Issue 18, 2021

Microscopically tuning the graphene oxide framework for membrane separations: a review

Abstract

Membrane-based separations have been widely applied in gas, water and organic solvent purifications to reduce energy consumption and minimize environmental pollution. In recent years, graphene oxide (GO) membranes have attracted increasing attention due to their self-assembly ability and excellent stability. In this review, publications within the last 3 years on microscopically tuning the GO framework are summarized and reviewed. Various materials, including organic molecules, polymers, inorganic particles, ions and 2D materials, have been deployed to intercalate with GO nanosheets. Due to the varied interlayer spacing and packing structure, the developed GO composites exhibit enhanced stabilities and separation performances. In addition, designing horizontal GO membranes and functionalizing GO nanosheets have also been reported to improve the performance. This review sheds light on the techniques to microscopically tune the GO framework and the resulting macroscopic changes in membrane properties and performances.

Graphical abstract: Microscopically tuning the graphene oxide framework for membrane separations: a review

Article information

Article type
Minireview
Submitted
25 jun 2021
Accepted
08 aug 2021
First published
10 aug 2021
This article is Open Access
Creative Commons BY license

Nanoscale Adv., 2021,3, 5265-5276

Microscopically tuning the graphene oxide framework for membrane separations: a review

B. Li, C. Wang, N. E. Surat'man, X. J. Loh and Z. Li, Nanoscale Adv., 2021, 3, 5265 DOI: 10.1039/D1NA00483B

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