Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5363895 | Applied Surface Science | 2008 | 5 Pages |
Abstract
The visible-light photocatalytic behavior of two different N-doped TiO2 correlated with their physicochemical properties was investigated. The results show that N-TiO2-1, prepared by a novel TiO2 with unique defect structure, is more active in visible-light photocatalytic oxidation of C3H6 than N-TiO2-2, prepared by standard P25-TiO2 (Degussa). The specific rate constant of the former is ca. 5 times that of the latter. One model of photoactive center (Vo-NO-Ti) in anatase phase responsible for the visible-light photocatalytic activity is proposed. The higher the Vo-NO-Ti concentration is, the better the visible-light photocatalytic activity is.
Related Topics
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Authors
Jiwei Zhang, Yan Wang, Zhensheng Jin, Zhishen Wu, Zhijun Zhang,