Kinetic sorption of Cr(VI) into solvent impregnated porous microspheres

Autores
Illanes, Cristian Omar; Ochoa, Nelio Ariel; Marchese, Jose
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The sorption rates of Cr(VI) ion from acid chromate solutions with Aliquat 336 impregnated microspheres (MS) were examined. MS of polysulfone (PSf) and poly(styrene-acrylenitrile) (SAN) were prepared by phase inversion process. The MS obtained have different size and morphology. The sorption behavior and the rate-controlling sorption step have been discussed from the Elovich equation, pseudo-second order and Crank kinetic models. Even all models gave satisfactory correlations with the experimental data, the Crank model showed to be more realistic and appropriate to interpret the Cr(VI) kinetic sorption results. These analysis indicate that the intraparticle solute diffusion is the rate-controlling sorption step, and suggest that there is a surface diffusion contribution to the overall Cr(VI) mass transport inside the MS which is more important as the MS pore size decreases.
Fil: Illanes, Cristian Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich". Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich"; Argentina
Fil: Ochoa, Nelio Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich". Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich"; Argentina
Fil: Marchese, Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich". Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich"; Argentina
Materia
CR(VI) SORPTION
KINETICS
MICROSPHERES
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:11336/137125
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Kinetic sorption of Cr(VI) into solvent impregnated porous microspheresIllanes, Cristian OmarOchoa, Nelio ArielMarchese, JoseCR(VI) SORPTIONKINETICSMICROSPHEREShttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2The sorption rates of Cr(VI) ion from acid chromate solutions with Aliquat 336 impregnated microspheres (MS) were examined. MS of polysulfone (PSf) and poly(styrene-acrylenitrile) (SAN) were prepared by phase inversion process. The MS obtained have different size and morphology. The sorption behavior and the rate-controlling sorption step have been discussed from the Elovich equation, pseudo-second order and Crank kinetic models. Even all models gave satisfactory correlations with the experimental data, the Crank model showed to be more realistic and appropriate to interpret the Cr(VI) kinetic sorption results. These analysis indicate that the intraparticle solute diffusion is the rate-controlling sorption step, and suggest that there is a surface diffusion contribution to the overall Cr(VI) mass transport inside the MS which is more important as the MS pore size decreases.Fil: Illanes, Cristian Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich". Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich"; ArgentinaFil: Ochoa, Nelio Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich". Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich"; ArgentinaFil: Marchese, Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich". Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich"; ArgentinaElsevier Science SA2008-03-01info: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/11336/137125Illanes, Cristian Omar; Ochoa, Nelio Ariel; Marchese, Jose; Kinetic sorption of Cr(VI) into solvent impregnated porous microspheres; Elsevier Science SA; Chemical Engineering Journal; 136; 2-3; 1-3-2008; 92-981385-8947CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S1385894707001398info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cej.2007.03.008info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:04:28Zoai:ri.conicet.gov.ar:11336/137125instacron: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 10:04:28.483CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Kinetic sorption of Cr(VI) into solvent impregnated porous microspheres
title Kinetic sorption of Cr(VI) into solvent impregnated porous microspheres
spellingShingle Kinetic sorption of Cr(VI) into solvent impregnated porous microspheres
Illanes, Cristian Omar
CR(VI) SORPTION
KINETICS
MICROSPHERES
title_short Kinetic sorption of Cr(VI) into solvent impregnated porous microspheres
title_full Kinetic sorption of Cr(VI) into solvent impregnated porous microspheres
title_fullStr Kinetic sorption of Cr(VI) into solvent impregnated porous microspheres
title_full_unstemmed Kinetic sorption of Cr(VI) into solvent impregnated porous microspheres
title_sort Kinetic sorption of Cr(VI) into solvent impregnated porous microspheres
dc.creator.none.fl_str_mv Illanes, Cristian Omar
Ochoa, Nelio Ariel
Marchese, Jose
author Illanes, Cristian Omar
author_facet Illanes, Cristian Omar
Ochoa, Nelio Ariel
Marchese, Jose
author_role author
author2 Ochoa, Nelio Ariel
Marchese, Jose
author2_role author
author
dc.subject.none.fl_str_mv CR(VI) SORPTION
KINETICS
MICROSPHERES
topic CR(VI) SORPTION
KINETICS
MICROSPHERES
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 sorption rates of Cr(VI) ion from acid chromate solutions with Aliquat 336 impregnated microspheres (MS) were examined. MS of polysulfone (PSf) and poly(styrene-acrylenitrile) (SAN) were prepared by phase inversion process. The MS obtained have different size and morphology. The sorption behavior and the rate-controlling sorption step have been discussed from the Elovich equation, pseudo-second order and Crank kinetic models. Even all models gave satisfactory correlations with the experimental data, the Crank model showed to be more realistic and appropriate to interpret the Cr(VI) kinetic sorption results. These analysis indicate that the intraparticle solute diffusion is the rate-controlling sorption step, and suggest that there is a surface diffusion contribution to the overall Cr(VI) mass transport inside the MS which is more important as the MS pore size decreases.
Fil: Illanes, Cristian Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich". Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich"; Argentina
Fil: Ochoa, Nelio Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich". Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich"; Argentina
Fil: Marchese, Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich". Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich"; Argentina
description The sorption rates of Cr(VI) ion from acid chromate solutions with Aliquat 336 impregnated microspheres (MS) were examined. MS of polysulfone (PSf) and poly(styrene-acrylenitrile) (SAN) were prepared by phase inversion process. The MS obtained have different size and morphology. The sorption behavior and the rate-controlling sorption step have been discussed from the Elovich equation, pseudo-second order and Crank kinetic models. Even all models gave satisfactory correlations with the experimental data, the Crank model showed to be more realistic and appropriate to interpret the Cr(VI) kinetic sorption results. These analysis indicate that the intraparticle solute diffusion is the rate-controlling sorption step, and suggest that there is a surface diffusion contribution to the overall Cr(VI) mass transport inside the MS which is more important as the MS pore size decreases.
publishDate 2008
dc.date.none.fl_str_mv 2008-03-01
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/11336/137125
Illanes, Cristian Omar; Ochoa, Nelio Ariel; Marchese, Jose; Kinetic sorption of Cr(VI) into solvent impregnated porous microspheres; Elsevier Science SA; Chemical Engineering Journal; 136; 2-3; 1-3-2008; 92-98
1385-8947
CONICET Digital
CONICET
url http://hdl.handle.net/11336/137125
identifier_str_mv Illanes, Cristian Omar; Ochoa, Nelio Ariel; Marchese, Jose; Kinetic sorption of Cr(VI) into solvent impregnated porous microspheres; Elsevier Science SA; Chemical Engineering Journal; 136; 2-3; 1-3-2008; 92-98
1385-8947
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/abs/pii/S1385894707001398
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cej.2007.03.008
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 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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