Engineered graphene-based mixed matrix membranes to boost CO2 separation performance: Latest developments and future prospects

Farhang Pazani, Mohammad Salehi Maleh, Mehrdad Shariatifar, Maisam Jalaly, Mohtada Sadrzadeh and Mashallah Rezakazemi

Renewable and Sustainable Energy Reviews, 2022, vol. 160, issue C

Abstract: Mixed matrix membranes (MMMs) have drawn a great deal of attention as a desirable strategy for efficient gas separation. In this context, graphene-based nanosheets (GNSs) with exceptional structural specifications and molecular separation properties enjoy the promising application in MMMs fabrication. These features endow polymeric matrices with high permselectivity and thermo mechanical stability. Herein, the most recent advances on the application of GNSs-based MMMs for CO2 separation are comprehensively reviewed. Interfacial morphologies and separation mechanisms that affect virtual gas transport properties in the presence of GNS MMMs are proposed. The key factors influencing gas separation concerning GNSs characteristics, including type, lateral size, in-plane pores, and interlayer channels of GNSs, are discussed. As the major part of this review, rational strategies to boost gas separation performance of GNS-MMMs, such as employing various surface modifications and incorporation of other additives as third components, are provided in detail. Finally, the remaining challenges and future outlook of GNSs-based MMMs are outlined.

Keywords: Gas separation; Graphene-based mixed matrix membrane; Interfacial morphologies; Separation mechanism; Surface functionalization strategies (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1016/j.rser.2022.112294

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