Chem. J. Chinese Universities ›› 2021, Vol. 42 ›› Issue (1): 248.doi: 10.7503/cjcu20200407

Special Issue: 分子筛功能材料 2021年,42卷,第1期

• Review • Previous Articles     Next Articles

Two-dimensional Nanosheets for Ultra-permeable Membrane-Based Gas Separation with High Efficiency

SONG Hongling1,2, PENG Yuan1,2(), YANG Weishen1,2()   

  1. 1.State Key Laboratory of Catalysis,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023,China
    2.University of Chinese Academy of Sciences,Beijing 100049,China
  • Received:2020-06-30 Online:2021-01-10 Published:2021-01-12
  • Contact: PENG Yuan E-mail:pengyuan@dicp.ac.cn;yangws@dicp.ac.cn
  • Supported by:
    ? Supported by the National Natural Science Foundation of China(21808215);the Innovation Fund of Dalian Institute of Chemical Physics, CAS(ZZBS201815);the Liaoning Revitalization Talents Program, China(XLYC1801004)

Abstract:

Membrane-based separation is an advanced technology with significantly low energy consumption, and has enormous potential in industrial separation applications. However, commercial gas separation membranes are subjected to the trade-off between selectivity and permeability. Membranes constructed with two- dimensional(2D) nanosheets as building units hopefully break through this bottleneck. To date, the most representative 2D nanosheet membranes are graphene and its derivatives, 2D zeolites, layered double hydro-xides, 2D transition metal dichalcogenides, 2D covalent organic frameworks and metal-organic framework materials. In this review, the developments and progresses of these membrane materials in the field of gas separation will be introduced, presenting their merits and demerits in the practical separation process simultaneously, and the challenges and development prospects of the 2D nanosheet membranes for gas separation applications will be discussed.

Key words: Two-dimensional nanosheet, Ultrathin membrane, Gas separation, Molecular sieve, Membrane structure

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