Mechanochemical synthesis of SrTiO3-xFx with high visible light photocatalytic activities for nitrogen monoxide destruction

Jinshu Wang, Shu Yin, Qiwu Zhang, Fumio Saito, Tsugio Sato

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110 Citations (Scopus)

Abstract

Fluorine doped SrTiO3 powders were prepared by a mechanochemical reaction method. The powders consisted of spherical particles of 20 nm and 0.1-0.2 μm in diameter. The photocatalytic activities of SrTiO3 for the oxidative decomposition of NO under visible light (λ > 400 nm) and near ultraviolet light (λ > 290 nm) irradiation were greatly improved by the fluorine doping. Fluorine doping in the SrTiO3 lattice enhanced its photocatalytic activity under irradiation with visible light (λ > 400 nm) ca. three times. It was also found that the photocatalytic activities of SrTiO3-xF x under both visible light and near ultraviolet light irradiation were higher than those of commercial titania powder (Degussa P-25).

Original languageEnglish
Pages (from-to)2348-2352
Number of pages5
JournalJournal of Materials Chemistry
Volume13
Issue number9
DOIs
Publication statusPublished - 2003 Sep 1

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

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