Enhanced degradation of ciprofloxacin in water using ternary photocatalysts TiO/SnO/g-CN under UV, visible, and solar light.

In this study, we report on the synthesis of ternary photocatalysts comprising TiO/SnO/g-CN for the degradation of ciprofloxacin (CIP) in water. SnO nanoparticles were synthesized via the sol-gel method, while g-CN was obtained through melamine calcination. Commercial TiO and SnO nanopowders were also used.

Nanoparticulate Double-Heterojunction Photocatalysts Comprising TiO/WO/TiO with Enhanced Photocatalytic Activity toward the Degradation of Methyl Orange under Near-Ultraviolet and Visible Light.

Nanoparticulate double-heterojunction photocatalysts comprising TiO/WO/TiO were produced by a sol-gel method. The resulting photocatalysts exhibit clear synergistic effects when tested toward the degradation of methyl orange under both UV and visible light. Kinetic studies indicate that the degradation rate on the best double-heterojunction photocatalyst (10 wt % WO-TiO) depends mainly on the amount of dye concentration, contrary to pure oxides in which the degradation rate is limited by diffusion-controlled processes.