Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/41633
Title: Efect of Ti–F surface interaction on the photocatalytic degradation of phenol, aniline and formic acid
Authors: El-Alami, W.
Garzón Sousa, D. 
Fernández-Rodríguez, C. 
González Díaz, O. 
Doña Rodríguez, J. M. 
El Azzouzi, M.
Araña, J. 
UNESCO Clasification: 23 Química
Keywords: F-TiO2
FTIR
Phenol
Aniline
Formic acid
Issue Date: 2017
Journal: Journal of Photochemistry and Photobiology A: Chemistry 
Abstract: A study is undertaken of the effect of fluorinating two TiO2catalysts, both with the same surface area but one composed only of pure anatase phase (SA) and the other of mixed anatase and rutile phases (P25), on the degradation of phenol, formic acid and aniline. The catalysts were characterised by FTIR, BET, EDAXs, SEM, XRD and DRS-UV–vis studies. The method used for synthesis of the F-P25 and F-SA resulted in fluorinated catalysts with properties different to those of other fluorinated catalysts reported in the bibliography. The results obtained show that, unlike other studies in which the formation of free hydroxyl radicals ([rad]OHfree) was enhanced with the fluorinated catalysts, in the F-P25 and F-SA catalysts it was the formation of surface hydroxyl radicals ([rad]OHsurf) which was significantly enhanced. In this way, the F-P25 and F-SA catalysts gave rise to higher degradation rate constants of phenol (kphenol), aniline (kaniline) and formic acid (kformic) than the P25 and SA catalysts.
URI: http://hdl.handle.net/10553/41633
ISSN: 1010-6030
DOI: 10.1016/j.jphotochem.2017.08.010
Source: Journal of Photochemistry and Photobiology A: Chemistry [ISSN 1010-6030], v. 348 (1). p. 139-149
URL: https://api.elsevier.com/content/abstract/scopus_id/85028383309
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