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Title: TiO2 and F-TiO2 photocatalytic deactivation in gas phase
Authors: El-Alami, W.
Garzón Sousa, Davinia 
Díaz González, José Manuel
Fernández Rodríguez, Cristina 
Gonzalez-Diaz, Oscar M. 
Doña-Rodríguez, J.M 
El Azzouzi, M.
Araña, J. 
UNESCO Clasification: 23 Química
330301 Tecnología de la catálisis
3303 ingeniería y tecnología químicas
Keywords: TiO2
Issue Date: 2017
Project: Eliminacion Fotocatalitica de Mezclas de Nox y Covs en Emisiones Gaseosas Con Ti02 y Oxidos Mixtos. 
Sistema Completo de Caracterización de la Relación Entre Composición, Estructura y Fotoactividad de Sólidos Sintéticos Con Aplicaciones Fotocatalíticas. 
Journal: Chemical physics letters (Print) 
Abstract: TiO2 deactivation processes during gas-phase degradation of ethanol were studied. To force the deactivation processes, various cycles were performed, avoiding the degradation of acetates. It was observed that acetates adsorbed on the anatase phase of catalysts provoke the transference of electrons to surface traps which modify the electron states of the semiconductor. The same deactivation studies were also performed with fluorinated TiO2. It was noted that the electrons present in the surface traps, as a consequence of the Ti-F interaction, react with the holes during irradiation and provoke a change in the electron states of the semiconductor.
ISSN: 0009-2614
DOI: 10.1016/j.cplett.2017.06.056
Source: Chemical Physics Letters [ISSN 0009-2614], v. 684, p. 164-170
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