Ceria Promotion of Acetaldehyde Photo-oxidation in a TiO2-based Catalyst: a Spectroscopic and Kinetic Study

Autores
Muñoz Batista, M. J.; Ballari, Maria de Los Milagros; Cassano, Alberto Enrique; Alfano, Orlando Mario; Kubacka, A.; Fernandez Garcia, M.
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A spectroscopic and kinetic study of the photo-oxidation of acetaldehyde with a CeO2-TiO2 composite catalyst is presented. Both UV and visible illumination conditions were tested. The study focuses on analysing the role of ceria in the photocatalytic behaviour by contrasting the CeO2-TiO2 behaviour with that of the appropriate TiO2 reference. To this end, we developed an intrinsic kinetic expression with explicit inclusion of the effect of photon absorption on the reaction rate as well as a reaction scheme proposed on the basis of combined Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS) and Electron Paramagnetic Resonance (EPR) characterization. The combination of spectroscopic and kinetic tools provides quantitative evidence that the oxide-oxide contact controls the activity of the composite catalyst through the number of hole-related species able to attack the pollutant, this in turn being related to the influence of ceria defects on charge carrier fate. The abovementioned key properties controlling photoactivity are the same for UV and visible excitation, producing a highly active photocatalyst suitable for sunlight applications.
Fil: Muñoz Batista, M. J.. Consejo Superior de Investigaciones Cientificas. Instituto de Catalisis y Petroquímica; España
Fil: Ballari, Maria de Los Milagros. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico Para la Industria Química (i); Argentina
Fil: Cassano, Alberto Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico Para la Industria Química (i); Argentina
Fil: Alfano, Orlando Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico Para la Industria Química (i); Argentina
Fil: Kubacka, A.. Consejo Superior de Investigaciones Cientificas. Instituto de Catalisis y Petroquímica; España
Fil: Fernandez Garcia, M.. Consejo Superior de Investigaciones Cientificas. Instituto de Catalisis y Petroquímica; España
Materia
Photo-Oxidation
Tio2
Kinetic Study
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:11336/10058
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/10058
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Ceria Promotion of Acetaldehyde Photo-oxidation in a TiO2-based Catalyst: a Spectroscopic and Kinetic StudyMuñoz Batista, M. J.Ballari, Maria de Los MilagrosCassano, Alberto EnriqueAlfano, Orlando MarioKubacka, A.Fernandez Garcia, M.Photo-OxidationTio2Kinetic Studyhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2A spectroscopic and kinetic study of the photo-oxidation of acetaldehyde with a CeO2-TiO2 composite catalyst is presented. Both UV and visible illumination conditions were tested. The study focuses on analysing the role of ceria in the photocatalytic behaviour by contrasting the CeO2-TiO2 behaviour with that of the appropriate TiO2 reference. To this end, we developed an intrinsic kinetic expression with explicit inclusion of the effect of photon absorption on the reaction rate as well as a reaction scheme proposed on the basis of combined Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS) and Electron Paramagnetic Resonance (EPR) characterization. The combination of spectroscopic and kinetic tools provides quantitative evidence that the oxide-oxide contact controls the activity of the composite catalyst through the number of hole-related species able to attack the pollutant, this in turn being related to the influence of ceria defects on charge carrier fate. The abovementioned key properties controlling photoactivity are the same for UV and visible excitation, producing a highly active photocatalyst suitable for sunlight applications.Fil: Muñoz Batista, M. J.. Consejo Superior de Investigaciones Cientificas. Instituto de Catalisis y Petroquímica; EspañaFil: Ballari, Maria de Los Milagros. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico Para la Industria Química (i); ArgentinaFil: Cassano, Alberto Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico Para la Industria Química (i); ArgentinaFil: Alfano, Orlando Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico Para la Industria Química (i); ArgentinaFil: Kubacka, A.. Consejo Superior de Investigaciones Cientificas. Instituto de Catalisis y Petroquímica; EspañaFil: Fernandez Garcia, M.. Consejo Superior de Investigaciones Cientificas. Instituto de Catalisis y Petroquímica; EspañaRoyal Society of Chemistry2015-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/10058Muñoz Batista, M. J.; Ballari, Maria de Los Milagros; Cassano, Alberto Enrique; Alfano, Orlando Mario; Kubacka, A.; et al.; Ceria Promotion of Acetaldehyde Photo-oxidation in a TiO2-based Catalyst: a Spectroscopic and Kinetic Study; Royal Society of Chemistry; Catalysis Science & Technology; 5; 3; 1-2015; 1521-15312044-4753enginfo:eu-repo/semantics/altIdentifier/doi/10.1039/c4cy01293cinfo:eu-repo/semantics/altIdentifier/url/http://pubs.rsc.org/en/Content/ArticleLanding/2015/CY/C4CY01293C#!divAbstractinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:07:46Zoai:ri.conicet.gov.ar:11336/10058instacron: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:34982025-09-10 13:07:46.977CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Ceria Promotion of Acetaldehyde Photo-oxidation in a TiO2-based Catalyst: a Spectroscopic and Kinetic Study
title Ceria Promotion of Acetaldehyde Photo-oxidation in a TiO2-based Catalyst: a Spectroscopic and Kinetic Study
spellingShingle Ceria Promotion of Acetaldehyde Photo-oxidation in a TiO2-based Catalyst: a Spectroscopic and Kinetic Study
Muñoz Batista, M. J.
