Zeolite imidazolate framework (ZIF)‐based mixed matrix membranes for CO2 separation: A review,Journal of Applied Polymer Science

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Zeolite imidazolate framework (ZIF)‐based mixed matrix membranes for CO2 separation: A review
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2020-01-22 , DOI: 10.1002/app.48968
Weixin Guan _{1,

2} , Yan Dai _{1,

2} , Chenyuan Dong ₂ , Xiaochen Yang ₂ , Yuan Xi ₂

Affiliation

Mixed matrix membranes (MMMs), which combine the good separation performance of inorganic materials with the low cost of polymers, have emerged as a research hotspot for gas separation membranes. Zeolite imidazolate frameworks (ZIFs) are widely used as fillers to prepare MMMs owing to their advantageous characteristics, such as adjustable pore channels, unsaturated sites, and easy functionalization. For MMMs, three directions can be employed as criteria for improvement compared with pristine polymeric membranes. In this article, the progress of ZIF‐based MMMs is reviewed from the aspects of sole‐ZIF‐based MMMs and modified ZIF‐based MMMs. Both strategies improve the separation performance through different improvement directions and mechanisms. Our analysis shows that the synergistic effect of the modified filler can change the structure of the membranes, such as by improving the filler–polymer interface voids, which provides a foundation to overcome the trade‐off effect to a certain extent. © 2020 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020 , 137 , 48968.

中文翻译：

基于沸石咪唑盐骨架（ZIF）的混合基质膜用于CO2分离：综述

混合基质膜（MMM）结合了无机材料的良好分离性能和低廉的聚合物成本，已成为气体分离膜的研究热点。咪唑型沸石骨架（ZIF）被广泛用作制备MMM的填料，这是由于它们的有利特性，例如可调节的孔道，不饱和位点和易于官能化。对于MMM，与原始聚合物膜相比，可以采用三个方向作为改进的标准。在本文中，从基于ZIF的唯一MMM和基于ZIF的修改型MMM的方面回顾了基于ZIF的MMM的进展。两种策略都通过不同的改进方向和机制来提高分离性能。我们的分析表明，改性填料的协同作用可以改变膜的结构，例如通过改善填料与聚合物的界面空隙，从而在一定程度上克服折衷效应奠定了基础。©2020 Wiley Periodicals，Inc. J.Appl。Polym。科学2020，137，48968。

更新日期：2020-01-22

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