Huang Menghui, Wang Zhenggong, Jin Jian
College of Chemistry Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China.
Chem Asian J. 2020 Aug 3;15(15):2303-2315. doi: 10.1002/asia.202000053. Epub 2020 Mar 5.
Since the discovery of graphene and its derivatives, the development and application of two-dimensional (2D) materials have attracted enormous attention. 2D microporous materials, such as metal-organic frameworks (MOFs), covalent organic frameworks (COFs), graphitic carbon nitride (g-C N ) and so on, hold great potential to be used in gas separation membranes because of their high aspect ratio and homogeneously distributed nanometer pores, which are beneficial for improving gas permeability and selectivity. This review briefly summarizes the recent design and fabrication of 2D microporous materials, as well as their applications in mixed matrix membranes (MMMs) for gas separation. The enhanced separation performances of the membranes and their long-term stability are also introduced. Challenges and the latest development of newly synthesized 2D microporous materials are finally discussed to foresee the potential opportunities for 2D microporous material-based MMMs.
自从石墨烯及其衍生物被发现以来，二维（2D）材料的开发与应用已引起了极大关注。二维微孔材料，如金属有机框架（MOF）、共价有机框架（COF）、石墨相氮化碳（g-CN）等，由于其高纵横比和均匀分布的纳米孔，在气体分离膜中具有巨大的应用潜力，这有利于提高气体渗透性和选择性。本文综述简要总结了二维微孔材料的近期设计与制备，以及它们在用于气体分离的混合基质膜（MMM）中的应用。还介绍了膜增强的分离性能及其长期稳定性。最后讨论了新合成的二维微孔材料面临的挑战和最新进展，以预见基于二维微孔材料的混合基质膜的潜在机遇。
