Acetaldehyde degradation under UV and Visible irradiation using CeO2-TiO2 composite systems: Evaluation of the photocatalytic efficiencies

Autores
Muñoz Batista, Mario; Ballari, Maria de Los Milagros; Kubacka, Anna; Cassano, Alberto Enrique; Alfano, Orlando Mario; Fernández García, Marcos
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The photocatalytic activity under UV and visible irradiation of a series of CeO2-TiO2 composite materials prepared by microemulsion and subsequently calcined at 500 0C was evaluated using acetaldehyde as a model pollutant. The activities of three composite catalysts containing 2.5, 5 and 25 molar % of ceria, as well as a nano-titania reference are compared by means of efficiency parameters; the quantum (or true) efficiency, as well as the photonic (or apparent) efficiency were evaluated. To this end, the lamp emission properties, as well as the radiation field interaction with the catalyst inside the reactor were modelled and numerically calculated. For the evaluation of the radiation absorbed by the catalysts, the optical properties of the materials were measured and a radiative transfer model that considers all potential optical events was built up. The stability of the systems under reaction conditions was also studied. Overall, the results evidence that the composite containing 2.5 Ce mol. % outperforms titania by a factor of at least 2, irrespective of the illumination source used in the experiment. This shows the potential of the CeO2-TiO2 composites, a highly active and stable system, for sunlight optimum profiting.
Fil: Muñoz Batista, Mario. Consejo Superior de Investigaciones Cientificas. Instituto de Catálisis y Petroleoquímica; 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: Kubacka, Anna. Consejo Superior de Investigaciones Cientificas. Instituto de Catálisis y Petroleoquímica; España
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: Fernández García, Marcos. Consejo Superior de Investigaciones Cientificas. Instituto de Catálisis y Petroleoquímica; España
Materia
Photocatalysis
Efficiency
Radiation Absorption
Ceria
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:11336/9195
Acceder
id CONICETDig_9cc6ffbea51fe20bfac315c36ebe5d85
oai_identifier_str oai:ri.conicet.gov.ar:11336/9195
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Acetaldehyde degradation under UV and Visible irradiation using CeO2-TiO2 composite systems: Evaluation of the photocatalytic efficienciesMuñoz Batista, MarioBallari, Maria de Los MilagrosKubacka, AnnaCassano, Alberto EnriqueAlfano, Orlando MarioFernández García, MarcosPhotocatalysisEfficiencyRadiation AbsorptionCeriahttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2The photocatalytic activity under UV and visible irradiation of a series of CeO2-TiO2 composite materials prepared by microemulsion and subsequently calcined at 500 0C was evaluated using acetaldehyde as a model pollutant. The activities of three composite catalysts containing 2.5, 5 and 25 molar % of ceria, as well as a nano-titania reference are compared by means of efficiency parameters; the quantum (or true) efficiency, as well as the photonic (or apparent) efficiency were evaluated. To this end, the lamp emission properties, as well as the radiation field interaction with the catalyst inside the reactor were modelled and numerically calculated. For the evaluation of the radiation absorbed by the catalysts, the optical properties of the materials were measured and a radiative transfer model that considers all potential optical events was built up. The stability of the systems under reaction conditions was also studied. Overall, the results evidence that the composite containing 2.5 Ce mol. % outperforms titania by a factor of at least 2, irrespective of the illumination source used in the experiment. This shows the potential of the CeO2-TiO2 composites, a highly active and stable system, for sunlight optimum profiting.Fil: Muñoz Batista, Mario. Consejo Superior de Investigaciones Cientificas. Instituto de Catálisis y Petroleoquímica; 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: Kubacka, Anna. Consejo Superior de Investigaciones Cientificas. Instituto de Catálisis y Petroleoquímica; EspañaFil: 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: Fernández García, Marcos. Consejo Superior de Investigaciones Cientificas. Instituto de Catálisis y Petroleoquímica; EspañaElsevier2014-06info: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/11336/9195Muñoz Batista, Mario; Ballari, Maria de Los Milagros; Kubacka, Anna; Cassano, Alberto Enrique; Alfano, Orlando Mario; et al.; Acetaldehyde degradation under UV and Visible irradiation using CeO2-TiO2 composite systems: Evaluation of the photocatalytic efficiencies; Elsevier; Chemical Engineering Journal; 255; 6-2014; 297-3061385-8947enginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.cej.2014.06.056info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1385894714007876info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:39:29Zoai:ri.conicet.gov.ar:11336/9195instacron: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:34982025-10-15 15:39:29.591CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Acetaldehyde degradation under UV and Visible irradiation using CeO2-TiO2 composite systems: Evaluation of the photocatalytic efficiencies
title Acetaldehyde degradation under UV and Visible irradiation using CeO2-TiO2 composite systems: Evaluation of the photocatalytic efficiencies
spellingShingle Acetaldehyde degradation under UV and Visible irradiation using CeO2-TiO2 composite systems: Evaluation of the photocatalytic efficiencies
Muñoz Batista, Mario
