Effects of acceptor doping to KTaO3 on photocatalytic decomposition of pure H2O

Tatsumi Ishihara, Hiroyasu Nishiguchi, Keiko Fukamachi, Yusaku Takita

Research output: Contribution to journalArticlepeer-review

175 Citations (Scopus)


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 H2O. Although the photodecomposition activity of NiO supported on nondoped KTaO3 was negligibly small, doping small amount of acceptors such as tri- or tetravalent cations to KTaO3 increased the formation rate of H2 and O2. In particular, it was found that NiO supported on KTaO3 doped with 8 mol % Zr4+ exhibits higher activity to the photocatalytic decomposition of H2O than that of a well-known photocatalyst of PtTTiO2 .

Original languageEnglish
Pages (from-to)1-3
Number of pages3
JournalJournal of Physical Chemistry B
Issue number1
Publication statusPublished - Jan 7 1999
Externally publishedYes

All Science Journal Classification (ASJC) codes

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

Fingerprint Dive into the research topics of 'Effects of acceptor doping to KTaO<sub>3</sub> on photocatalytic decomposition of pure H<sub>2</sub>O'. Together they form a unique fingerprint.

Cite this