Effects of dye mixing on photocatalytic splitting of H2O into H2 and O2 on KTaO3

Hidehisa Hagiwara; Hiroshige Matsumoto; Tatsumi Ishihara

Effects of dye mixing on photocatalytic splitting of H₂O into H₂ and O₂ on KTaO₃

Hidehisa Hagiwara, Hiroshige Matsumoto, Tatsumi Ishihara

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Effects of mixing dye sensitizer for the photocatalytic activity of dye-sensitized Pt/K_0.95Ta_0.92Zr_0.08O ₃ was investigated. It was found that the photocatalytic activity was greatly improved by mixing dye sensitizer on the catalyst, and among the examined combination of organic dyes, the highest photocatalytic activity was obtained by mixing Cr-tetraphenylporphyrin (Cr-TPP) and Pentametylene bis[4-(10, 15, 20-triphenylporphine-5-yl)benzoate] dizinc(II) (Zn-TPP dimer). In order to identify the effect of dye sensitizer, photovoltaic behavior of the dye-sensitized KTaO₃ was investigated. The lifetime of the photo-exited electron and hole can be improved by coating with dye sensitizer. Thus, the effect of porphyrinoids would be explained by the improved efficiency of charge separation.

Original language	English
Title of host publication	Eco-Materials Processing and Design VIII - ISEPD-8, Proceedings of the 8th International Symposium on Eco-Materials Processing and Design
Pages	51-54
Number of pages	4
Publication status	Published - Dec 1 2007
Event	8th International Symposium on Eco-Materials Processing and Design, ISEPD-8 - Kitakyushu, Japan Duration: Jan 11 2007 → Jan 13 2007

Publication series

Name	Materials Science Forum
Volume	544-545
ISSN (Print)	0255-5476

Other

Other	8th International Symposium on Eco-Materials Processing and Design, ISEPD-8
Country/Territory	Japan
City	Kitakyushu
Period	1/11/07 → 1/13/07

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Cite this

Effects of dye mixing on photocatalytic splitting of H₂O into H₂ and O₂ on KTaO₃. / Hagiwara, Hidehisa; Matsumoto, Hiroshige ; Ishihara, Tatsumi.
Eco-Materials Processing and Design VIII - ISEPD-8, Proceedings of the 8th International Symposium on Eco-Materials Processing and Design. 2007. p. 51-54 (Materials Science Forum; Vol. 544-545).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Hagiwara, H, Matsumoto, H & Ishihara, T 2007, Effects of dye mixing on photocatalytic splitting of H₂O into H₂ and O₂ on KTaO₃. in Eco-Materials Processing and Design VIII - ISEPD-8, Proceedings of the 8th International Symposium on Eco-Materials Processing and Design. Materials Science Forum, vol. 544-545, pp. 51-54, 8th International Symposium on Eco-Materials Processing and Design, ISEPD-8, Kitakyushu, Japan, 1/11/07.

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abstract = "Effects of mixing dye sensitizer for the photocatalytic activity of dye-sensitized Pt/K0.95Ta0.92Zr0.08O 3 was investigated. It was found that the photocatalytic activity was greatly improved by mixing dye sensitizer on the catalyst, and among the examined combination of organic dyes, the highest photocatalytic activity was obtained by mixing Cr-tetraphenylporphyrin (Cr-TPP) and Pentametylene bis[4-(10, 15, 20-triphenylporphine-5-yl)benzoate] dizinc(II) (Zn-TPP dimer). In order to identify the effect of dye sensitizer, photovoltaic behavior of the dye-sensitized KTaO3 was investigated. The lifetime of the photo-exited electron and hole can be improved by coating with dye sensitizer. Thus, the effect of porphyrinoids would be explained by the improved efficiency of charge separation.",

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N2 - Effects of mixing dye sensitizer for the photocatalytic activity of dye-sensitized Pt/K0.95Ta0.92Zr0.08O 3 was investigated. It was found that the photocatalytic activity was greatly improved by mixing dye sensitizer on the catalyst, and among the examined combination of organic dyes, the highest photocatalytic activity was obtained by mixing Cr-tetraphenylporphyrin (Cr-TPP) and Pentametylene bis[4-(10, 15, 20-triphenylporphine-5-yl)benzoate] dizinc(II) (Zn-TPP dimer). In order to identify the effect of dye sensitizer, photovoltaic behavior of the dye-sensitized KTaO3 was investigated. The lifetime of the photo-exited electron and hole can be improved by coating with dye sensitizer. Thus, the effect of porphyrinoids would be explained by the improved efficiency of charge separation.

AB - Effects of mixing dye sensitizer for the photocatalytic activity of dye-sensitized Pt/K0.95Ta0.92Zr0.08O 3 was investigated. It was found that the photocatalytic activity was greatly improved by mixing dye sensitizer on the catalyst, and among the examined combination of organic dyes, the highest photocatalytic activity was obtained by mixing Cr-tetraphenylporphyrin (Cr-TPP) and Pentametylene bis[4-(10, 15, 20-triphenylporphine-5-yl)benzoate] dizinc(II) (Zn-TPP dimer). In order to identify the effect of dye sensitizer, photovoltaic behavior of the dye-sensitized KTaO3 was investigated. The lifetime of the photo-exited electron and hole can be improved by coating with dye sensitizer. Thus, the effect of porphyrinoids would be explained by the improved efficiency of charge separation.

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