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|Title: ||Enhanced photocatalytic formation of hydroxyl radicals on fluorinated TiO2|
|Authors: ||SELLI, ELENA (Last author)|
MROWETZ, MARTA (First author)
|Abstract: ||Direct experimental evidence of the higher concentration of hydroxyl radicals generated on fluorinated titanium dioxide (F - TiO2) under irradiation was obtained by spin-trapping EPR measurements. The faster photoinduced bleaching of the azo dye Acid Red 1 (AR1) observed in the presence of F - TiO2 was explained by the high affinity of the azo double bond towards OH radicals. Moreover, the pronounced decrease of the AR1 bleaching rate by addition of 2-propanol, as hydroxyl radicals scavenger, on F - TiO2 and not on naked TiO2 demonstrated that on fluorinated titania AR1 is mainly degraded via OH radical attack.|
|MIUR subjects: ||CHIM/02 - Chimica Fisica|
|Publication date: ||2005|
|Digital Object Identifier (DOI): ||10.1039/b500194c|
|Citation: ||Enhanced photocatalytic formation of hydroxyl radicals on fluorinated TiO2 / M. Mrowetz, E. Selli. - In: Physical chemistry chemical physics. - ISSN 1463-9076. - ISSN 1463-9084. - 7:6(2005), pp. 1100-1102.|
|ISI identifier: ||000227386800003|
|Scopus identifier: ||16244387654|
|Type: ||Article (author)|
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