. However, traditional PDMS membrane preparation processes often rely on organic solvents such as n-heptane for dissolution, which contradicts the principles of green chemistry. This study aims to develop a facile and green solvent approach for the preparation of PDMS composite membranes. The preparation process achieves a green and environmentally friendly membrane-forming process through a stepwise spin-coating technique using PDMS-crosslinking agent. To further enhance the separation performance of the membrane, porous metal-organic framework particles (ZIF-8) were introduced into the crosslinking agent to prepare a ZIF-8/PDMS mixed matrix membrane, which was then applied to the alcohol-preferential pervaporation separation process. Experimental results showed that at 60 ℃, the mixed matrix membrane exhibited excellent separation performance for a 5% ethanol/water mixture, with a permeation flux of 3.3 kg/(m2·h) and a separation factor of 9.5. Furthermore, the membrane demonstrated excellent stability during continuous testing for 96 hours. This study provides a new path for the green preparation of PDMS mixed matrix membranes and strong support for the sustainable development of pervaporation membrane separation technology.

Funds：

国家自然科学基金项目（22478012）

AuthorIntro：

第一作者简介：李张安（2000-），男，北京人，硕士研究生，研究方向为优先透醇渗透汽化膜分离技术.*通讯作者，E-mail: wangnx@bjut.edu.cn

