Visible light-induced degradation of methylene blue on S-doped TiO2

Tsutomu Umebayashi, Tetsuya Yamaki, Sigeru Tanaka, Keisuke Asai

Research output: Contribution to journalArticlepeer-review

503 Citations (Scopus)

Abstract

A sulfur (S)-doped titanium dioxide (TiO2) photocatalyst was synthesized by oxidative annealing of titanium disulfide (TiS2). TiS2 turned into anatase TiO2 when annealed in air. The residual S atoms occupied O-atom sites in the TiO2 to form Ti-S bonds. The S doping caused the absorption edge of TiO2 to be shifted into the lower energy region. Consequently, methylene blue adsorbed on the S-doped TiO2 was photocatalytically decomposed by visible light irradiation.

Original languageEnglish
Pages (from-to)330-331
Number of pages2
JournalChemistry Letters
Volume32
Issue number4
DOIs
Publication statusPublished - 2003 Apr 5
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)

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