Visible light-induced degradation of methylene blue on S-doped TiO

Umebayashi, Tsutomu; Yamaki, Tetsuya; Tanaka, Shigeru; Asai, Keisuke*

Chemistry Letters, 32(4), p.330 - 331, 2003/04

https://doi.org/10.1246/cl.2003.330

A sulfur (S)-doped titanium dioxide (TiO) photocatalyst was synthesized by oxidative annealing of titanium disulfide (TiS). TiS turned into anatase TiO when annealed in air. The residual S atoms occupied O-atom sites in the TiO to form Ti-S bonds. The S doping caused the absorption edge of TiO to be shifted into the lower energy region. Consequently, methylene blue adsorbed on the S-doped TiO was photocatalytic decomposed by visible light irradiation.