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功能化MOF基混合基质膜微环境调控策略

作者：张逸娟，宋春风，连少翰，李润，赵权，郭辉

单位：天津大学环境科学与工程学院，天津 300350

关键词： CO2捕集；膜分离；混合基质膜；金属有机框架；微环境

DOI号：

分类号：

出版年,卷(期):页码： 2023,43(1):165-173

摘要：

膜分离技术因其易操作、高效能、绿色环保等优点受到广泛关注。基于金属有机骨架(MOF)的混合基质膜由于具有造价低、分离性能优异等优点，在CO2分离过程中表现出巨大潜力。然而，MOF基混合基质膜仍然存在非理想形貌及分离机理单一等问题。本文从MOF功能化入手，总结了调控物理微环境、化学微环境及协同调控物理化学微环境策略，主要有改变MOF形貌尺寸、加入第三组分以及其他功能化策略；提出了物理化学微环境调控手段在膜分离CO2过程中的挑战；同时对未来气体膜分离技术的发展进行了展望。

In order to alleviate the environmental problems caused by the increase of CO2 concentration, many capture technologies have been applied to the CO2 capture process. Membrane separation technology has received extensive attention due to its advantages of easy operation, high efficiency, and green environmental protection. Metal-organic framework (MOF)-based mixed-matrix membranes show great potential in CO2 separation due to their low cost and excellent separation performance. However, MOF-based mixed-matrix membranes still suffer from problems such as non-ideal morphology and single separation mechanism. This paper starts with the functionalization of MOF, and summarizes the strategies for regulating the physical microenvironment, chemical microenvironment, and synergistically regulating the physical and chemical microenvironment, mainly including changing the morphology and size of MOF, adding a third component, and other functional strategies. Finally, the challenges of physical and chemical microenvironment regulation strategies in the process of membrane separation of CO2 are proposed, and the development of gas membrane separation technology in the future is prospected.

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作者简介：

张逸娟(1998-)，女，山西忻州人，硕士生，研究方向为混合基质膜在气体分离中的应用。

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