Experimental Method to Evaluate the Optical Properties of Aqueous Titanium Dioxide Suspensions

Autores
Satuf, María Lucila; Brandi, Rodolfo Juan; Cassano, Alberto Enrique; Alfano, Orlando Mario
Año de publicación
2005
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The evaluation of the radiation field inside a slurry reactor constitutes a central step in the study of photocatalytic reactions. This task can be achieved by solving the radiative transfer equation (RTE) for the system under study. To solve the RTE, three optical properties of the catalyst suspensions are needed: the absorption coefficient, the scattering coefficient, and the phase function for scattering. In the present work, a novel experimental method to measure the optical properties of aqueous titanium dioxide (TiO2) suspensions is proposed. The method involved diffuse reflectance and transmittance spectrophotometric measurements of the catalyst suspensions, the evaluation of the radiation field in the sample cell, and the application of a non linear optimization program to adjust model predictions to experimental data. Three commercial brands of TiO2 were investigated: Aldrich, Degussa P25 and Hombikat UV 100.
Fil: Satuf, María Lucila. 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: Brandi, Rodolfo Juan. 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
Photocatalytic Reactor
Radiative Transfer Equation
Titanium Dioxide
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:11336/26635
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Experimental Method to Evaluate the Optical Properties of Aqueous Titanium Dioxide SuspensionsSatuf, María LucilaBrandi, Rodolfo JuanCassano, Alberto EnriqueAlfano, Orlando MarioPhotocatalytic ReactorRadiative Transfer EquationTitanium Dioxidehttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2The evaluation of the radiation field inside a slurry reactor constitutes a central step in the study of photocatalytic reactions. This task can be achieved by solving the radiative transfer equation (RTE) for the system under study. To solve the RTE, three optical properties of the catalyst suspensions are needed: the absorption coefficient, the scattering coefficient, and the phase function for scattering. In the present work, a novel experimental method to measure the optical properties of aqueous titanium dioxide (TiO2) suspensions is proposed. The method involved diffuse reflectance and transmittance spectrophotometric measurements of the catalyst suspensions, the evaluation of the radiation field in the sample cell, and the application of a non linear optimization program to adjust model predictions to experimental data. Three commercial brands of TiO2 were investigated: Aldrich, Degussa P25 and Hombikat UV 100.Fil: Satuf, María Lucila. 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: Brandi, Rodolfo Juan. 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 Society2005-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/26635Satuf, María Lucila; Brandi, Rodolfo Juan; Cassano, Alberto Enrique; Alfano, Orlando Mario; Experimental Method to Evaluate the Optical Properties of Aqueous Titanium Dioxide Suspensions; American Chemical Society; Industrial & Engineering Chemical Research; 44; 17; 12-2005; 6643-66490888-5885CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1021/ie050365yinfo:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/abs/10.1021/ie050365yinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:56:00Zoai:ri.conicet.gov.ar:11336/26635instacron: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 09:56:00.685CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Experimental Method to Evaluate the Optical Properties of Aqueous Titanium Dioxide Suspensions
title Experimental Method to Evaluate the Optical Properties of Aqueous Titanium Dioxide Suspensions
spellingShingle Experimental Method to Evaluate the Optical Properties of Aqueous Titanium Dioxide Suspensions
Satuf, María Lucila
Photocatalytic Reactor
Radiative Transfer Equation
Titanium Dioxide
title_short Experimental Method to Evaluate the Optical Properties of Aqueous Titanium Dioxide Suspensions
title_full Experimental Method to Evaluate the Optical Properties of Aqueous Titanium Dioxide Suspensions
title_fullStr Experimental Method to Evaluate the Optical Properties of Aqueous Titanium Dioxide Suspensions
title_full_unstemmed Experimental Method to Evaluate the Optical Properties of Aqueous Titanium Dioxide Suspensions
title_sort Experimental Method to Evaluate the Optical Properties of Aqueous Titanium Dioxide Suspensions
dc.creator.none.fl_str_mv Satuf, María Lucila
Brandi, Rodolfo Juan
Cassano, Alberto Enrique
Alfano, Orlando Mario
author Satuf, María Lucila
author_facet Satuf, María Lucila
Brandi, Rodolfo Juan
Cassano, Alberto Enrique
Alfano, Orlando Mario
author_role author
author2 Brandi, Rodolfo Juan
Cassano, Alberto Enrique
Alfano, Orlando Mario
author2_role author
author
author
dc.subject.none.fl_str_mv Photocatalytic Reactor
Radiative Transfer Equation
Titanium Dioxide
topic Photocatalytic Reactor
Radiative Transfer Equation
Titanium Dioxide
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 evaluation of the radiation field inside a slurry reactor constitutes a central step in the study of photocatalytic reactions. This task can be achieved by solving the radiative transfer equation (RTE) for the system under study. To solve the RTE, three optical properties of the catalyst suspensions are needed: the absorption coefficient, the scattering coefficient, and the phase function for scattering. In the present work, a novel experimental method to measure the optical properties of aqueous titanium dioxide (TiO2) suspensions is proposed. The method involved diffuse reflectance and transmittance spectrophotometric measurements of the catalyst suspensions, the evaluation of the radiation field in the sample cell, and the application of a non linear optimization program to adjust model predictions to experimental data. Three commercial brands of TiO2 were investigated: Aldrich, Degussa P25 and Hombikat UV 100.
Fil: Satuf, María Lucila. 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: Brandi, Rodolfo Juan. 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 The evaluation of the radiation field inside a slurry reactor constitutes a central step in the study of photocatalytic reactions. This task can be achieved by solving the radiative transfer equation (RTE) for the system under study. To solve the RTE, three optical properties of the catalyst suspensions are needed: the absorption coefficient, the scattering coefficient, and the phase function for scattering. In the present work, a novel experimental method to measure the optical properties of aqueous titanium dioxide (TiO2) suspensions is proposed. The method involved diffuse reflectance and transmittance spectrophotometric measurements of the catalyst suspensions, the evaluation of the radiation field in the sample cell, and the application of a non linear optimization program to adjust model predictions to experimental data. Three commercial brands of TiO2 were investigated: Aldrich, Degussa P25 and Hombikat UV 100.
publishDate 2005
dc.date.none.fl_str_mv 2005-12
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/11336/26635
Satuf, María Lucila; Brandi, Rodolfo Juan; Cassano, Alberto Enrique; Alfano, Orlando Mario; Experimental Method to Evaluate the Optical Properties of Aqueous Titanium Dioxide Suspensions; American Chemical Society; Industrial & Engineering Chemical Research; 44; 17; 12-2005; 6643-6649
0888-5885
CONICET Digital
CONICET
url http://hdl.handle.net/11336/26635
identifier_str_mv Satuf, María Lucila; Brandi, Rodolfo Juan; Cassano, Alberto Enrique; Alfano, Orlando Mario; Experimental Method to Evaluate the Optical Properties of Aqueous Titanium Dioxide Suspensions; American Chemical Society; Industrial & Engineering Chemical Research; 44; 17; 12-2005; 6643-6649
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/ie050365y
info:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/abs/10.1021/ie050365y
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
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 13.13397

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