Characterization of Organo-Modified Bentonite Sorbents: The Effect of Modification Conditions on Adsorption Performance
- Autores
- Parolo, María Eugenia; Pettinari, Gisela R.; Musso, Telma Belén; Sanchez Izquierdo, María P.; Fernandez, Laura G.
- Año de publicación
- 2014
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The organic modification of a natural bentonite was evaluated using two methods: exchanging the interlayer cations by hexadecyltrimethylammonium (HDTMA) and grafting with vinyltrimethoxysilane (VTMS) and -methacryloyloxy propyl trimethoxysilane (TMSPMA) on montmorillonite surface. The physicochemical characterization of all materials was made by X-ray diffraction (XRD), IR spectroscopy, thermogravimetric analysis (TGA) and Brunauer–Emmett–Teller (BET) surface area techniques. HDTMA cations and organosilanes were intercalated into the interlayer space of montmorillonite, as deduced from the increase of the basal spacing. IR spectroscopy, TGA and BET area give evidence of successful organic modification. The studies show a decrease in the IR absorption band intensity at 3465 cm−1 with surfactant modification, and also a decrease of mass loss due to adsorbed water observed in two samples: the organoclay and functionalized bentonites, which are evidences of a lower interlayer hydrophilicity. The efficiency of aniline removal onto natural bentonite, organobentonite and functionalized bentonites from aqueous solutions was evaluated. Aniline sorption on natural bentonite was studied using batch experiments, XRD and IR spectroscopy. The hydrophobic surface of organobentonite and functionalized bentonites increased the retention capacity for nonionic organic substances such as aniline on bentonites. The sorption properties of modified bentonite, through different modification methods, enhanced the potential industrial applications of bentonites in water decontamination.
Fil: Parolo, María Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación y Desarrollo En Ingeniería de Procesos, Biotecnología y Energías Alternativas; Argentina. Universidad Nacional del Comahue. Facultad de Ingeniería; Argentina
Fil: Pettinari, Gisela R.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación y Desarrollo En Ingeniería de Procesos, Biotecnología y Energías Alternativas; Argentina. Universidad Nacional del Comahue. Facultad de Ingeniería; Argentina
Fil: Musso, Telma Belén. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación y Desarrollo En Ingeniería de Procesos, Biotecnología y Energías Alternativas; Argentina. Universidad Nacional del Comahue. Facultad de Ingeniería; Argentina
Fil: Sanchez Izquierdo, María P.. Universidad Nacional del Comahue. Facultad de Ingenieria. Departamento de Quimica; Argentina
Fil: Fernandez, Laura G.. Universidad Nacional del Comahue. Facultad de Ingenieria. Departamento de Quimica; Argentina - Materia
-
Bentonite
Organoclay
Silane-Grafted Bentonite
Sorption
Surface Characterization - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/11625
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Characterization of Organo-Modified Bentonite Sorbents: The Effect of Modification Conditions on Adsorption PerformanceParolo, María EugeniaPettinari, Gisela R.Musso, Telma BelénSanchez Izquierdo, María P.Fernandez, Laura G.BentoniteOrganoclaySilane-Grafted BentoniteSorptionSurface Characterizationhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The organic modification of a natural bentonite was evaluated using two methods: exchanging the interlayer cations by hexadecyltrimethylammonium (HDTMA) and grafting with vinyltrimethoxysilane (VTMS) and -methacryloyloxy propyl trimethoxysilane (TMSPMA) on montmorillonite surface. The physicochemical characterization of all materials was made by X-ray diffraction (XRD), IR spectroscopy, thermogravimetric analysis (TGA) and Brunauer–Emmett–Teller (BET) surface area techniques. HDTMA cations and organosilanes were intercalated into the interlayer space of montmorillonite, as deduced from the increase of the basal spacing. IR spectroscopy, TGA and BET area give evidence of successful organic modification. The studies show a decrease in the IR absorption band intensity at 3465 cm−1 with surfactant modification, and also a decrease of mass loss due to adsorbed water observed in two samples: the organoclay and functionalized bentonites, which are evidences of a lower interlayer hydrophilicity. The efficiency of aniline removal onto natural bentonite, organobentonite and functionalized bentonites from aqueous solutions was evaluated. Aniline sorption on natural bentonite was studied using batch experiments, XRD and IR spectroscopy. The hydrophobic surface of organobentonite and functionalized bentonites increased the retention capacity for nonionic organic substances such as aniline on bentonites. The sorption properties of modified bentonite, through different modification methods, enhanced the potential industrial applications of bentonites in water decontamination.Fil: Parolo, María Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación y Desarrollo En Ingeniería de Procesos, Biotecnología y Energías Alternativas; Argentina. Universidad Nacional del Comahue. Facultad de Ingeniería; ArgentinaFil: Pettinari, Gisela R.