It was found for the first time that controlling the charge density in oxide semiconductors with an acceptor was effective for improving the activity to photolysis of H 2 O. Although the photodecomposition activity of NiO supported on nondoped KTaO 3 was negligibly small, doping small amount of acceptors such as tri-or tetravalent cations to KTaO 3 increased the formation rate of H 2 and O 2 . In particular, it was found that NiO supported on KTaO 3 doped with 8 mol % Zr 4+ exhibits higher activity to the photocatalytic decomposition of H 2 O than that of a well-known photocatalyst of Pt/TiO 2 .

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ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

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