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Transition metal doped TiO2: physical properties and photocatalytic behaviour
| Title: | Transition metal doped TiO2: physical properties and photocatalytic behaviour |
| Authors: | Di Paola, Agatino Browse this author | | Ikeda, Shigeru Browse this author →KAKEN DB | | Marcì, Giuseppe Browse this author | | Ohtani, Bunsho Browse this author →KAKEN DB | | Palmisano, Leonardo Browse this author |
| Issue Date: | 2001 |
| Publisher: | Hindawi |
| Journal Title: | International journal of photoenergy |
| Volume: | 3 |
| Issue: | 4 |
| Start Page: | 171 |
| End Page: | 176 |
| Publisher DOI: | 10.1155/S1110662X01000216 |
| Abstract: | Two probe photocatalytic reactions, i.e. ethanoic acid and 4-nitrophenol photooxidation, were carried out in different experimental conditions by using suspensions of transition metal (Co, Cr, Cu, Fe, Mo, V and W) doped polycrystalline TiO2 powders in aqueous systems. A beneficial influence of the presence of metal species was observed only with the samples containing copper and tungsten. In particular, the TiO2/Cu powders showed to be more photoactive of bare TiO2 for the ethanoic acid oxidation while the TiO2/W samples were more efficient for 4-nitrophenol degradation. A tentative interpretation is provided on the basis of the values of the points of zero charge of the powders and of the rate constants of recombination of photogenerated electrons and holes, determined by femtosecond pump-probe diffuse reflectance spectroscopy (PP-DRS). |
| Type: | article |
| URI: | http://hdl.handle.net/2115/52761 |
| Appears in Collections: | 触媒科学研究所 (Institute for Catalysis) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 大谷 文章
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