Photocatalytic Nb2CTx MXene demonstrated for decomposing organic compounds

Abstract MXenes are two-dimensional materials that possess promising optical properties, but their quantum properties are still waiting to be discovered. This work focuses on Nb 2 CT x MXene, which displays superior charge separation and reduction of recombination. These features were employed to decompose organic compounds photocatalytically. The delaminated Nb 2 CT x MXene containing (SL) single-layered flakes was compared with its multilayered (ML) Nb 2 CT x counterpart. SL Nb 2 CT x MXene achieved almost 95% efficiency in photocatalytically decomposing methylene blue dye under UV, simulated white (400–700 nm), and cyan (500 nm) light irradiation. The 100-fold higher concentration of commercial textile dye was decomposed by 80% under white light irradiation. The SL Nb 2 CT x showed greater than 60% better results in decomposing organic dye than SL Ti 3 C 2 T x MXene after 30 min. The fast decomposition of organic dyes is owing to the activity of reactive oxygen species generated on the materials’ surface under light irradiation. Ultimately, the SL Nb 2 CT x MXene was regenerated and reused. Graphical abstract Impact statement This study presents a novel approach to enhancing photocatalytic activity by incorporating Nb 2 CT x MXene, a two-dimensional (2D) nanomaterial, into photocatalytic matrices. This innovative method holds significant promise for tissue engineering, environmental protection, and wastewater treatment due to the excellent efficiency and structural stability conferred by MXene. Unlike traditional photocatalysts, MXene can be used under specific red light irradiation, can be reused in the photocatalysis process, and demonstrates environmentally friendly properties. Furthermore, Nb 2 CT x MXene is an excellent material for decomposing commercial organic compounds, which are much more difficult to remove than model dyes. The research aligns with the aims and scope of MRS Bulletin by contributing to the understanding of the photocatalytic decomposition mechanism of both model and commercial textile dyes within MXene, as well as their outstanding optical and physicochemical properties. The synthesis and characterization of Nb 2 CT x MXene, and its properties, address key topics within the journal’s scope, including chemical routes to materials and 2D materials. The study’s findings on structural stabilization, the influence of synthesis on the material’s properties, and its surface activity are consistent with the journal’s focus on innovative materials.