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

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...

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Autores principales:	GÓMEZ,H, ORELLANA,F, LIZAMA,H, MANSILLA,H. D., DALCHIELE,E.A.
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2006
Materias:	WO3/TiO2/ semiconductors coupling photocatalysis phenol visible light activation
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072006000400002
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spelling	oai:scielo:S0717-970720060004000022007-03-08STUDY OF PHENOL PHOTODEGRADATION WITH TiO2/-WO3 COUPLED SEMICONDUCTORS ACTIVATED BY VISIBLE LIGHTGÓMEZ,HORELLANA,FLIZAMA,HMANSILLA,H. D.DALCHIELE,E.A. WO3/TiO2/ semiconductors coupling photocatalysis phenol visible light activation 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 WO3info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.51 n.4 20062006-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072006000400002en10.4067/S0717-97072006000400002
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	WO3/TiO2/ semiconductors coupling photocatalysis phenol visible light activation
spellingShingle	WO3/TiO2/ semiconductors coupling photocatalysis phenol visible light activation GÓMEZ,H ORELLANA,F LIZAMA,H MANSILLA,H. D. DALCHIELE,E.A. STUDY OF PHENOL PHOTODEGRADATION WITH TiO2/-WO3 COUPLED SEMICONDUCTORS ACTIVATED BY VISIBLE LIGHT
description	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
author	GÓMEZ,H ORELLANA,F LIZAMA,H MANSILLA,H. D. DALCHIELE,E.A.
author_facet	GÓMEZ,H ORELLANA,F LIZAMA,H MANSILLA,H. D. DALCHIELE,E.A.
author_sort	GÓMEZ,H
title	STUDY OF PHENOL PHOTODEGRADATION WITH TiO2/-WO3 COUPLED SEMICONDUCTORS ACTIVATED BY VISIBLE LIGHT
title_short	STUDY OF PHENOL PHOTODEGRADATION WITH TiO2/-WO3 COUPLED SEMICONDUCTORS ACTIVATED BY VISIBLE LIGHT
title_full	STUDY OF PHENOL PHOTODEGRADATION WITH TiO2/-WO3 COUPLED SEMICONDUCTORS ACTIVATED BY VISIBLE LIGHT
title_fullStr	STUDY OF PHENOL PHOTODEGRADATION WITH TiO2/-WO3 COUPLED SEMICONDUCTORS ACTIVATED BY VISIBLE LIGHT
title_full_unstemmed	STUDY OF PHENOL PHOTODEGRADATION WITH TiO2/-WO3 COUPLED SEMICONDUCTORS ACTIVATED BY VISIBLE LIGHT
title_sort	study of phenol photodegradation with tio2/-wo3 coupled semiconductors activated by visible light
publisher	Sociedad Chilena de Química
publishDate	2006
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072006000400002
work_keys_str_mv	AT gomezh studyofphenolphotodegradationwithtio2wo3coupledsemiconductorsactivatedbyvisiblelight AT orellanaf studyofphenolphotodegradationwithtio2wo3coupledsemiconductorsactivatedbyvisiblelight AT lizamah studyofphenolphotodegradationwithtio2wo3coupledsemiconductorsactivatedbyvisiblelight AT mansillahd studyofphenolphotodegradationwithtio2wo3coupledsemiconductorsactivatedbyvisiblelight AT dalchieleea studyofphenolphotodegradationwithtio2wo3coupledsemiconductorsactivatedbyvisiblelight
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STUDY OF PHENOL PHOTODEGRADATION WITH TiO2/-WO3 COUPLED SEMICONDUCTORS ACTIVATED BY VISIBLE LIGHT

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