Effects of selective leaching of bismuth oxide sheets in triple-layered Aurivillius phases on their photocatalytic activities

Manabu Kudo, Saki Tsuzuki, Ken Ichi Katsumata, Atsuo Yasumori, Yoshiyuki Sugahara*

*この研究の対応する著者

研究成果: Article査読

21 被引用数 (Scopus)

抄録

The photocatalytic activities of triple-layered Aurivillius phases, Bi 2ANaNb3O12 (A =Sr, Ca) and Bi2CaNaTa3O12, and of protonated forms prepared from these Aurivillius phases through selective leaching of bismuth oxide sheets were investigated. UV-Vis diffuse reflectance spectra showed blue shifts of the adsorption edges upon selective leaching. Although none of the triple-layered Aurivillius phases were active for photocatalytic H2 evolution from a 20 vol% ethanol solution, all the corresponding protonated forms showed photocatalytic activities for H 2 evolution. The effects of the changes in electronic structures and interlayer surface creation on photocatalytic activities are discussed.

本文言語English
ページ(範囲)12-16
ページ数5
ジャーナルChemical Physics Letters
393
1-3
DOI
出版ステータスPublished - 2004 7 21

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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