Photocatalytic Degradation of Tetrachloroethylene in Gas Phase on TiO2 Films: A Kinetic Study

Autores
Imoberdorf, Gustavo Eduardo; Irazoqui, Horacio Antonio; Cassano, Alberto Enrique; Alfano, Orlando Mario
Año de publicación
2005
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this work, the degradation of tetrachloroethylene or perchloroethylene (PCE) in an air stream was studied for different values of PCE feed concentrations, relative humidity levels, and light intensities. The TiO2 photocatalyst was deposited as a thin film on a borosilicate glass plate by means of a sol-gel technique. The reactor was operated under kinetic control regime. An expression of the intrinsic reaction kinetics was developed. This expression is based on a model of the absorption of radiant energy on the surface of the catalyst, followed by a detailed reaction mechanism based on a reaction scheme that involves Clº as an active reaction intermediate. Experimental results from a differential photoreactor were used to validate the proposed kinetic model and to determine the kinetic parameters by nonlinear regression of experimental data. The obtained results show: (1) first-order kinetics with respect to the PCE concentration, (2) linear dependence with the photon absorption rate, and (3) site-competitive adsorption between PCE and water, resulting in a dependence of the kinetics on the relative humidity.
Fil: Imoberdorf, Gustavo Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Irazoqui, Horacio Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Cassano, Alberto Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Alfano, Orlando Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Materia
Photocatalysis
Kinetic Model
Tetrachloroethylene
Gas Phase
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:11336/23589
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/23589
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Photocatalytic Degradation of Tetrachloroethylene in Gas Phase on TiO2 Films: A Kinetic StudyImoberdorf, Gustavo EduardoIrazoqui, Horacio AntonioCassano, Alberto EnriqueAlfano, Orlando MarioPhotocatalysisKinetic ModelTetrachloroethyleneGas Phasehttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2In this work, the degradation of tetrachloroethylene or perchloroethylene (PCE) in an air stream was studied for different values of PCE feed concentrations, relative humidity levels, and light intensities. The TiO2 photocatalyst was deposited as a thin film on a borosilicate glass plate by means of a sol-gel technique. The reactor was operated under kinetic control regime. An expression of the intrinsic reaction kinetics was developed. This expression is based on a model of the absorption of radiant energy on the surface of the catalyst, followed by a detailed reaction mechanism based on a reaction scheme that involves Clº as an active reaction intermediate. Experimental results from a differential photoreactor were used to validate the proposed kinetic model and to determine the kinetic parameters by nonlinear regression of experimental data. The obtained results show: (1) first-order kinetics with respect to the PCE concentration, (2) linear dependence with the photon absorption rate, and (3) site-competitive adsorption between PCE and water, resulting in a dependence of the kinetics on the relative humidity.Fil: Imoberdorf, Gustavo Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; ArgentinaFil: Irazoqui, Horacio Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; ArgentinaFil: Cassano, Alberto Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; ArgentinaFil: Alfano, Orlando Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; ArgentinaAmerican Chemical Society2005-02info: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/11336/23589Imoberdorf, Gustavo Eduardo; Irazoqui, Horacio Antonio; Cassano, Alberto Enrique; Alfano, Orlando Mario; Photocatalytic Degradation of Tetrachloroethylene in Gas Phase on TiO2 Films: A Kinetic Study; American Chemical Society; Industrial & Engineering Chemical Research; 44; 16; 2-2005; 6075-60850888-5885CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1021/ie049185zinfo:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/abs/10.1021/ie049185zinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:19:17Zoai:ri.conicet.gov.ar:11336/23589instacron: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:34982025-10-22 11:19:18.22CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Photocatalytic Degradation of Tetrachloroethylene in Gas Phase on TiO2 Films: A Kinetic Study
title Photocatalytic Degradation of Tetrachloroethylene in Gas Phase on TiO2 Films: A Kinetic Study
spellingShingle Photocatalytic Degradation of Tetrachloroethylene in Gas Phase on TiO2 Films: A Kinetic Study
Imoberdorf, Gustavo Eduardo
Photocatalysis
Kinetic Model
Tetrachloroethylene
Gas Phase
