Synthesis of High-Activity TiO2/WO3 Photocatalyst via Environmentally Friendly and Microwave Assisted Hydrothermal Process

This work focused on the synthesis of high-activity TiO2/WO3 photocatalysts through an environmentally friendly and novel process. A high energy-efficient microwave assisted hydrothermal method was employed to prepare TiO2/WO3 from TiCl4 and Na2WO4 without using any organic species. The properties of the synthesized catalysts were characterized by XRD, TEM and BET. The size of the obtained TiO2/WO3 photocatalyst was about 10 nm with high specific surface areas larger than 150 m2/g. Compared with pure TiO2, the TiO2/WO3 nanoparticles exhibited better photocatalytic activity for the degradation of Rhodamine B under visible light irradiation.

YUAN GAO ,JUNGANG YIN ,GUANGJUAN REN ,HUITAO LIU ,AN XING ,