Transition metal doped TiO2: physical properties and photocatalytic behaviour

Di Paola, Agatino; Ikeda, Shigeru; Marcì, Giuseppe; Ohtani, Bunsho; Palmisano, Leonardo

Transition metal doped TiO2: physical properties and photocatalytic behaviour

Di Paola, Agatino; Ikeda, Shigeru; Marcì, Giuseppe et al.

International journal of photoenergy, 2001, 3(4), 171-176

Permalink : https://hdl.handle.net/2115/52761

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アクセス権	open access
URI	https://hdl.handle.net/2115/52761
タイトル	Transition metal doped TiO2: physical properties and photocatalytic behaviour
著者	Di Paola, Agatino ; Ikeda, Shigeru ; Marcì, Giuseppe ; Ohtani, Bunsho ; Palmisano, Leonardo
著者名 Di Paola, Agatino
e-Rad_Researcher 40312417 著者名 Ikeda, Shigeru
著者名 Marcì, Giuseppe
e-Rad_Researcher 80176924 著者名 Ohtani, Bunsho
著者名 Palmisano, Leonardo
言語	英語
発行日	2001
出版者	Hindawi
収録物名	International journal of photoenergy
巻(号)	3(4)
ページ	171-176
抄録	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).
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
PISSN	1687-529X
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1155/S1110662X01000216