Proceedings of the Korean Powder Metallurgy Institute Conference (한국분말야금학회:학술대회논문집)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Photocatalytic Performance of Barium-doped Strontium Tantalate

  • Kozu, Asuka (Applied Medical Engineering Science, Graduate School of Medicine, Yamaguchi University) ;
  • Fujimori, Hirotaka (Applied Medical Engineering Science, Graduate School of Medicine, Yamaguchi University) ;
  • Kim, Ki-Young (Applied Medical Engineering Science, Graduate School of Medicine, Yamaguchi University) ;
  • Oshiro, Kazunori (Applied Medical Engineering Science, Graduate School of Medicine, Yamaguchi University) ;
  • Yamamoto, Setsuo (Applied Medical Engineering Science, Graduate School of Medicine, Yamaguchi University) ;
  • Sakata, Yoshihisa (Department of Advanced Materials Science and Engineering, Faculty of Engineering, Yamaguchi University) ;
  • Imamura, Hayao (Department of Advanced Materials Science and Engineering, Faculty of Engineering, Yamaguchi University)
  • Published : 2006.09.24
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Abstract

[ $Sr_2Ta_2O_7$ ], a layered perovskite compound, has been reported to possess most excellent photocatalytic properties among the layered perovskite materials. Recently, we have demonstrated that $Ba_5Ta_4O_{15}$ that was prepared under a mol ratio of Ba: Ta=1:1 has high photocatalytic performance as well as $Sr_2Ta_2O_7$. In this study, the photocatalyst samples with a mol ratio of Sr: Ba: Ta = (1-x): x: 1 were prepared. The maximum photocatalytic performance was obtained for x= 0.2, which is three times as high as that of undoped $Sr_2Ta_2O_7$.

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