Pore engineering in covalent organic framework membrane for gas separation

Advanced Membranes Pub Date : 2022-01-01 DOI:10.1016/j.advmem.2022.100037

Zhou Qu , Chenyu Lai , Guangjin Zhao , Alexander Knebel , Hongwei Fan , Hong Meng

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引用次数: 6

Abstract

Covalent Organic Frameworks (COFs) have attracted significant interest as promising separation membrane materials for their well-organized porous system and highly ordered crystalline structure. However, compared with the molecular and ionic separation in liquid phase, the advance of the COF membrane in gas separation has been relatively slow. To achieve desirable gas separation performance, the pore size of the COF membrane is expected to be regulated into the gas molecule-selective region, and also the tuning of pore enviroment is of importance. This review focuses on the key progress of the pore regulation strategies for the COF membrane towards gas separation. We highlight the different design concepts for selective gas transport channels, and introduce the specific applications to elucidate the structure-performance relationship of the COF membrane. We discuss the critical challenges and opportunities faced by the COF membranes in the field of gas separation, aiming at guiding the direction of the future efforts and promoting their development.

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共价有机骨架膜气体分离孔工程

共价有机骨架(COFs)由于其良好的多孔系统和高度有序的晶体结构，作为一种有前途的分离膜材料而引起了人们的极大兴趣。然而，与液相中的分子分离和离子分离相比，COF膜在气相分离中的进展相对缓慢。为了获得理想的气体分离性能，需要将COF膜的孔径调节到气体分子选择区域，而孔环境的调节也很重要。本文综述了碳膜气体分离孔调控策略的研究进展。重点介绍了选择性气体输送通道的不同设计理念，并介绍了COF膜的具体应用，以阐明COF膜的结构-性能关系。讨论了COF膜在气体分离领域面临的关键挑战和机遇，旨在指导未来努力的方向，促进其发展。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Advanced Membranes

CiteScore

8.50

自引率

0.00%

发文量