Photocatalytic activities of noble metal ion doped SrTiO3 under visible light irradiation

Ryoko Konta; Tatsuya Ishii; Hideki Kato; Akihiko Kudo

doi:10.1021/jp049556p

Photocatalytic activities of noble metal ion doped SrTiO₃ under visible light irradiation

Ryoko Konta, Tatsuya Ishii, Hideki Kato, Akihiko Kudo

Research output: Contribution to journal › Article › peer-review

775 Citations (Scopus)

Abstract

Mn-, Ru-, Rh-, and Ir-doped SrTiO₃ possessed intense absorption bands in the visible light region due to excitation from the discontinuous levels formed by the dopants to the conduction band of the SrTiO₃ host. Mn- and Ru-doped SrTiO₃ showed photocatalytic activities for O₂ evolution from an aqueous silver nitrate solution while Ru-, Rh-, and Ir-doped SrTiO₃ loaded with Pt cocatalysts produced H₂ from an aqueous methanol solution under visible light irradiation (λ > 440 nm). The Rh(1%)-doped SrTiO₃ photocatalyst loaded with a Pt cocatalyst (0.1 wt %) gave 5.2% of the quantum yield at 420 nm for the H ₂ evolution reaction.

Original language	English
Pages (from-to)	8992-8995
Number of pages	4
Journal	Journal of Physical Chemistry B
Volume	108
Issue number	26
DOIs	https://doi.org/10.1021/jp049556p
Publication status	Published - 2004 Jul 1
Externally published	Yes

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Surfaces, Coatings and Films
Materials Chemistry

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abstract = "Mn-, Ru-, Rh-, and Ir-doped SrTiO3 possessed intense absorption bands in the visible light region due to excitation from the discontinuous levels formed by the dopants to the conduction band of the SrTiO3 host. Mn- and Ru-doped SrTiO3 showed photocatalytic activities for O2 evolution from an aqueous silver nitrate solution while Ru-, Rh-, and Ir-doped SrTiO3 loaded with Pt cocatalysts produced H2 from an aqueous methanol solution under visible light irradiation (λ > 440 nm). The Rh(1%)-doped SrTiO3 photocatalyst loaded with a Pt cocatalyst (0.1 wt %) gave 5.2% of the quantum yield at 420 nm for the H 2 evolution reaction.",

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T1 - Photocatalytic activities of noble metal ion doped SrTiO3 under visible light irradiation

AU - Konta, Ryoko

AU - Ishii, Tatsuya

AU - Kato, Hideki

AU - Kudo, Akihiko

PY - 2004/7/1

Y1 - 2004/7/1

N2 - Mn-, Ru-, Rh-, and Ir-doped SrTiO3 possessed intense absorption bands in the visible light region due to excitation from the discontinuous levels formed by the dopants to the conduction band of the SrTiO3 host. Mn- and Ru-doped SrTiO3 showed photocatalytic activities for O2 evolution from an aqueous silver nitrate solution while Ru-, Rh-, and Ir-doped SrTiO3 loaded with Pt cocatalysts produced H2 from an aqueous methanol solution under visible light irradiation (λ > 440 nm). The Rh(1%)-doped SrTiO3 photocatalyst loaded with a Pt cocatalyst (0.1 wt %) gave 5.2% of the quantum yield at 420 nm for the H 2 evolution reaction.

AB - Mn-, Ru-, Rh-, and Ir-doped SrTiO3 possessed intense absorption bands in the visible light region due to excitation from the discontinuous levels formed by the dopants to the conduction band of the SrTiO3 host. Mn- and Ru-doped SrTiO3 showed photocatalytic activities for O2 evolution from an aqueous silver nitrate solution while Ru-, Rh-, and Ir-doped SrTiO3 loaded with Pt cocatalysts produced H2 from an aqueous methanol solution under visible light irradiation (λ > 440 nm). The Rh(1%)-doped SrTiO3 photocatalyst loaded with a Pt cocatalyst (0.1 wt %) gave 5.2% of the quantum yield at 420 nm for the H 2 evolution reaction.

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Photocatalytic activities of noble metal ion doped SrTiO₃ under visible light irradiation

Abstract

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