Visible-light induced photocatalytic activity of TiO2-x Ay (A = N, S) prepared by precipitation route

Shu Yin, K. Ihara, Y. Aita, M. Komatsu, T. Sato

研究成果: Article

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Nitrogen doped or nitrogen/sulfur co-doped titania photocatalyst TiO2-xAy (A = N, S) which can be excited by visible light were prepared by mixing aqueous TiCl3 solutions with various nitrogen sources such as hydroxylamine (NH2OH), hexamethylenetetramine (HMT, C6H12N4), urea ((NH2)2CO) and thiourea ((NH2) 2CS) followed by hydrothermal treatment at 190 °C. The titania powders prepared using hydroxylamine consisted of rutile crystals with non-homogeneous size distribution. The nitrogen doped titania powders prepared using hexamethylenetetramine consisted of mainly mono-size spherical brookite crystals, whereas those using urea and thiourea consisted of belt-like rutile particles. The TiO2-xAy (A = N, S) powders showed excellent visible-light absorption and photocatalytic ability for the oxidative destruction of nitrogen monoxide under irradiation of visible light. The effect of reaction solvents on the phase composition, specific surface area and photocatalytic activity was also characterized.

元の言語English
ページ(範囲)105-114
ページ数10
ジャーナルJournal of Photochemistry and Photobiology A: Chemistry
179
発行部数1-2
DOI
出版物ステータスPublished - 2006 4 1

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Physics and Astronomy(all)

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