Gas separation is an important separation process to many industries, and membrane separation using hollow fibre membranes (HFMs) has become one of the emerging technologies. In this article, the gas separation concepts, gas transport mechanism, and the fabrication and gas separation performance of HFMs including asymmetric HFMs, thin film composite hollow fibre membranes (TFC-HFMs), and mixed matrix hollow fibre membranes (MM-HFMs), are reviewed and discussed. Dope composition and spinning parameters directly influence the structure of HFMs and subsequently the gas separation performance of HFMs. The gas separation performance of TFC-HFMs can be improved by the design of the coating solution, surface modification, and the addition of both a gutter layer and a protective layer. Mixed matrix membranes (MMMs) have been intensively investigated in flat sheet membranes and the inspiring gas separation results have been obtained. Therefore, the incorporation of nanoparticles into hollow fibre membranes is a desirable solution to increase the gas permeability and selectivity simultaneously. The functionalization of nanoparticles and fabrication methods of MM-HFMs are also presented.

气体分离是许多行业的重要分离过程，使用中空纤维膜（HFM）进行膜分离已成为新兴技术之一。本文介绍了不对称HFM，薄膜复合中空纤维膜（TFC-HFM）和混合基质中空纤维膜（MM-HFM）组成的HFM的气体分离概念，气体传输机理以及制造和气体分离性能，进行审查和讨论。涂料的组成和纺丝参数直接影响HFM的结构，进而影响HFM的气体分离性能。TFC-HFMs的气体分离性能可以通过涂层溶液的设计，表面改性以及增加檐槽层和保护层来提高。在平板膜中对混合基质膜（MMM）进行了深入研究，并获得了令人鼓舞的气体分离结果。因此，将纳米颗粒掺入中空纤维膜是同时增加气体渗透性和选择性的理想解决方案。还介绍了纳米粒子的功能化和MM-HFMs的制备方法。