化工进展 ›› 2019, Vol. 38 ›› Issue (01): 467-484.DOI: 10.16085/j.issn.1000-6613.2018-1094

• 材料科学与技术 • 上一篇    下一篇

金属有机骨架膜的制备与应用进展

周胜(),侯倩倩,魏嫣莹(),王海辉()   

  1. 华南理工大学化学与化工学院,广东 广州 510640
  • 收稿日期:2018-05-28 修回日期:2018-09-17 出版日期:2019-01-05 发布日期:2019-01-05
  • 通讯作者: 魏嫣莹,王海辉
  • 作者简介:周胜(1994—),男,硕士研究生,研究方向为金属有机骨架膜。E-mail:<email>zhou.sheng@mail.scut.edu.cn</email>。|魏嫣莹,研究员,硕士生导师,研究方向为膜分离技术。E-mail:<email>ceyywei@scut.edu.cn</email>|王海辉,教授,博士生导师, 研究方向为无机膜。E-mail:<email>hhwang@scut.edu.cn</email>
  • 基金资助:
    国家自然科学基金(21536005,51621001,21606086);广东省自然科学基金(2014A030312007,2017A030306002);广州市科技项目(201707010317);国家自然科学基金(21536005,51621001,21606086);广东省自然科学基金(2014A030312007,2017A030306002);广州市科技项目(201707010317)。

Recent progress on the preparation and applications of metal organic framework membranes

Sheng ZHOU(),Qianqian HOU,Yanying WEI(),Haihui WANG()   

  1. School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
  • Received:2018-05-28 Revised:2018-09-17 Online:2019-01-05 Published:2019-01-05
  • Contact: Yanying WEI,Haihui WANG

摘要:

膜分离技术因其高效节能的特点,被认为是最有前景的分离技术之一。由于众多待分离的混合组分在物理性质(如尺寸)上极为接近,实现精确的膜分离仍具有极大的挑战。金属有机骨架材料具有孔径精确可调、孔隙率高等优点,使其有望实现对尺寸相近分子的精确筛分,因此可以作为理想的膜材料。本文对传统的多孔膜材料进行了比较,并对基于金属有机骨架材料的多孔膜进行了分类,包括支撑型金属有机骨架膜和混合基质膜。同时,系统地总结了两大类金属有机骨架膜的制备方法及其发展历程,对先进的膜制备技术进行了展望;总结了金属有机骨架膜在气体分离、纳滤及海水淡化、渗透汽化等方面的应用。最后,针对支撑型金属有机骨架膜提出了改善其透量和选择性的思路。

关键词: 膜, 分离, 分子筛, 气体, 渗透

Abstract:

Membrane-based separation is considered to be one of the most promising separation technologies due to its high efficiency and low energy consumption. Owing to the small difference in the mixtures’ physical properties (such as molecular sizes), it is extremely challenging to finely separate them. Metal-organic frameworks are featured to have good adjustability on aperture sizes and high porosity, thus are expected as ideal membrane materials to sieve molecules precisely. In this review, traditional porous membrane materials are compared and the metal-organic framework based membranes are classified into supported metal-organic framework membranes and mixed matrix membranes. Simultaneously, the fabrication methods and their developments of these two types of membranes are introduced and the more advanced fabrication methods are forecasted. Additionally, the applications of metal-organic framework membranes in gas separation, nanofiltration and desalination, and pervaporation are discussed. Finally, several directions to improve the permeability and selectivity of supported metal-organic framework membranes are proposed.

Key words: membrane, separation, molecular sieves, gas, permeation

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