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Photocatalytic Performance of Barium-doped Strontium Tantalate
Kozu Asuka,Fujimori Hirotaka,Kim Ki-Young,Oshiro Kazunori,Yamamoto Setsuo,Sakata Yoshihisa,Imamura Hayao 한국분말야금학회 2006 한국분말야금학회 학술대회논문집 Vol.2006 No.1
Sr2Ta2O7, a layered perovskite compound, has been reported to possess most excellent photocatalytic properties among the layered perovskite materials. Recently, we have demonstrated that Ba5Ta4O15 that was prepared under a mol ratio of Ba: Ta=1:1 has high photocatalytic performance as well as Sr2Ta2O7. 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 Sr2Ta2O7.