Photocatalytic Activities of Noble Metal Ion Doped SrTiO 3 under Visible Light Irradiation
Japan Science and Technology Agency · Tokyo University of Science
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 H2 evolution reaction.
Citation impact
- FWCI
- 18.72
- Percentile
- 100%
- References
- 18
Authors
4- RKRyoko KontaCorresponding
Japan Science and Technology Agency, Tokyo University of Science
- TITatsuya Ishii
Tokyo University of Science, Japan Science and Technology Agency
- HKHideki Kato
Japan Science and Technology Agency, Tokyo University of Science
- AKAkihiko Kudo
Tokyo University of Science, Japan Science and Technology Agency
Topics & keywords
- Photocatalysis
- Visible spectrum
- Aqueous solution
- Noble metal
- Dopant
- Photochemistry
- Irradiation
- Quantum yield
- Clean water and sanitation