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
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/11625
Acceder
id CONICETDig_099e5052c777a210eeaf5152be102588
oai_identifier_str oai:ri.conicet.gov.ar:11336/11625
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling 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
_version_ 1846082841256919040
score 13.22299

Publicaciones similares