Ti3C2 assisting 1T&2H-MoS2/TiO2 Z-scheme heterojunction as a prospective photocatalyst for sulfamethazine degradation

Published: 8 May 2024| Version 1 | DOI: 10.17632/ygb9vsmjgg.1


Herein, we report a two-dimensional (2D) Ti3C2/1T&2H-MoS2/TiO2 photocatalyst obtained by in situ growth of a 1T&2H-MoS2/TiO2 Z-scheme heterojunction on a highly conductive Ti3C2 MXene surface. The spectral response range of the resulting Ti3C2/1T&2H-MoS2/TiO2 (Ti3C2:1T&2H-MoS2:TiO2= 1:10:10) photocatalyst was broadened and the band gap was reduced. These results demonstrate that Ti3C2 MXene assisted Z-type heterojunction is a feasible strategy to expand the optical absorption range and reduce the band gap of TiO2 for photocatalytic application.


Steps to reproduce

This study initially involved the initial creation of a CoP/TiO2 p-n Schottky junction by combining TiO2 with the narrow band gap semiconductor CoP. Subsequently, the CoP/TiO2 composite was grown in situ on Ti3C2 through electrostatic self-assembly, resulting in a 2D ternary structural Ti3C2/CoP/TiO2 composite featuring dual co-catalysts CoP and Ti3C2. The Ti3C2/CoP/TiO2 (Ti3C2:CoP:TiO2=1:10:10) composite showed 98.52% efficiency in sulfamethoxazole (SMZ)


Kinetics, Photocatalyst