Photo-Oxidation
Tio2
Kinetic Study
title_short Ceria Promotion of Acetaldehyde Photo-oxidation in a TiO2-based Catalyst: a Spectroscopic and Kinetic Study
title_full Ceria Promotion of Acetaldehyde Photo-oxidation in a TiO2-based Catalyst: a Spectroscopic and Kinetic Study
title_fullStr Ceria Promotion of Acetaldehyde Photo-oxidation in a TiO2-based Catalyst: a Spectroscopic and Kinetic Study
title_full_unstemmed Ceria Promotion of Acetaldehyde Photo-oxidation in a TiO2-based Catalyst: a Spectroscopic and Kinetic Study
title_sort Ceria Promotion of Acetaldehyde Photo-oxidation in a TiO2-based Catalyst: a Spectroscopic and Kinetic Study
dc.creator.none.fl_str_mv Muñoz Batista, M. J.
Ballari, Maria de Los Milagros
Cassano, Alberto Enrique
Alfano, Orlando Mario
Kubacka, A.
Fernandez Garcia, M.
author Muñoz Batista, M. J.
author_facet Muñoz Batista, M. J.
Ballari, Maria de Los Milagros
Cassano, Alberto Enrique
Alfano, Orlando Mario
Kubacka, A.
Fernandez Garcia, M.
author_role author
author2 Ballari, Maria de Los Milagros
Cassano, Alberto Enrique
Alfano, Orlando Mario
Kubacka, A.
Fernandez Garcia, M.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Photo-Oxidation
Tio2
Kinetic Study
topic Photo-Oxidation
Tio2
Kinetic Study
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv A spectroscopic and kinetic study of the photo-oxidation of acetaldehyde with a CeO2-TiO2 composite catalyst is presented. Both UV and visible illumination conditions were tested. The study focuses on analysing the role of ceria in the photocatalytic behaviour by contrasting the CeO2-TiO2 behaviour with that of the appropriate TiO2 reference. To this end, we developed an intrinsic kinetic expression with explicit inclusion of the effect of photon absorption on the reaction rate as well as a reaction scheme proposed on the basis of combined Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS) and Electron Paramagnetic Resonance (EPR) characterization. The combination of spectroscopic and kinetic tools provides quantitative evidence that the oxide-oxide contact controls the activity of the composite catalyst through the number of hole-related species able to attack the pollutant, this in turn being related to the influence of ceria defects on charge carrier fate. The abovementioned key properties controlling photoactivity are the same for UV and visible excitation, producing a highly active photocatalyst suitable for sunlight applications.
Fil: Muñoz Batista, M. J.. Consejo Superior de Investigaciones Cientificas. Instituto de Catalisis y Petroquímica; España
Fil: Ballari, Maria de Los Milagros. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico Para la Industria Química (i); Argentina
Fil: Cassano, Alberto Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico Para la Industria Química (i); Argentina
Fil: Alfano, Orlando Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico Para la Industria Química (i); Argentina
Fil: Kubacka, A.. Consejo Superior de Investigaciones Cientificas. Instituto de Catalisis y Petroquímica; España
Fil: Fernandez Garcia, M.. Consejo Superior de Investigaciones Cientificas. Instituto de Catalisis y Petroquímica; España
description A spectroscopic and kinetic study of the photo-oxidation of acetaldehyde with a CeO2-TiO2 composite catalyst is presented. Both UV and visible illumination conditions were tested. The study focuses on analysing the role of ceria in the photocatalytic behaviour by contrasting the CeO2-TiO2 behaviour with that of the appropriate TiO2 reference. To this end, we developed an intrinsic kinetic expression with explicit inclusion of the effect of photon absorption on the reaction rate as well as a reaction scheme proposed on the basis of combined Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS) and Electron Paramagnetic Resonance (EPR) characterization. The combination of spectroscopic and kinetic tools provides quantitative evidence that the oxide-oxide contact controls the activity of the composite catalyst through the number of hole-related species able to attack the pollutant, this in turn being related to the influence of ceria defects on charge carrier fate. The abovementioned key properties controlling photoactivity are the same for UV and visible excitation, producing a highly active photocatalyst suitable for sunlight applications.
publishDate 2015
dc.date.none.fl_str_mv 2015-01
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/11336/10058
Muñoz Batista, M. J.; Ballari, Maria de Los Milagros; Cassano, Alberto Enrique; Alfano, Orlando Mario; Kubacka, A.; et al.; Ceria Promotion of Acetaldehyde Photo-oxidation in a TiO2-based Catalyst: a Spectroscopic and Kinetic Study; Royal Society of Chemistry; Catalysis Science & Technology; 5; 3; 1-2015; 1521-1531
2044-4753
url http://hdl.handle.net/11336/10058
identifier_str_mv Muñoz Batista, M. J.; Ballari, Maria de Los Milagros; Cassano, Alberto Enrique; Alfano, Orlando Mario; Kubacka, A.; et al.; Ceria Promotion of Acetaldehyde Photo-oxidation in a TiO2-based Catalyst: a Spectroscopic and Kinetic Study; Royal Society of Chemistry; Catalysis Science & Technology; 5; 3; 1-2015; 1521-1531
2044-4753
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1039/c4cy01293c
info:eu-repo/semantics/altIdentifier/url/http://pubs.rsc.org/en/Content/ArticleLanding/2015/CY/C4CY01293C#!divAbstract
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
application/pdf
dc.publisher.none.fl_str_mv Royal Society of Chemistry
publisher.none.fl_str_mv Royal Society of Chemistry
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
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score 12.993085

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