Mixed-Matrix Membranes Containing Porous Materials for Gas Separation: From Metal–Organic Frameworks to Discrete Molecular Cages

• Published in: Engineering (Beijing, China) Vol. 23; no. 4; pp. 40 - 55
• Main Authors: Yang, Ziqi, Wu, Zhongjie, Peh, Shing Bo, Ying, Yunpan, Yang, Hao, Zhao, Dan
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01-04-2023; Joint School of the National University of Singapore and Tianjin University,International Campus of Tianjin University,Fuzhou 350207,China; Department of Chemical and Biomolecular Engineering,National University of Singapore,Singapore 117585,Singapore%Department of Chemical and Biomolecular Engineering,National University of Singapore,Singapore 117585,Singapore; Elsevier
• Subjects: Gas separation; Interfacial compatibility; Metal–organic cages; Metal–organic frameworks; Mixed-matrix membranes; Interfacial compatibility; Gas separation; Mixed-matrix membranes; Metal–organic frameworks; Metal–organic cages; Metal-organic frameworks; Metal-organic cages
• ISSN: 2095-8099
• DOI: 10.1016/j.eng.2022.07.022

Mixed-matrix membranes (MMMs), which combine porous materials with a polymeric matrix, have gained considerable research interest in the field of gas separation due to their complementary characteristics and cooperative activation. The tailorability and diversity of porous materials grant MMMs extendable functionalities and outstanding separation performance. To achieve the full potential of MMMs, researchers have focused on the rational matching of porous fillers with polymeric matrixes to achieve enhanced compatibility at the interfaces of these materials. In this review, we highlight state-of-the-art advances in combining metal–organic frameworks (MOFs) and metal–organic cages (MOCs) with polymeric matrixes to fabricate MMMs using different strategies. We further discuss the opportunities and challenges presented by the future development of MMMs, with the aim of boosting MMM fabrication with judicious material design and selection.