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación y Desarrollo En Ingeniería de Procesos, Biotecnología y Energías Alternativas; Argentina. Universidad Nacional del Comahue. Facultad de Ingeniería; ArgentinaFil: Musso, Telma Belén. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación y Desarrollo En Ingeniería de Procesos, Biotecnología y Energías Alternativas; Argentina. Universidad Nacional del Comahue. Facultad de Ingeniería; ArgentinaFil: Sanchez Izquierdo, María P.. Universidad Nacional del Comahue. Facultad de Ingenieria. Departamento de Quimica; ArgentinaFil: Fernandez, Laura G.. Universidad Nacional del Comahue. Facultad de Ingenieria. Departamento de Quimica; ArgentinaElsevier Science2014-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/11625Parolo, María Eugenia; Pettinari, Gisela R.; Musso, Telma Belén; Sanchez Izquierdo, María P.; Fernandez, Laura G.; Characterization of Organo-Modified Bentonite Sorbents: The Effect of Modification Conditions on Adsorption Performance; Elsevier Science; Applied Surface Science; 320; 9-2014; 356-3630169-4332enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0169433214020960info:eu-repo/semantics/altIdentifier/doi/10.1016/j.apsusc.2014.09.105info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:37:05Zoai:ri.conicet.gov.ar:11336/11625instacron: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 14:37:06.238CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Characterization of Organo-Modified Bentonite Sorbents: The Effect of Modification Conditions on Adsorption Performance |
title |
Characterization of Organo-Modified Bentonite Sorbents: The Effect of Modification Conditions on Adsorption Performance |
spellingShingle |
Characterization of Organo-Modified Bentonite Sorbents: The Effect of Modification Conditions on Adsorption Performance Parolo, María Eugenia Bentonite Organoclay Silane-Grafted Bentonite Sorption Surface Characterization |
title_short |
Characterization of Organo-Modified Bentonite Sorbents: The Effect of Modification Conditions on Adsorption Performance |
title_full |
Characterization of Organo-Modified Bentonite Sorbents: The Effect of Modification Conditions on Adsorption Performance |
title_fullStr |
Characterization of Organo-Modified Bentonite Sorbents: The Effect of Modification Conditions on Adsorption Performance |
title_full_unstemmed |
Characterization of Organo-Modified Bentonite Sorbents: The Effect of Modification Conditions on Adsorption Performance |
title_sort |
Characterization of Organo-Modified Bentonite Sorbents: The Effect of Modification Conditions on Adsorption Performance |
dc.creator.none.fl_str_mv |
Parolo, María Eugenia Pettinari, Gisela R. Musso, Telma Belén Sanchez Izquierdo, María P. Fernandez, Laura G. |
author |
Parolo, María Eugenia |
author_facet |
Parolo, María Eugenia Pettinari, Gisela R. Musso, Telma Belén Sanchez Izquierdo, María P. Fernandez, Laura G. |
author_role |
author |
author2 |
Pettinari, Gisela R. Musso, Telma Belén Sanchez Izquierdo, María P. Fernandez, Laura G. |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
Bentonite Organoclay Silane-Grafted Bentonite Sorption Surface Characterization |
topic |
Bentonite Organoclay Silane-Grafted Bentonite Sorption Surface Characterization |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
The organic modification of a natural bentonite was evaluated using two methods: exchanging the interlayer cations by hexadecyltrimethylammonium (HDTMA) and grafting with vinyltrimethoxysilane (VTMS) and -methacryloyloxy propyl trimethoxysilane (TMSPMA) on montmorillonite surface. The physicochemical characterization of all materials was made by X-ray diffraction (XRD), IR spectroscopy, thermogravimetric analysis (TGA) and Brunauer–Emmett–Teller (BET) surface area techniques. HDTMA cations and organosilanes were intercalated into the interlayer space of montmorillonite, as deduced from the increase of the basal spacing. IR spectroscopy, TGA and BET area give evidence of successful organic