The important role of tetrahedral Ti4+ sites in the phase transformation and photocatalytic activity of TiO2 nanocomposites

被引:177
作者
Li, Gonghu [1 ]
Dimitrijevic, Nada M. [2 ]
Chen, Le [1 ]
Nichols, Jamie M. [1 ]
Rajh, Tijana [2 ]
Gray, Kimberly A. [1 ]
机构
[1] Northwestern Univ, Inst Catalysis Energy Proc, Dept Civil & Environm Engn, Evanston, IL 60208 USA
[2] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA
关键词
D O I
10.1021/ja711118u
中图分类号
O6 [化学];
学科分类号
0703 [化学];
摘要
Highly photoactive, tetrahedral Ti4+ sites can be created, other than in zeolite cavities and on silica substrate, in mixed-phase TiO2 nanocomposites. The tetrahedral Ti4+ species was shown to be an intermediate formed during the thermally driven phase transformation from anatase to futile.
引用
收藏
页码:5402 / +
页数:3
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