Visible-light induced photocatalytic activity of vanadium and nitrogen co-doped SrTiO3

Jinshu Wang, Hui Li, Hongyi Li, Shu Yin, Tsugio Sato

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Vanadium doped, nitrogen doped, and vanadium and nitrogen co-doped SrTiO3 powders with size of 20-30 nm in diameter were prepared by high energy milling method respectively. It was found that compared with those of pure SrTiO3, the photocatalytic activities of these three doped SrTiO3 samples for decomposing NO under visible light (λ>400 nm) and near ultraviolet light (λ>290 nm) irradiation were improved, and the co-doped sample exhibited the highest photocatalytic activity. 43.2% NO could be eliminated under the irradiation of light with wavelength larger than 400nm, about 3 times higher than that by pure SrTiO 3. The photocatalytic activity of this sample near ultraviolet range is about 1.7 times higher than that of pure SrTiO3. The high visible light photocatalytic activity of this substance may be due to the high visible light absorption and large specific surface area.

Original languageEnglish
Title of host publicationMechatronic Systems and Materials III
PublisherTrans Tech Publications Ltd
Pages851-855
Number of pages5
ISBN (Print)3908451655, 9783908451655
DOIs
Publication statusPublished - 2009

Publication series

NameSolid State Phenomena
Volume147-149
ISSN (Print)1012-0394

Keywords

  • Dopant
  • Photocatalyst
  • Photocatalytic efficiency
  • Visible light

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics

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