Phenol Photodegradation on Platinized-TiO 2 Photocatalysts Related to Charge-Carrier Dynamics

Autores
Emilio, Carina A.; Litter, Marta Irene; Kunst, Marinus; Bouchard, Michel; Colbeau Justin, Christophe
Año de publicación
2006
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Three commercial TiO2 compounds (Degussa-P25, Sachtleben-UV100, Millenium-PC50) and their platinized forms have been studied by the Time Resolved Microwave Conductivity (TRMC) method, to follow their charge-carrier dynamics and to relate it to the photocatalytic activity for phenol degradation in TiO2-aqueous suspensions. The degradation reaction has been studied in detail, following the time evolution of the concentration of phenol and its intermediates by liquid chromatography. The results show that platinization has a distinct influence on the commercial compounds, decreasing globally the activity of P25 and increasing the activity of PC50 and UV100. An influence of charge-carrier lifetimes on the photoactivity of pure and platinized TiO2 samples has been evidenced.
Fil: Emilio, Carina A.. Comisión Nacional de Energía Atómica; Argentina
Fil: Litter, Marta Irene. Comisión Nacional de Energía Atómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Kunst, Marinus. No especifíca;
Fil: Bouchard, Michel. Universite de Paris 13-Nord; Francia
Fil: Colbeau Justin, Christophe. Universite de Paris 13-Nord; Francia
Materia
TITANIUM DIOXIDE
PHOTOCATALYSIS
PLATINIZED TIO2
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/244784
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Phenol Photodegradation on Platinized-TiO 2 Photocatalysts Related to Charge-Carrier DynamicsEmilio, Carina A.Litter, Marta IreneKunst, MarinusBouchard, MichelColbeau Justin, ChristopheTITANIUM DIOXIDEPHOTOCATALYSISPLATINIZED TIO2https://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Three commercial TiO2 compounds (Degussa-P25, Sachtleben-UV100, Millenium-PC50) and their platinized forms have been studied by the Time Resolved Microwave Conductivity (TRMC) method, to follow their charge-carrier dynamics and to relate it to the photocatalytic activity for phenol degradation in TiO2-aqueous suspensions. The degradation reaction has been studied in detail, following the time evolution of the concentration of phenol and its intermediates by liquid chromatography. The results show that platinization has a distinct influence on the commercial compounds, decreasing globally the activity of P25 and increasing the activity of PC50 and UV100. An influence of charge-carrier lifetimes on the photoactivity of pure and platinized TiO2 samples has been evidenced.Fil: Emilio, Carina A.. Comisión Nacional de Energía Atómica; ArgentinaFil: Litter, Marta Irene. Comisión Nacional de Energía Atómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Kunst, Marinus. No especifíca;Fil: Bouchard, Michel. Universite de Paris 13-Nord; FranciaFil: Colbeau Justin, Christophe. Universite de Paris 13-Nord; FranciaAmerican Chemical Society2006-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/244784Emilio, Carina A.; Litter, Marta Irene; Kunst, Marinus; Bouchard, Michel; Colbeau Justin, Christophe; Phenol Photodegradation on Platinized-TiO 2 Photocatalysts Related to Charge-Carrier Dynamics; American Chemical Society; Langmuir; 22; 8; 3-2006; 3606-36130743-7463CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/la051962sinfo:eu-repo/semantics/altIdentifier/doi/10.1021/la051962sinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:45:48Zoai:ri.conicet.gov.ar:11336/244784instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:45:48.755CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Phenol Photodegradation on Platinized-TiO 2 Photocatalysts Related to Charge-Carrier Dynamics
title Phenol Photodegradation on Platinized-TiO 2 Photocatalysts Related to Charge-Carrier Dynamics
spellingShingle Phenol Photodegradation on Platinized-TiO 2 Photocatalysts Related to Charge-Carrier Dynamics
Emilio, Carina A.
