Photocatalytic EDTA degradation on suspended and immobilized TiO2

Autores
Mansilla, H. D.; Bravo, C.; Ferreyra, R.; Litter, Marta Irene; Jardim, W. F.; Lizama, C.; Freer, J.; Fernández, J.
Año de publicación
2006
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The photocatalytic degradation of EDTA solutions (5 mM) has been studied under different conditions in the presence of TiO2 in suspensionor immobilized on glass rings and in the absence and presence of Fe(III). Using the response surface methodology, the initial pH, amount ofphotocatalyst, and the Fe/EDTA molar ratio were optimized in order to obtain better degradation. Under optimized conditions, 90% EDTAdegradation (at a 0.28 Fe/EDTA molar ratio) was reached after 60 min illumination at pH 3.0 and using 0.73 g L−1 TiO2. Increase of the acutetoxicity (Microtox) was observed in the course of the reaction, and degradation intermediates were identified by GC/MS analysis.
Fil: Mansilla, H. D.. Universidad de Concepción; Chile
Fil: Bravo, C.. Universidad de Concepción; Chile
Fil: Ferreyra, R.. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina
Fil: Litter, Marta Irene. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina
Fil: Jardim, W. F.. Universidade Estadual de Campinas; Brasil
Fil: Lizama, C.. Universidad de Concepción; Chile
Fil: Freer, J.. Universidad de Concepción; Chile
Fil: Fernández, J.. Universidad de Concepción; Chile
Materia
EDTA
PHOTOCATALYSIS
TIO2
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:11336/244260
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Photocatalytic EDTA degradation on suspended and immobilized TiO2Mansilla, H. D.Bravo, C.Ferreyra, R.Litter, Marta IreneJardim, W. F.Lizama, C.Freer, J.Fernández, J.EDTAPHOTOCATALYSISTIO2TITANIUM DIOXIDEhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The photocatalytic degradation of EDTA solutions (5 mM) has been studied under different conditions in the presence of TiO2 in suspensionor immobilized on glass rings and in the absence and presence of Fe(III). Using the response surface methodology, the initial pH, amount ofphotocatalyst, and the Fe/EDTA molar ratio were optimized in order to obtain better degradation. Under optimized conditions, 90% EDTAdegradation (at a 0.28 Fe/EDTA molar ratio) was reached after 60 min illumination at pH 3.0 and using 0.73 g L−1 TiO2. Increase of the acutetoxicity (Microtox) was observed in the course of the reaction, and degradation intermediates were identified by GC/MS analysis.Fil: Mansilla, H. D.. Universidad de Concepción; ChileFil: Bravo, C.. Universidad de Concepción; ChileFil: Ferreyra, R.. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; ArgentinaFil: Litter, Marta Irene. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; ArgentinaFil: Jardim, W. F.. Universidade Estadual de Campinas; BrasilFil: Lizama, C.. Universidad de Concepción; ChileFil: Freer, J.. Universidad de Concepción; ChileFil: Fernández, J.. Universidad de Concepción; ChileElsevier Science SA2006-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/244260Mansilla, H. D.; Bravo, C.; Ferreyra, R.; Litter, Marta Irene; Jardim, W. F.; et al.; Photocatalytic EDTA degradation on suspended and immobilized TiO2; Elsevier Science SA; Journal of Photochemistry and Photobiology A: Chemistry; 181; 2-3; 7-2006; 188-1941010-6030CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S101060300500599Xinfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.jphotochem.2005.11.023info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:49:45Zoai:ri.conicet.gov.ar:11336/244260instacron: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 09:49:45.327CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Photocatalytic EDTA degradation on suspended and immobilized TiO2
title Photocatalytic EDTA degradation on suspended and immobilized TiO2
spellingShingle Photocatalytic EDTA degradation on suspended and immobilized TiO2
Mansilla, H. D.
