Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 113, Issue 45, Pages 19386-19388Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp908621e
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Funding
- Ministry of Education and Culture, Sports, Science, and Technology (MEXT) of Japan
- Japan Society for the Promotion of Science (JSPS) [20760526]
- Grants-in-Aid for Scientific Research [20760526] Funding Source: KAKEN
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Doping of aliovalent metal cations to SrTiO3, a photocatalyst for overall water splitting, was variously examined for the control of defect structure as well as the photocatalysis. Doping of a cation with valence lower than that of the parent cation effectively enhanced photocatalytic activity, while the doping of a higher valence cation led to the suppressed photocatalysis. It was demonstrated that the doping of a lower valence cation to intentionally introduce oxygen vacancies and decrease Ti3+ is effective to enhance photocatalytic activity.
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