STUDY OF PHENOL PHOTODEGRADATION WITH TiO2/-WO3 COUPLED SEMICONDUCTORS ACTIVATED BY VISIBLE LIGHT

Gómez H.; Orellana, F.; Lizama, H; Mansilla, HD; Dalchiele, EA

Abstract

The photo-degradation of phenol was studied employing the TiO2/WO3 semiconductors coupled, activated with visible light.Results show that the photo-degradation efficiency depends on the mixture composition. The best performance was found with aTiO2/-6% WO3 mixture that presented a photo-degradation that was 20 times greater than for TiO2/ commercial alone. This behavior is explained in terms of the increase in the hydrophilic character of the coupled semiconductors, the improvement in the kinetics of separation of the electron/hole pair through the transfer of cationic holes towards the valence band of TiO2/ and, the formation of W(V)species in WO3

Más información

Título según WOS: Study of phenol photodegradation with TiO2-WO3 coupled semiconductors activated by visible light
Título según SCOPUS: Study of phenol photodegradation with TiO2/-WO3 coupled semiconductors activated by visible light
Título según SCIELO: STUDY OF PHENOL PHOTODEGRADATION WITH TiO2/-WO3 COUPLED SEMICONDUCTORS ACTIVATED BY VISIBLE LIGHT
Título de la Revista: JOURNAL OF THE CHILEAN CHEMICAL SOCIETY
Volumen: 51
Número: 4
Editorial: 2013
Fecha de publicación: 2006
Página de inicio: 1006
Página final: 1009
Idioma: English
DOI:

10.4067/S0717-97072006000400002

Notas: ISI, SCIELO, SCOPUS