The effect of alkaline earth metal ion dopants on photocatalytic water splitting by NaTaO3 powder

Akihide Iwase, Hideki Kato, Akihiko Kudo

Research output: Contribution to journalArticle

70 Citations (Scopus)

Abstract

Alkaline earth metal ions (Ca, Sr, and Ba) are doped into a NaTaO3 photocatalyst, yielding fine particles and surface structures with nanometer-scale "steps." The formation of the surface nanostep structure depends on the amount of doped Sr and Ba. The photocatalytic water splitting over NaTaO3 is enhanced: NaTaO3 doped with 0.5 and 1.0 mol% of Sr shows high activities for photocatalytic water splitting without loading of a co-catalyst, and the photocatalytic activity is further improved by loading with a NiO co-catalyst.

Original languageEnglish
Pages (from-to)873-877
Number of pages5
JournalChemSusChem
Volume2
Issue number9
DOIs
Publication statusPublished - 2009 Jan 1

Keywords

  • Doping
  • Nanostructures
  • Photocatalysis
  • Surface chemistry
  • Water splitting

ASJC Scopus subject areas

  • Environmental Chemistry
  • Chemical Engineering(all)
  • Materials Science(all)
  • Energy(all)

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