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

Ryoko Konta, Tatsuya Ishii, Hideki Kato, Akihiko Kudo

Research output: Contribution to journalArticlepeer-review

681 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 languageEnglish
Pages (from-to)8992-8995
Number of pages4
JournalJournal of Physical Chemistry B
Volume108
Issue number26
DOIs
Publication statusPublished - 2004 Jul 1
Externally publishedYes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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