Recent progress of two-dimensional nanosheet membranes and composite membranes for separation applications

2021年第15卷第4期

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《化学科学与工程前沿（英文）》 >> 2021年第15卷第4期 doi: 10.1007/s11705-020-2016-8

Recent progress of two-dimensional nanosheet membranes and composite membranes for separation applications

School of Chemistry & Chemical Engineering, South China University of Technology, Guangzhou 510640, China

收稿日期： 2020-11-27 录用日期： 2021-01-22 发布日期： 2021-01-22

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摘要

Two-dimensional (2D) materials have emerged as a class of promising materials to prepare high-performance 2D membranes for various separation applications. The precise control of the interlayer nanochannel/sub-nanochannel between nanosheets or the pore size of nanosheets within 2D membranes enables 2D membranes to achieve promising molecular sieving performance. To date, many 2D membranes with high permeability and high selectivity have been reported, exhibiting high separation performance. This review presents the development, progress, and recent breakthrough of different types of 2D membranes, including membranes based on porous and non-porous 2D nanosheets for various separations. Separation mechanism of 2D membranes and their fabrication methods are also reviewed. Last but not the least, challenges and future directions of 2D membranes for wide utilization are discussed in brief.

关键词

membrane separation ; 2D membranes ; 2D materials ; nanosheet