Research Center for Advanced Science and Technology, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8904, Japan.
J Am Chem Soc. 2010 May 26;132(20):6898-9. doi: 10.1021/ja101714s.
Through the use of a strategy that involves narrowing the TiO(2) 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 TiO(2) photocatalyst, Cu(II)-grafted Ti(1-3x)W(x)Ga(2x)O(2), was designed and synthesized. The Cu(II)/Ti(1-3x)W(x)Ga(2x)O(2) photocatalyst produced high activity under visible-light irradiation. In fact, it decomposed 2-propanol to CO(2) 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.
通过采用一种策略，通过将 TiO(2) 的导带正移来缩小其带隙并利用光生 Cu(I) 的催化活性进行氧还原，设计并合成了一种新型的可见光敏感 TiO(2) 光催化剂，Cu(II)-接枝 Ti(1-3x)W(x)Ga(2x)O(2)。Cu(II)/Ti(1-3x)W(x)Ga(2x)O(2)光催化剂在可见光照射下表现出高活性。事实上，它在可见光（>400nm）下通过丙酮将 2-丙醇分解为 CO(2)，量子效率高达 13%。该反应的周转数超过 22，表明它具有催化作用。
