Photocatalytic Activities of Three-Layered Protonated Layered Perovskites Prepared through Acid Treatment of Aurivillius Phases

Manabu Kudo; Saki Tsuzuki; Ken-ichi Katsumata; Atsuo Yasumori; Yoshiyuki Sugahara

doi:10.14853/pcersj.2002F.0.105.0

15th Fall Meeting of The Ceramic Society of Japan

DOI https://doi.org/10.14853/pcersj.2002F.0.105.0

Conference information

Host: The Ceramic Society of Japan

Photocatalytic Activities of Three-Layered Protonated Layered Perovskites Prepared through Acid Treatment of Aurivillius Phases

Manabu Kudo, Saki Tsuzuki, Ken-ichi Katsumata, Atsuo Yasumori, Yoshiyuki Sugahara

Author information

Keywords: Layered compound, Photocatalyst, Ion exchange, Bismuth Layered Oxides, Acid Treatment

CONFERENCE PROCEEDINGS FREE ACCESS

Pages 105

Details

Abstract

The photocatalytic activities of three Aurivillius phases with a three-layered structure, Bi₂ANaNb₃O₁₂ (A=Sr, Ca) and Bi₂CaNaTa₃O₁₂, and the corresponding protonated forms prepared through selective leaching of bismuth oxide sheets were investigated. The UV-vis diffuse reflectance spectroscopy revealed that the band gaps of these three Aurivillius phases increased after selective leaching. Only the converted protonated forms exhibited activity for photocatalytic H₂ evolution.

Corresponding author

Register with J-STAGE for free!