HYDROTHERMAL FABRICATION OF Z-SCHEME Sn3O4/BiVO4 NANOCOMPOSITE FOR PHOTOCATALYTIC DEGRADATION OF RHODAMINE B DYE

Sn3O4/BiVO4 photocatalyst was prepared by the hydrothermal route, and its activity was tested on the degradation of RhB dye under sunlight. The 15 wt% Sn3O4/BiVO4 photocatalysts degraded 99 % (RhB, 10 mg/L), whose degradation rate was 5.7 times and 10 times superior to BiVO4 and Sn3O4 photocatalysts, respectively. The strong visible light absorption by 15 wt% Sn3O4/BiVO4 nanocomposite, band position of Sn3O4 and BiVO4, which are like Z-scheme, proficient suppression of electron-hole recombination, and formation of reactive oxygen species in situ are the main reasons for the better photocatalytic efficiency of Sn3O4/BiVO4 nanocomposite.