EDTA
PHOTOCATALYSIS
TIO2
TITANIUM DIOXIDE
title_short Photocatalytic EDTA degradation on suspended and immobilized TiO2
title_full Photocatalytic EDTA degradation on suspended and immobilized TiO2
title_fullStr Photocatalytic EDTA degradation on suspended and immobilized TiO2
title_full_unstemmed Photocatalytic EDTA degradation on suspended and immobilized TiO2
title_sort Photocatalytic EDTA degradation on suspended and immobilized TiO2
dc.creator.none.fl_str_mv Mansilla, H. D.
Bravo, C.
Ferreyra, R.
Litter, Marta Irene
Jardim, W. F.
Lizama, C.
Freer, J.
Fernández, J.
author Mansilla, H. D.
author_facet Mansilla, H. D.
Bravo, C.
Ferreyra, R.
Litter, Marta Irene
Jardim, W. F.
Lizama, C.
Freer, J.
Fernández, J.
author_role author
author2 Bravo, C.
Ferreyra, R.
Litter, Marta Irene
Jardim, W. F.
Lizama, C.
Freer, J.
Fernández, J.
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv EDTA
PHOTOCATALYSIS
TIO2
TITANIUM DIOXIDE
topic EDTA
PHOTOCATALYSIS
TIO2
TITANIUM DIOXIDE
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The photocatalytic degradation of EDTA solutions (5 mM) has been studied under different conditions in the presence of TiO2 in suspensionor immobilized on glass rings and in the absence and presence of Fe(III). Using the response surface methodology, the initial pH, amount ofphotocatalyst, and the Fe/EDTA molar ratio were optimized in order to obtain better degradation. Under optimized conditions, 90% EDTAdegradation (at a 0.28 Fe/EDTA molar ratio) was reached after 60 min illumination at pH 3.0 and using 0.73 g L−1 TiO2. Increase of the acutetoxicity (Microtox) was observed in the course of the reaction, and degradation intermediates were identified by GC/MS analysis.
Fil: Mansilla, H. D.. Universidad de Concepción; Chile
Fil: Bravo, C.. Universidad de Concepción; Chile
Fil: Ferreyra, R.. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina
Fil: Litter, Marta Irene. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina
Fil: Jardim, W. F.. Universidade Estadual de Campinas; Brasil
Fil: Lizama, C.. Universidad de Concepción; Chile
Fil: Freer, J.. Universidad de Concepción; Chile
Fil: Fernández, J.. Universidad de Concepción; Chile
description The photocatalytic degradation of EDTA solutions (5 mM) has been studied under different conditions in the presence of TiO2 in suspensionor immobilized on glass rings and in the absence and presence of Fe(III). Using the response surface methodology, the initial pH, amount ofphotocatalyst, and the Fe/EDTA molar ratio were optimized in order to obtain better degradation. Under optimized conditions, 90% EDTAdegradation (at a 0.28 Fe/EDTA molar ratio) was reached after 60 min illumination at pH 3.0 and using 0.73 g L−1 TiO2. Increase of the acutetoxicity (Microtox) was observed in the course of the reaction, and degradation intermediates were identified by GC/MS analysis.
publishDate 2006
dc.date.none.fl_str_mv 2006-07
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/11336/244260
Mansilla, H. D.; Bravo, C.; Ferreyra, R.; Litter, Marta Irene; Jardim, W. F.; et al.; Photocatalytic EDTA degradation on suspended and immobilized TiO2; Elsevier Science SA; Journal of Photochemistry and Photobiology A: Chemistry; 181; 2-3; 7-2006; 188-194
1010-6030
CONICET Digital
CONICET
url http://hdl.handle.net/11336/244260
identifier_str_mv Mansilla, H. D.; Bravo, C.; Ferreyra, R.; Litter, Marta Irene; Jardim, W. F.; et al.; Photocatalytic EDTA degradation on suspended and immobilized TiO2; Elsevier Science SA; Journal of Photochemistry and Photobiology A: Chemistry; 181; 2-3; 7-2006; 188-194
1010-6030
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://www.sciencedirect.com/science/article/pii/S101060300500599X
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jphotochem.2005.11.023
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 Elsevier Science SA
publisher.none.fl_str_mv Elsevier Science SA
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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