TITANIUM DIOXIDE
PHOTOCATALYSIS
PLATINIZED TIO2
title_short Phenol Photodegradation on Platinized-TiO 2 Photocatalysts Related to Charge-Carrier Dynamics
title_full Phenol Photodegradation on Platinized-TiO 2 Photocatalysts Related to Charge-Carrier Dynamics
title_fullStr Phenol Photodegradation on Platinized-TiO 2 Photocatalysts Related to Charge-Carrier Dynamics
title_full_unstemmed Phenol Photodegradation on Platinized-TiO 2 Photocatalysts Related to Charge-Carrier Dynamics
title_sort Phenol Photodegradation on Platinized-TiO 2 Photocatalysts Related to Charge-Carrier Dynamics
dc.creator.none.fl_str_mv Emilio, Carina A.
Litter, Marta Irene
Kunst, Marinus
Bouchard, Michel
Colbeau Justin, Christophe
author Emilio, Carina A.
author_facet Emilio, Carina A.
Litter, Marta Irene
Kunst, Marinus
Bouchard, Michel
Colbeau Justin, Christophe
author_role author
author2 Litter, Marta Irene
Kunst, Marinus
Bouchard, Michel
Colbeau Justin, Christophe
author2_role author
author
author
author
dc.subject.none.fl_str_mv TITANIUM DIOXIDE
PHOTOCATALYSIS
PLATINIZED TIO2
topic TITANIUM DIOXIDE
PHOTOCATALYSIS
PLATINIZED TIO2
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Three commercial TiO2 compounds (Degussa-P25, Sachtleben-UV100, Millenium-PC50) and their platinized forms have been studied by the Time Resolved Microwave Conductivity (TRMC) method, to follow their charge-carrier dynamics and to relate it to the photocatalytic activity for phenol degradation in TiO2-aqueous suspensions. The degradation reaction has been studied in detail, following the time evolution of the concentration of phenol and its intermediates by liquid chromatography. The results show that platinization has a distinct influence on the commercial compounds, decreasing globally the activity of P25 and increasing the activity of PC50 and UV100. An influence of charge-carrier lifetimes on the photoactivity of pure and platinized TiO2 samples has been evidenced.
Fil: Emilio, Carina A.. Comisión Nacional de Energía Atómica; Argentina
Fil: Litter, Marta Irene. Comisión Nacional de Energía Atómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Kunst, Marinus. No especifíca;
Fil: Bouchard, Michel. Universite de Paris 13-Nord; Francia
Fil: Colbeau Justin, Christophe. Universite de Paris 13-Nord; Francia
description Three commercial TiO2 compounds (Degussa-P25, Sachtleben-UV100, Millenium-PC50) and their platinized forms have been studied by the Time Resolved Microwave Conductivity (TRMC) method, to follow their charge-carrier dynamics and to relate it to the photocatalytic activity for phenol degradation in TiO2-aqueous suspensions. The degradation reaction has been studied in detail, following the time evolution of the concentration of phenol and its intermediates by liquid chromatography. The results show that platinization has a distinct influence on the commercial compounds, decreasing globally the activity of P25 and increasing the activity of PC50 and UV100. An influence of charge-carrier lifetimes on the photoactivity of pure and platinized TiO2 samples has been evidenced.
publishDate 2006
dc.date.none.fl_str_mv 2006-03
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/244784
Emilio, Carina A.; Litter, Marta Irene; Kunst, Marinus; Bouchard, Michel; Colbeau Justin, Christophe; Phenol Photodegradation on Platinized-TiO 2 Photocatalysts Related to Charge-Carrier Dynamics; American Chemical Society; Langmuir; 22; 8; 3-2006; 3606-3613
0743-7463
CONICET Digital
CONICET
url http://hdl.handle.net/11336/244784
identifier_str_mv Emilio, Carina A.; Litter, Marta Irene; Kunst, Marinus; Bouchard, Michel; Colbeau Justin, Christophe; Phenol Photodegradation on Platinized-TiO 2 Photocatalysts Related to Charge-Carrier Dynamics; American Chemical Society; Langmuir; 22; 8; 3-2006; 3606-3613
0743-7463
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/la051962s
info:eu-repo/semantics/altIdentifier/doi/10.1021/la051962s
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1842268754707218432
score 13.13397

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