Synthesis of SrBi2Ta2O9(SBT) by polymerizable complex method and its photocatalytic activity for water splitting

Koji Tomita; Toshitaka Kitamura; Masato Kakihana; Hideki Kato; Akihiko Kudo

doi:10.14853/pcersj.2004S.0.71.0

Preprints of Annual Meeting of The Ceramic Society of Japan, 2004

Session ID : 1D26

DOI https://doi.org/10.14853/pcersj.2004S.0.71.0

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Host: The Ceramic Society of Japan

Synthesis of SrBi₂Ta₂O₉(SBT) by polymerizable complex method and its photocatalytic activity for water splitting

*Koji Tomita, Toshitaka Kitamura, Masato Kakihana, Hideki Kato, Akihiko Kudo

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Keywords: SBT, photocatalyst, polymerizable complex method, water splitting, low-temperature synthesis, ferroelectrics

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Abstract

Ferroelectric materials with perovskite structure or layer perovskite structure are known as high efficient photocatalysts for water splitting into H2 and O2 under UV-light irradiation. In the present study, SrBi₂Ta₂O₉(SBT) and SrBi_2-xLa_xTa₂O₉(SBLT) with layer perovskite structure that are promising for ferroelectric randam access memory (FeRAM) due to their ferroelectric and fatigue property are synthesized by polymerizable complex method in which powder with high homogeneity and large specific surface area are obtained, and their photocatalytic properties for water splitting under UV-light irradiation were measured.

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