Charge separation at the rutile/anatase interface: A dominant factor of photocatalytic activity

Takahira Miyagi*, Masayuki Kamei, Takefumi Mitsuhashi, Takamasa Ishigaki, Atsushi Yamazaki

*この研究の対応する著者

研究成果: Article査読

127 被引用数 (Scopus)

抄録

Epitaxial and polycrystalline anatase films were grown by pulse-powered magnetron sputtering. The photoreduction of Ag ions showed the difference in the distribution of the photocatalytic active sites in these films. The polycrystalline anatase film was covered with an Ag layer. In contrast, discrete Ag particles were interspatially deposited on the epitaxial anatase film. Evaluation of the epitaxial film by micro-Raman spectrometry revealed that the rutile coexisted at only the site where the Ag particle was precipitated. These results suggest that the rutile/anatase interface is the active site for photocatalysis and is one of the dominant factors of the photocatalytic activity.

本文言語English
ページ(範囲)399-402
ページ数4
ジャーナルChemical Physics Letters
390
4-6
DOI
出版ステータスPublished - 2004 6 1

ASJC Scopus subject areas

  • 物理学および天文学(全般)
  • 物理化学および理論化学

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