title_short Photocatalytic Degradation of Tetrachloroethylene in Gas Phase on TiO2 Films: A Kinetic Study
title_full Photocatalytic Degradation of Tetrachloroethylene in Gas Phase on TiO2 Films: A Kinetic Study
title_fullStr Photocatalytic Degradation of Tetrachloroethylene in Gas Phase on TiO2 Films: A Kinetic Study
title_full_unstemmed Photocatalytic Degradation of Tetrachloroethylene in Gas Phase on TiO2 Films: A Kinetic Study
title_sort Photocatalytic Degradation of Tetrachloroethylene in Gas Phase on TiO2 Films: A Kinetic Study
dc.creator.none.fl_str_mv Imoberdorf, Gustavo Eduardo
Irazoqui, Horacio Antonio
Cassano, Alberto Enrique
Alfano, Orlando Mario
author Imoberdorf, Gustavo Eduardo
author_facet Imoberdorf, Gustavo Eduardo
Irazoqui, Horacio Antonio
Cassano, Alberto Enrique
Alfano, Orlando Mario
author_role author
author2 Irazoqui, Horacio Antonio
Cassano, Alberto Enrique
Alfano, Orlando Mario
author2_role author
author
author
dc.subject.none.fl_str_mv Photocatalysis
Kinetic Model
Tetrachloroethylene
Gas Phase
topic Photocatalysis
Kinetic Model
Tetrachloroethylene
Gas Phase
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv In this work, the degradation of tetrachloroethylene or perchloroethylene (PCE) in an air stream was studied for different values of PCE feed concentrations, relative humidity levels, and light intensities. The TiO2 photocatalyst was deposited as a thin film on a borosilicate glass plate by means of a sol-gel technique. The reactor was operated under kinetic control regime. An expression of the intrinsic reaction kinetics was developed. This expression is based on a model of the absorption of radiant energy on the surface of the catalyst, followed by a detailed reaction mechanism based on a reaction scheme that involves Clº as an active reaction intermediate. Experimental results from a differential photoreactor were used to validate the proposed kinetic model and to determine the kinetic parameters by nonlinear regression of experimental data. The obtained results show: (1) first-order kinetics with respect to the PCE concentration, (2) linear dependence with the photon absorption rate, and (3) site-competitive adsorption between PCE and water, resulting in a dependence of the kinetics on the relative humidity.
Fil: Imoberdorf, Gustavo Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Irazoqui, Horacio Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Cassano, Alberto Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Alfano, Orlando Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
description In this work, the degradation of tetrachloroethylene or perchloroethylene (PCE) in an air stream was studied for different values of PCE feed concentrations, relative humidity levels, and light intensities. The TiO2 photocatalyst was deposited as a thin film on a borosilicate glass plate by means of a sol-gel technique. The reactor was operated under kinetic control regime. An expression of the intrinsic reaction kinetics was developed. This expression is based on a model of the absorption of radiant energy on the surface of the catalyst, followed by a detailed reaction mechanism based on a reaction scheme that involves Clº as an active reaction intermediate. Experimental results from a differential photoreactor were used to validate the proposed kinetic model and to determine the kinetic parameters by nonlinear regression of experimental data. The obtained results show: (1) first-order kinetics with respect to the PCE concentration, (2) linear dependence with the photon absorption rate, and (3) site-competitive adsorption between PCE and water, resulting in a dependence of the kinetics on the relative humidity.
publishDate 2005
dc.date.none.fl_str_mv 2005-02
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/11336/23589
Imoberdorf, Gustavo Eduardo; Irazoqui, Horacio Antonio; Cassano, Alberto Enrique; Alfano, Orlando Mario; Photocatalytic Degradation of Tetrachloroethylene in Gas Phase on TiO2 Films: A Kinetic Study; American Chemical Society; Industrial & Engineering Chemical Research; 44; 16; 2-2005; 6075-6085
0888-5885
CONICET Digital
CONICET
url http://hdl.handle.net/11336/23589
identifier_str_mv Imoberdorf, Gustavo Eduardo; Irazoqui, Horacio Antonio; Cassano, Alberto Enrique; Alfano, Orlando Mario; Photocatalytic Degradation of Tetrachloroethylene in Gas Phase on TiO2 Films: A Kinetic Study; American Chemical Society; Industrial & Engineering Chemical Research; 44; 16; 2-2005; 6075-6085
0888-5885
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1021/ie049185z
info:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/abs/10.1021/ie049185z
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 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
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score 12.982451

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