Advancements of 2D Materials-Based Membranes

Dear Colleagues,

Two-dimensional (2D) materials such as graphenes, MXenes, MoS2, 2D covalent‐organic frameworks, and metal–organic frameworks are rapidly emerging in the development of membranes with high selectivity and permeability. Characteristic properties of 2D materials including high conductivity, hydrophilicity, rational tunability and precise control of interlayer spacing and/or nanochannles enable 2D materials-based membranes to achieve highly selective and precise separations. 2D materials sieving mechanism of target molecules is mainly governed by size exclusion through the ultrathin stacked architecture of 2D materials-based membranes and in some cases (such as in MXenes) interaction between the transported molecules and the charged layers. In recent years, several theoretical and experimental efforts were devoted to advance the rational design of predefined interlayer channels, membrane nanopores, and reasonable functionalization to overcome the tradeoff between selectivity and permeability of 2D nanomaterial‐based membranes.

This Special Issue is focusing on the recent advancements of the various 2D materials-based membranes. It covers all aspects associated with the synthesis and modifications of 2D materials, different fabrication methods of 2D materials based membranes, their separation mechanisms, and applications in various membrane-based processes, including desalination, wastewater treatment, gas separation, solvent purification, and oil/water separation.

Dr. Khaled A Mahmoud
Guest Editor

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