共价有机框架材料在分离膜制备中的应用研究进展  

Research progress on the application of covalent organic framework materials in the construction of separation membranes

作　　者：许方依 彭宇 宋君杰 苏保卫[1] XU Fangyi;PENG Yu;SONG Junjie;SU baowei(College of Chemistry&Chemical Engineering,Ocean University of China,Qingdao 266100,China)

机构地区：[1]中国海洋大学化学化工学院,青岛266100

出　　处：《膜科学与技术》2023年第5期136-149,共14页Membrane Science and Technology

摘　　要：共价有机框架(Covalent organic frameworks,COFs)是一类具有二维(2D)或三维(3D)结构的多孔晶体材料,近年来因其结构特点独特,在膜分离领域受到广泛关注.COFs材料的主要优点是,它们具有有序排列的孔道结构,且可以通过化学设计来调整其孔隙大小与特征.因此,将COFs材料引入分离膜的制备,有利于实现溶剂的快速传输与精确的分子筛分.本文首先简要介绍了COFs材料的特点及其常见制备方法,然后从COFs材料直接用于制膜、原位反应构筑COFs层和COF膜构筑的新进展这3个方面概述了以COFs材料为基础的膜的研究进展,并侧重介绍了原位反应构筑COFs分离层的方法.最后,说明了COF膜的优势和劣势,以及未来存在的机遇与挑战.Covalent organic frameworks(COFs)are porous crystalline materials with two or three dimensional structures that have gained widely attention with promising applications in membrane separation due to their unique structure.The main advantages of COFs materials are their orderly arranged pore structure,and their pore sizes as well as characteristics that can be adjusted by chemical design.Therefore,the application of COFs materials into the preparation of separation membranes is beneficial for rapid solvent transport and accurate molecular sieving.This paper first introduces the characteristics of COFs materials and the common methods of preparing COFs materials,then reviews the research progress of separation membranes which are based on COFs materials from three aspects:direct usage of COFs nanomaterials for membrane fabrication,in-situ reaction for constructing COFs layer,and new advances in COF membrane construction.Especially,this paper introduced the in-situ reaction to construct the COFs separation layer.In the end,the advantages and disadvantages of COF membranes,as well as the future opportunities and challenges are illustrated.

关 键 词：共价有机框架 膜分离 原位构筑 

分 类 号：TQ028[化学工程]