“非经典”分子筛——物质高效分离新技术研究综述

doi:10.3866/PKU.DXHX202302017

Abstract

Abstract:

Molecular sieves, a type of material with porous structure, are able to separate small molecules. Classical molecular sieves have been investigated thoroughly, but they have limitations as well. For example, they are unable to separate chemicals with similar physical properties. In recent years, scientists have begun to focus on "non-classical" methods for chemical separation. Many achievements have been made, such as microporous membranes, porous liquid and cage-like molecules. Some of these methods may greatly reduce the cost of industrial production and even have a great influence on social and economic development. In this review, the novel methods are discussed, and the development trend of this research field is provided.

Key words: Molecular sieve, Chemical Separation, Microporous membrane, Porous liquid, Cage-like molecule

Helin Li, Chenyang Duan, Yibing Wang, Jingxuan Wei, Jiang Bian. Non-classical Molecular Sieves: A Review on Novel Methods of Efficient Chemical Separation[J].University Chemistry, 2023, 38(11): 337-344.

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References 19

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方法	优势	不足
传统分子筛	特异性吸附小分子质子溶剂(水、乙醇等)残留；已得到广泛研究与应用	应用范围较窄，无法分离物理性质相似的物质
无机薄膜	使气体在流动过程中被分离，操作简便高效	制备方法较复杂，浪费支持物，可持续性不佳
多孔液体	可将气体暂时储存在胶体溶液中，使气体具有类似液体的“流动性”	已取得的成果多为有机溶剂体系，难以在生产生活中应用
笼形分子	也可分离液相的同分异构体等，可分离的物质范围较广；易于合成	以主客体的特异性结合为基础，需大量主体分子以提高分离效率

Non-classical Molecular Sieves: A Review on Novel Methods of Efficient Chemical Separation

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