Formation of surface nano-step structures and improvement of photocatalytic activities of NaTaO 3 by doping of alkaline earth metal ions

Akihide Iwase, Hideki Kato, Hiroaki Okutomi, Akihiko Kudo

Research output: Contribution to journalArticlepeer-review

72 Citations (Scopus)

Abstract

Powders of NaTaO 3 doped with alkaline earth metal ions were prepared. Scanning electron microscopy observation revealed that NaTaO 3 crystals doped with Ca, Sr, and Ba became smaller than nondoped NaTaO 3 crystals. In addition, nano-step structures were constructed on the surfaces of NaTaO 3 doped with Ca, Sr, and Ba. The photocatalytic activity of water splitting on NaTaO 3 was improved by the doping of Ca, Sr, and Ba. It is due to the small particle size and the formation of surface nano-step structures as observed for La doping.

Original languageEnglish
Article numberCL-040786
Pages (from-to)1260-1261
Number of pages2
JournalChemistry Letters
Volume33
Issue number10
DOIs
Publication statusPublished - 2004 Oct 5
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)

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