Reference：

［1］Cheng X Q, Wang Z X, Jiang X, et al. Towards sustainable ultrafast molecular-separation membranes: From conventional polymers to emerging materials ［J］. Prog Mater Sci, 2018, 92: 83-93.
［2］Emirel S E, Li J, Hasan M M F. Membrane separation process design and intensification［J］. Ind Eng ChemRes, 2021, 60(19): 217-239.
［3］Liang B, He X, Hou J, et al. Membrane separation in organic liquid: Technologies, achievements, and opportunities ［J］. Adv Mater, 2018, 31(45): 1-12.
［4］Li Y, Thomas E R, Molina M H, et al. Desalination by membrane pervaporation: A review ［J］. Desalination, 2023, 547(45): 1-10.
［5］Zhou L, Li S, Chen L, et al. MOFs and COFs based pervaporation membranes for alcohols/water separation: A review ［J］. Sep Purif Technol, 2024, 330(45):1-9.
［6］徐国强,余江,王康,等.蒙脱石-聚二甲基硅氧烷复合膜制备及其乙醇/水分离性能［J］.化工学报,2007,58(2):391-395.
［7］李杰,王乃鑫,纪树兰.有机/无机杂化渗透汽化优先透醇膜研究进展［J］.化工进展,2014,33(11):2982-2990.
［8］徐一鸣,别清峰,李云蹊,等.有机聚合物渗透汽化膜研究进展［J］.膜科学与技术,2023,43(3):140-147.
［9］张国军,王乃鑫,李杰,等.乙烯基PDMS/PSf复合膜及其乙醇/水分离性能［J］.膜科学与技术,2016,36(4):103-109.
［10］Zhang Z, Liu Y, Wei X, et al. Engineering antifouling membrane with surface segregation agents bearing crosslinked low surface energy segments ［J］. J Membr Sci, 2024, 691(10): 1-10.
［11］Gan Z, Kong D, Yu Q, et al. Fabrication superhydrophobic composite membranes with hierarchical geometries and low-surface-energy modifications ［J］. Polymer, 2020, 211(8): 1-12.
［12］Chen Y H, Chen G, Lee D J. Synthesis of low surface energy thin film of polyepichlorohydrin-triazole-ols ［J］. J Colloid Interface Sci, 2020, 575: 52-63.
［13］Ong Y K, Shi G M, Le N L, et al. Recent membrane development for pervaporation processes ［J］. Prog Polym Sci,2016,57:1-31.
［14］Liu G, Jin W. Pervaporation membrane materials: Recent trends and perspectives［J］. J Membr Sci, 2021,636 :119557.
［15］Xu Y M, Tang Y P, Chung T S, et al. Polyarylethermembranes for dehydration of ethanol and methanol via pervaporation［J］.Sep Purif Technol, 2018,193:165-174.
［16］彭莉,吴政奇,王博轩,等.TMCS修饰MFI分子筛膜的制备及乙醇/水分离稳定性的研究［J］.化工学报,2021,72(1):569-577.
［17］Peng M, Vane L M, Liu S X. Recent advances in VOCs removal from water by pervaporation ［J］. J Hazard Mater, 2003, 98(1/2/3): 69-80.
［18］Qu Z T, Duan S Y, Li B B, et al. PDMS/PVDF microporous membrane with semi-interpenetrating polymer networks for vacuum membrane distillation ［J］. J Appl Polym Sci, 2017, 135(8): 1-12.
［19］Li J, Pan Y, Ji W, et al. High-flux corrugated PDMS composite membrane fabricated by using nanofiber substrate ［J］. J Membr Sci, 2022, 64(8): 1-12.
［20］Huang J, Hu Y, Bai Y, et al. Novel solar membrane distillation enabled by a PDMS/CNT/PVDF membrane with localized heating ［J］. Desalination, 2020, 48(9): 1-10.
［21］Huang G, Yang Q, Xu Q, et al. Polydimethylsiloxane coating for a palladium/MOF composite: Highly improved catalytic performance by surface hydrophobization［J］. Angew Chem, 2016, 55(26): 7505-7509.
［22］Park E J, Cho Y K, Kim D H, et al. Hydrophobic polydimethylsiloxane (PDMS) coating of mesoporous silica and its use as a preconcentrating agent of gas analytes［J］. Langmuir, 2014, 30(34): 10256-10262.
［23］Lin X, Zhang B, Yang Q, et al. Polydimethysiloxane modified silica nanochannel membrane for hydrophobicity-based molecular filtration and detection［J］. Anal Chem, 2016, 88(15): 7821-7827.
［24］Chang K S, Chung Y C, Yang T H, et al. Free volume and alcohol transport properties of PDMS membranes: Insights of nano-structure and interfacial affinity from molecular modeling ［J］. J Membr Sci, 2012, 417/418: 11-30.
［25］Rsler C, Aijaz A, Turner S, et al. Hollow Zn/Co zeolitic imidazolate framework (ZIF)and yolk-shell metal@Zn/Co ZIF nanostructures ［J］. Chem Eur J, 2016,22(10): 33-41.
［26］Zhao H, Xing Z, Su S, et al. Recent advances in metal organic frame photocatalysts for environment and energy applications ［J］. Appl Mater Today, 2020, 21(20): 1-11.
［27］Liu X, Shan Y, Zhang S, et al. Application of metal organic framework in wastewater treatment ［J］. Green Energy Environ, 2023, 8(3): 698-721.
［28］Duan C, Yu Y, Xiao J, et al. Water-based routes for synthesis of metal-organic frameworks:A review ［J］. Sci China Mater, 2020, 63(5): 67-85.
［29］Peng P,Shi B, Lan Y. Preparation of PDMS-silica nanocompositemembranes with silane coupling for recovering ethanol by pervaporation［J］. Sep Sci Technol, 2011,46(3):420-427.
［30］Sun D, Li B B, Xu Z L.Pervaporation of ethanol/water mixture by organophilic nano-silica filled PDMS composite membranes［J］.Desalination, 2013，322:159-166.
［31］Kustov L. New horizons in zeolites and zeolite-like materials ［J］. Crystals, 2020, 10(8):42-47.
［32］Offeman R D, Ludvik C N. Poisoning of mixed matrix membranes by fermentation components in pervaporation of ethanol［J］. J Membr Sci,2011,367(1/2):288-295.
［33］Zhan X, Lu J, Tan TT, et al. Mixed matrix membranes with HF acid etched ZSM-5 for ethanol/water separation:preparation and pervaporation performance［I］.Appl Surf Sci, 2012, 259:547-556.
［34］Song Y, Lan P C, Martin K, et al. Rational design of bifunctional conjugated microporous polymers ［J］. Nanoscale Adv, 2021, 3(17): 481-506.
［35］Dechnik J, Gascon J, Doonan C J, et al. Mixed-matrix-membranen ［J］.Angew Chem, 2017, 129(32): 39-45.

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