摘要
纳滤以其分离效率高、操作温和、适应范围广等特点,在缓解全球水资源危机方面一直备受关注。聚酰胺薄层复合纳滤膜是目前应用最广泛的纳滤膜产品,其分离性能主要受聚酰胺分离层性质影响。界面聚合是目前聚酰胺分离层的通用制备方法,但该反应过程存在反应速率快和结构难调控的问题。近年来,国内外研究学者在可控界面聚合制备聚酰胺薄层复合纳滤膜方面开展了大量研究工作。单体扩散控制是一种简单、高效、易于放大化生产的方法,成为该领域的研究热点。本文介绍了近年来针对单体扩散控制界面聚合制备聚酰胺薄层复合纳滤膜的研究进展,旨在揭示单体扩散控制对聚酰胺分离层结构和分离性能的影响规律,并为聚酰胺薄层复合纳滤膜的应用提供参考。
Nanofiltration,characterized by its high efficiency,mild operation,and strong adaptability,has always attracted much attention in alleviating the global water crisis.Thin-film composite polyamide nanofiltration membrane is the most applied nanofiltration membrane product.Its separation performance is mainly affected by the properties of the polyamide separation layer.Interfacial polymerization is the commonly used method for fabricating polyamide separation layer.However,the rapid reaction rate and difficulty for structure manipulation are the key problems in this method.Recent years,many works have been developed for the fabricating thin-film composite polyamide nanofiltration membrane.Monomer diffusion control is a simple,effective and scalable strategy for solving the above problem.This article presents the research progress in recent years on the preparation of nanofiltration membranes by regulating the monomer diffusion,aiming to revealing the mechanism for its effect on structure control and separation performances.It also tends to provide references for the application of laboratory membrane fabrication in practical scenarios.
作者
刘佳欢
王建强
刘富
LIU Jiahuan;WANG Jianqiang;LIU Fu(School of materials Science and Chemical Engineering,Ningbo University,Ningbo 315211,China;Ningbo Institute of Materials Technology&Engineering,Chinese Academy of Sciences,Ningbo 315201,China;Ningbo College of Materials Technology&Engineering,University of Chinese Academy of Sciences,Ningbo 315201,China)
出处
《膜科学与技术》
北大核心
2025年第4期194-205,共12页
Membrane Science and Technology
基金
浙江省领雁研发计划“高效选择性纳滤膜材料研发与应用”[2024C03284(SD2)]。
关键词
界面聚合
单体扩散
聚酰胺
纳滤膜
interfacial polymerization
monomer diffusion
polyamide
nanofiltration membrane
