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  • Conduction Band Energy Leve...
    Yu, Huogen; Irie, Hiroshi; Hashimoto, Kazuhito

    Journal of the American Chemical Society, 05/2010, Letnik: 132, Številka: 20
    Journal Article

    Through the use of a strategy that involves narrowing the TiO2 band gap by shifting its conduction band positively and utilizing the catalytic activity of photoproduced Cu(I) for oxygen reduction, a novel visible-light-sensitive TiO2 photocatalyst, Cu(II)-grafted Ti1−3x W x Ga2x O2, was designed and synthesized. The Cu(II)/Ti1−3x W x Ga2x O2 photocatalyst produced high activity under visible-light irradiation. In fact, it decomposed 2-propanol to CO2 via acetone under visible light (>400 nm) with a high quantum efficiency of 13%. The turnover number for this reaction exceeded 22, indicating that it functioned catalytically.