modification. The studies show a decrease in the IR absorption band intensity at 3465 cm−1 with surfactant modification, and also a decrease of mass loss due to adsorbed water observed in two samples: the organoclay and functionalized bentonites, which are evidences of a lower interlayer hydrophilicity. The efficiency of aniline removal onto natural bentonite, organobentonite and functionalized bentonites from aqueous solutions was evaluated. Aniline sorption on natural bentonite was studied using batch experiments, XRD and IR spectroscopy. The hydrophobic surface of organobentonite and functionalized bentonites increased the retention capacity for nonionic organic substances such as aniline on bentonites. The sorption properties of modified bentonite, through different modification methods, enhanced the potential industrial applications of bentonites in water decontamination. Fil: Parolo, María Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación y Desarrollo En Ingeniería de Procesos, Biotecnología y Energías Alternativas; Argentina. Universidad Nacional del Comahue. Facultad de Ingeniería; Argentina Fil: Pettinari, Gisela R.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación y Desarrollo En Ingeniería de Procesos, Biotecnología y Energías Alternativas; Argentina. Universidad Nacional del Comahue. Facultad de Ingeniería; Argentina Fil: Musso, Telma Belén. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación y Desarrollo En Ingeniería de Procesos, Biotecnología y Energías Alternativas; Argentina. Universidad Nacional del Comahue. Facultad de Ingeniería; Argentina Fil: Sanchez Izquierdo, María P.. Universidad Nacional del Comahue. Facultad de Ingenieria. Departamento de Quimica; Argentina Fil: Fernandez, Laura G.. Universidad Nacional del Comahue. Facultad de Ingenieria. Departamento de Quimica; Argentina |
description |
The organic modification of a natural bentonite was evaluated using two methods: exchanging the interlayer cations by hexadecyltrimethylammonium (HDTMA) and grafting with vinyltrimethoxysilane (VTMS) and -methacryloyloxy propyl trimethoxysilane (TMSPMA) on montmorillonite surface. The physicochemical characterization of all materials was made by X-ray diffraction (XRD), IR spectroscopy, thermogravimetric analysis (TGA) and Brunauer–Emmett–Teller (BET) surface area techniques. HDTMA cations and organosilanes were intercalated into the interlayer space of montmorillonite, as deduced from the increase of the basal spacing. IR spectroscopy, TGA and BET area give evidence of successful organic modification. The studies show a decrease in the IR absorption band intensity at 3465 cm−1 with surfactant modification, and also a decrease of mass loss due to adsorbed water observed in two samples: the organoclay and functionalized bentonites, which are evidences of a lower interlayer hydrophilicity. The efficiency of aniline removal onto natural bentonite, organobentonite and functionalized bentonites from aqueous solutions was evaluated. Aniline sorption on natural bentonite was studied using batch experiments, XRD and IR spectroscopy. The hydrophobic surface of organobentonite and functionalized bentonites increased the retention capacity for nonionic organic substances such as aniline on bentonites. The sorption properties of modified bentonite, through different modification methods, enhanced the potential industrial applications of bentonites in water decontamination. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-09 |
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/11336/11625 Parolo, María Eugenia; Pettinari, Gisela R.; Musso, Telma Belén; Sanchez Izquierdo, María P.; Fernandez, Laura G.; Characterization of Organo-Modified Bentonite Sorbents: The Effect of Modification Conditions on Adsorption Performance; Elsevier Science; Applied Surface Science; 320; 9-2014; 356-363 0169-4332 |
url |
http://hdl.handle.net/11336/11625 |
identifier_str_mv |
Parolo, María Eugenia; Pettinari, Gisela R.; Musso, Telma Belén; Sanchez Izquierdo, María P.; Fernandez, Laura G.; Characterization of Organo-Modified Bentonite Sorbents: The Effect of Modification Conditions on Adsorption Performance; Elsevier Science; Applied Surface Science; 320; 9-2014; 356-363 0169-4332 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0169433214020960 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.apsusc.2014.09.105 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier Science |
publisher.none.fl_str_mv |
Elsevier Science |
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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1846082841256919040 |
score |
13.22299 |