Issue 13, 2023

Photo-response of water intercalated Ti3C2O2 MXene

Abstract

Two-dimensional (2D) transition metal carbides, nitrides, and carbonitrides (MXenes) have drawn a lot of attention because of their unique physicochemical properties. Recent experimental and theoretical findings reveal that water intercalation in MXene results in surface reconstruction and hydrolysis. In the current study, we investigated the electronic and optical characteristics of the water-intercalated Ti3C2O2 MXene using first-principles quantum simulations via density functional theory (DFT) and time-dependent density functional theory (TD-DFT). We show that water intercalation impacts the electronic states close to the Fermi level, which has a considerable effect on the electronic and optical properties of Ti3C2O2 MXene. Importantly, we linked hydrolysis with the changes in the HOMO and LUMO states and with the optical properties. The findings in this study contribute to a better understanding of the photo-response of the water-intercalated MXene.

Graphical abstract: Photo-response of water intercalated Ti3C2O2 MXene

Article information

Article type
Paper
Submitted
07 Feb 2023
Accepted
07 Mar 2023
First published
08 Mar 2023

Phys. Chem. Chem. Phys., 2023,25, 9522-9531

Photo-response of water intercalated Ti3C2O2 MXene

J. H. Mokkath, Phys. Chem. Chem. Phys., 2023, 25, 9522 DOI: 10.1039/D3CP00600J

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