One of the methods for improving photocatalytic efficiency is using suitable co-catalysts which can promote the separation of photogenerated electrons and holes. In this study, a typical MXene material, layered Ti3C2, was selected as a co-catalyst and acquired by selectively etching Al element from Ti3AlC2 using hydrogen fluoride (HF), and then the interlayer spacing of Ti3C2 was reduced through ultrasonic oscillation treatment. By subsequent hydrothermal reactions, the ZnO nanoparticles successfully grew on the surface of two kinds of layered Ti3C2 without and with ultrasonic oscillation trea...
