Polycrystalline metal-organic framework (MOF) membranes for molecular separations: Engineering prospects and challenges
Polycrystalline metal-organic framework (MOF) membranes for molecular separations: Engineering prospects and challenges
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DOI：
10.1016/j.memsci.2021.119802
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发表时间：
2021-08-30
影响因子：
9.5
通讯作者：
Jeong, Hae-Kwon
中科院分区：
文献类型：
--
作者：
Hamid, Mohamad Rezi Abdul;Qian, Yutian;Jeong, Hae-Kwon
金属有机骨架（MOFs）由于其有序的多孔结构、易于合成和表面功能化的多功能性而吸引了基于膜的分离的显著研究兴趣。作为MOFs的一个亚类，沸石咪唑骨架（ZIFs）由于其易于形成高质量的膜和在烃类混合物分离中的潜力而引起了最多的研究关注。其他基于MOF的膜，如IRMOF、HKUST-1、MIL、UiO等，也被充分研究用于氢气纯化和碳捕获。在这篇综述中，我们总结了一个按时间顺序发展的MOF膜用于气体分离，重点是ZIF-8膜C3 H6/C3 H8分离。还综述了用于H2/CO2、CO2/CH 4和CO2/N2分离的其他MOF膜。在此之后，我们对工程挑战进行了全面的评估和评价，包括成本效益，模块设计以及工业规模放大的膜稳定性和再现性。最后，我们对该领域未来的研究和发展提出了我们的观点。
Metal-organic frameworks (MOFs), owing to their ordered porous structure, ease of synthesis, and versatility of surface functionalization have attracted significant research interests for membrane-based separations. Zeoliticimidazolate frameworks (ZIFs), a subclass of MOFs, have drawn the most research attention by virtue of their ease of forming high-quality membranes and potential in hydrocarbon mixture separations. Other MOF-based membranes such as IRMOFs, HKUST-1, MILs, UiOs, etc., were also well-studied for hydrogen purification and carbon capture. In this review, we summarize a chronological development of MOF membranes for gas separations, focusing on ZIF-8 membranes for C3H6/C3H8 separation. Other MOF membranes for H2/CO2, CO2/CH4, and CO2/N2 separations are also reviewed. Following this, we provide a thorough assessment and evaluation of the engineering challenges, including cost-effectiveness, module design, and membrane stability and reproducibility for industrial scale-up. Finally, we provide our point of view on future research and development in the area.