FAU沸石分子筛膜的制备及渗透汽化研究进展  

Progress in preparation and pervaporation of FAU zeolite membranes

作　　者：王青 陈慧媛[1] 吴涵钰 刘峤 徐农 范茏 牛鑫蒲[3] 胡坤宏 WANG Qing;CHEN Huiyuan;WU Hanyu;LIU Qiao;XU Nong;FAN Long;NIU Xinpu;HU Kunhong(School of Energy,Materials and Chemical Engineering,Hefei University,Hefei 230601,China;State Key Laboratory of Materials-Oriented Chemical Engineering,Nanjing Tech University,Nanjing 211816,China;Department of Chemical Engineering,Hiroshima University,Hiroshima 739-8527,Japan)

机构地区：[1]合肥大学能源材料与化工学院,安徽合肥230601 [2]南京工业大学材料化学工程国家重点实验室,江苏南京211816 [3]广岛大学化学工程系,日本广岛739-8527

出　　处：《中国粉体技术》2024年第5期21-34,共14页China Powder Science and Technology

基　　金：国家自然科学基金项目,编号:22308076;安徽省自然科学基金项目,编号:2308085QB65;安徽省高校优秀青年科研项目,编号:2024AH030044;安徽省重点研究和开发计划项目,编号:2022a05020041;安徽省高校自然科学研究项目,编号:2023AH040305;安徽省高校优秀科研创新团队项目,编号:2022AH010096,2023AH010050;材料化学工程国家重点实验室开放课题项目,编号:KL21-04;南京共鸿科技有限公司技术开发项目,编号:902/22050123153。

摘　　要：【目的】faujasite(FAU)沸石分子筛膜作为重要的亲水性、大孔径(0.74 nm)的膜材料,在渗透汽化(pervaporation,PV)液体分离领域具有广阔的应用前景。促进FAU沸石分子筛膜的开发、应用,在PV领域的发展应得到重视。【研究现状】综述近年来FAU沸石分子筛膜的制备方法,包括原位合成法、干凝胶法、二次生长法、微波加热法等,分析各种方法的特点;探讨如何通过制备参数调控实现FAU沸石分子筛膜性能提升的策略;总结FAU沸石分子筛膜的PV分离机制,在PV领域的应用进展和所面临的挑战。【展望】有效制备无缺陷的FAU沸石分子筛膜,提高分离性能,应进一步聚焦于FAU沸石分子筛膜的制备方法创新、制备工艺优化和膜结构精密调控;FAU沸石分子筛膜有望在工业分离过程中发挥更大的作用。Significance FAU zeolite membranes have garnered substantial scientific and technological interest due to their potential in various separation processes,especially pervaporation.These membranes are notable for their high thermal stability,chemical resistance,and exceptional selectivity,making them promising candidates for applications in chemical processing,biomolecular sensing,and environmental protection.Specifically,the large pore size(0.74 nm)and high hydrophilicity of FAU zeolites enable effective separation of liquid mixtures,making them highly valuable for industrial applications such as the dehydration of organic solvents and wastewater treatment.The development of FAU zeolite membranes not only enhances separation efficiency but also offers a sustainable and energy-efficient alternative to traditional separation methods.Progress Over recent decades,significant advancements have been made in synthesizing and applying FAU zeolite membranes for pervaporation.Various synthesis methods,including in-situ synthesis,dry gel conversion,secondary growth,and microwave-assisted synthesis,have been explored to enhance membrane quality and performance.Optimization of synthesis parameters such as temperature,time,and gel composition has shown promising results in achieving defect-free membranes with high selectivity and flux.Techniques like ion exchange and 3-aminopropyltriethoxysilane(APTES)modification of tubular supports have further enhanced membrane properties.Furthermore,a deep understanding of the pervaporation separation mechanism of FAU zeolite membranes is crucial for elucidating the relationship between membrane structure and pervaporation performance,predicting suitable application systems,and achieving high separation efficiency.Most recently,researchers have investigated the pervaporation separation mechanism of FAU membranes through the relationship between single gas permeance,pervaporation permeance,and polarity index(affinity).The results indicated that within a similar range of permeate molecule siz

关 键 词：FAU分子筛膜 沸石 渗透汽化 分离机制 膜分离 

分 类 号：TB4[一般工业技术] O611.4[理学—无机化学]