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 journalArticlepeer-review

    79 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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