Fabrication of Sr0.5Ba0.5Nb2O6-precipitated microstructured ceramics for photocatalytic application

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概要

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• We have succeeded in preparing Sr0.5Ba0.5Nb2O6 (SBN50)-precipitated ceramics by acid etching via a glass-ceramic process using SrO–BaO–Nb2O5–B2O3–ZnO–SiO2 glasses. Although the mother glass has good resistance to acid etching, the phase separated glass-ceramic obtained by crystallization was easily etched. This phase separation process was favorable for removing the amorphous B2O3–ZnO phase and a superfluous crystalline phase. Addition of SiO2, substituted for B2O3, was effective for maintaining the bulk structure of the SBN50-etched ceramic because of its ability to form a strong and chemically stable network. We have found that the SBN50-precipitated ceramic demonstrates photocatalytic activity, which is the first report on the activity of SBN50.

著者

• Takahashi Yoshihiro

  Department Of Applied Physics School Of Engineering Tohoku University

• Masai Hirokazu

  Department Of Applied Physics School Of Engineering Tohoku University

• Takahashi Y

  Tanaka Solid Junction Project Erato Japan Science And Research Corporation

• IHARA Rie

  Department of Applied Physics, Tohoku University

• Fujiwara Takumi

  Department Of Applied Physics School Of Engineering Tohoku University

• Takahashi Yoichi

  Department Of Nuclear Engineering Faculty Of Engineering University Of Tokyo

• Takahashi Yukihiro

  Central Research Laboratory Matsushita Electric Industrial Co. Ltd.

• Takahashi Y

  Department Of Applied Physics School Of Engineering Tohoku University

• Takahashi Yoshinori

  Division Of Electrical Electronic And Information Engineering Osaka University

• Yoshida Kazuki

  Department Of Chemistry And Biotechnology Yokohama National University

• Takahashi Y

  National Inst. Animal Health Ibaraki Jpn

• MASAI Hirokazu

  Institute for Chemical Research, Kyoto University

• Takahashi Y

  Department Of Molecular & Materials Sciences Kyushu University

• Takahashi Yoshihiro

  Department Of Applied Physics Osaka City University

• YOSHIDA Kazuki

  Department of Applied Physics, Tohoku University

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