Low-temperature hydrothermal synthesis of S-doped TiO2 with visible light photocatalytic activity

Wingkei Ho, Jimmy C. Yu, Shuncheng Lee

Research output: Journal article publicationJournal articleAcademic researchpeer-review

241 Citations (Scopus)

Abstract

A one-step low-temperature hydrothermal route was developed for the synthesis of S-doped TiO2photocatalysts from TiS2and HCl. Crystalline TiO2was formed and sulfur could be efficiently doped into the anatase lattice under hydrothermal conditions. When the initial TiS2concentration is increased, the content of S-dopant and optical absorption in the visible region also increase. The photocatalytic activity of the S-doped TiO2was evaluated through the degradation of 4-chlorophenol under visible light irradiation. Our results show that the S-doped TiO2prepared by this hydrothermal approach possesses much higher photocatalytic activity than that obtained by the traditional high-temperature thermal annealing method.
Original languageEnglish
Pages (from-to)1171-1176
Number of pages6
JournalJournal of Solid State Chemistry
Volume179
Issue number4
DOIs
Publication statusPublished - 1 Apr 2006

Keywords

  • Doping
  • Photocatalyst
  • Sulfur
  • Titanium dioxide
  • Visible light

ASJC Scopus subject areas

  • Inorganic Chemistry
  • Physical and Theoretical Chemistry
  • Materials Chemistry

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