Recent progress in two dimensional Mxenes for photocatalysis: a critical review

Haneef, T. and Rasool, K. and Iqbal, J. and Nawaz, R. and Raza Ul Mustafa, M. and Mahmoud, K.A. and Sarkar, T. and Shahzad, A. (2023) Recent progress in two dimensional Mxenes for photocatalysis: a critical review. 2D Materials, 10 (1).

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Transition metal carbides and nitrides, generally known as MXenes have emerged as an alternative to improve photocatalytic performance in renewable energy and environmental remediation applications because of their high surface area, tunable chemistry, and easily adjustable elemental compositions. MXenes have many interlayer groups, surface group operations, and a flexible layer spacing that makes them ideal catalysts. Over 30 different members of the MXenes family have been explored and successfully utilized as catalysts. Particularly, MXenes have achieved success as a photocatalyst for carbon dioxide reduction, nitrogen fixation, hydrogen evolution, and photochemical degradation. The structure of MXenes and the presence of hydrophilic functional groups on the surface results in excellent photocatalytic hydrogen evolution. In addition, MXenes� surface defects provide abundant CO2 adsorption sites. Moreover, their highly efficient catalytic oxidation activity is a result of their excellent two-dimensional nanomaterial structure and high-speed electron transport channels. This article comprehensively discusses the structure, synthesis techniques, photocatalytic applications (i.e. H2 evolution, N2 fixation, CO2 reduction, and degradation of pollutants), and recyclability of MXenes. This review also critically evaluates the MXene-based heterostructure and composites photocatalyst synthesis process and their performance for organic pollutant degradation. Finally, a prospect for further research is presented in environmental and energy sciences. © 2022 The Author(s). Published by IOP Publishing Ltd.

Item Type: Article
Impact Factor: cited By 0
Uncontrolled Keywords: Carbides; Carbon dioxide; Carbon nitride; Catalyst activity; Catalytic oxidation; Electron transport properties; Photocatalytic activity; Surface defects; Transition metals; Wastewater treatment, 2d mxenes; Carbon dioxide reduction; Critical review; Hydrogen-evolution; Photocatalytic performance; Recent progress; Transition metal nitrides; Transition metals carbides; Two-dimensional; ]+ catalyst, Organic pollutants
Depositing User: Mr Ahmad Suhairi Mohamed Lazim
Date Deposited: 26 Jan 2023 01:39
Last Modified: 26 Jan 2023 01:39

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