Abstract
Two-dimensional (2D) nanomaterials are an emerging platform with unique structural and physiochemical properties attracted intense interest in developing high-performance gas and liquid separation membranes. This review provides an overview on the latest breakthrough studies in the fabrication of 2D nanomaterials membranes including atomically thin membranes, laminar and mixed matrix membranes. Especially, we focus on structural features, permeation mechanism as well as gas and liquid separation performance of 2D nanomaterials membranes. Additionally, we highlighted the unique role of 2D nanomaterials in mitigating plasticization and physical aging phenomena in polymer-based membranes. Finally, we underline current challenges and future prospects of this intriguing materials platform for developing next generation of membranes.Highlights• Physiochemical properties and synthesis approaches of various 2D nanomaterials are highlighted• Latest breakthrough achievements in developing large area atomically thin graphene membranes are presented• Gas separation, water and organic solvent permeation performance, and ion sieving properties of 2D materials-based membranes are summarized• Role of 2D nanomaterials in mitigating plasticization, physical aging and fouling of polymer-based membranes are highlighted
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