Photocatalysis
Efficiency
Radiation Absorption
Ceria
title_short Acetaldehyde degradation under UV and Visible irradiation using CeO2-TiO2 composite systems: Evaluation of the photocatalytic efficiencies
title_full Acetaldehyde degradation under UV and Visible irradiation using CeO2-TiO2 composite systems: Evaluation of the photocatalytic efficiencies
title_fullStr Acetaldehyde degradation under UV and Visible irradiation using CeO2-TiO2 composite systems: Evaluation of the photocatalytic efficiencies
title_full_unstemmed Acetaldehyde degradation under UV and Visible irradiation using CeO2-TiO2 composite systems: Evaluation of the photocatalytic efficiencies
title_sort Acetaldehyde degradation under UV and Visible irradiation using CeO2-TiO2 composite systems: Evaluation of the photocatalytic efficiencies
dc.creator.none.fl_str_mv Muñoz Batista, Mario
Ballari, Maria de Los Milagros
Kubacka, Anna
Cassano, Alberto Enrique
Alfano, Orlando Mario
Fernández García, Marcos
author Muñoz Batista, Mario
author_facet Muñoz Batista, Mario
Ballari, Maria de Los Milagros
Kubacka, Anna
Cassano, Alberto Enrique
Alfano, Orlando Mario
Fernández García, Marcos
author_role author
author2 Ballari, Maria de Los Milagros
Kubacka, Anna
Cassano, Alberto Enrique
Alfano, Orlando Mario
Fernández García, Marcos
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Photocatalysis
Efficiency
Radiation Absorption
Ceria
topic Photocatalysis
Efficiency
Radiation Absorption
Ceria
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The photocatalytic activity under UV and visible irradiation of a series of CeO2-TiO2 composite materials prepared by microemulsion and subsequently calcined at 500 0C was evaluated using acetaldehyde as a model pollutant. The activities of three composite catalysts containing 2.5, 5 and 25 molar % of ceria, as well as a nano-titania reference are compared by means of efficiency parameters; the quantum (or true) efficiency, as well as the photonic (or apparent) efficiency were evaluated. To this end, the lamp emission properties, as well as the radiation field interaction with the catalyst inside the reactor were modelled and numerically calculated. For the evaluation of the radiation absorbed by the catalysts, the optical properties of the materials were measured and a radiative transfer model that considers all potential optical events was built up. The stability of the systems under reaction conditions was also studied. Overall, the results evidence that the composite containing 2.5 Ce mol. % outperforms titania by a factor of at least 2, irrespective of the illumination source used in the experiment. This shows the potential of the CeO2-TiO2 composites, a highly active and stable system, for sunlight optimum profiting.
Fil: Muñoz Batista, Mario. Consejo Superior de Investigaciones Cientificas. Instituto de Catálisis y Petroleoquímica; 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: Kubacka, Anna. Consejo Superior de Investigaciones Cientificas. Instituto de Catálisis y Petroleoquímica; España
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: Fernández García, Marcos. Consejo Superior de Investigaciones Cientificas. Instituto de Catálisis y Petroleoquímica; España
description The photocatalytic activity under UV and visible irradiation of a series of CeO2-TiO2 composite materials prepared by microemulsion and subsequently calcined at 500 0C was evaluated using acetaldehyde as a model pollutant. The activities of three composite catalysts containing 2.5, 5 and 25 molar % of ceria, as well as a nano-titania reference are compared by means of efficiency parameters; the quantum (or true) efficiency, as well as the photonic (or apparent) efficiency were evaluated. To this end, the lamp emission properties, as well as the radiation field interaction with the catalyst inside the reactor were modelled and numerically calculated. For the evaluation of the radiation absorbed by the catalysts, the optical properties of the materials were measured and a radiative transfer model that considers all potential optical events was built up. The stability of the systems under reaction conditions was also studied. Overall, the results evidence that the composite containing 2.5 Ce mol. % outperforms titania by a factor of at least 2, irrespective of the illumination source used in the experiment. This shows the potential of the CeO2-TiO2 composites, a highly active and stable system, for sunlight optimum profiting.
publishDate 2014
dc.date.none.fl_str_mv 2014-06
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/11336/9195
Muñoz Batista, Mario; Ballari, Maria de Los Milagros; Kubacka, Anna; Cassano, Alberto Enrique; Alfano, Orlando Mario; et al.; Acetaldehyde degradation under UV and Visible irradiation using CeO2-TiO2 composite systems: Evaluation of the photocatalytic efficiencies; Elsevier; Chemical Engineering Journal; 255; 6-2014; 297-306
1385-8947
url http://hdl.handle.net/11336/9195
identifier_str_mv Muñoz Batista, Mario; Ballari, Maria de Los Milagros; Kubacka, Anna; Cassano, Alberto Enrique; Alfano, Orlando Mario; et al.; Acetaldehyde degradation under UV and Visible irradiation using CeO2-TiO2 composite systems: Evaluation of the photocatalytic efficiencies; Elsevier; Chemical Engineering Journal; 255; 6-2014; 297-306
1385-8947
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cej.2014.06.056
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1385894714007876
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 Elsevier
publisher.none.fl_str_mv Elsevier
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_ 1846083511286497280
score 13.22299

Publicaciones similares