Montmorillonite-alginate beads: Natural mineral and biopolymers based sorbent of paraquat herbicides

Autores
Etcheverry, Mariana; Cappa, Valeria Alejandra; Trelles, Jorge Abel; Zanini, Graciela Pilar
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Beads of alginate montmorillonite have been used for the first time as sorbent of the cationic pesticide paraquat (PQ). They are a green material because they are formed by a biopolymer and a clay mineral, and because they allow using an energy efficient process to separate the beads after PQ adsorption. The general characterization of the beads, with montmorillonite contents ranging from 0% to 70%, has been carried out by elemental composition, FTIR and thermal analysis. The shape, external morphology and internal structure of the beads were examined by SEM. Wet beads were also observed with a digital camera. PQ adsorption was studied with adsorption isotherms from aqueous solutions, and maximum adsorption capacities (Qmax) were 0.093, 0.146, 0.187 and 0.278 mmol g−1 for montmorillonite contents of 0, 5, 30 and 70%, respectively. Qmax varied linearly with the clay content. The results show that montmorillonite is practically the only PQ sorbent, with alginate acting mainly as support of the clay particles, but playing a very important role allowing an effortless handling of the material and the adsorbed pollutant.
Fil: Etcheverry, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
Fil: Cappa, Valeria Alejandra. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Investigación en Biotecnología Sustentable; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Trelles, Jorge Abel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Investigación en Biotecnología Sustentable; Argentina
Fil: Zanini, Graciela Pilar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
Materia
Adsorption
Alginate
Beads
Montmorillonite
Paraquat
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:11336/56510
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Montmorillonite-alginate beads: Natural mineral and biopolymers based sorbent of paraquat herbicidesEtcheverry, MarianaCappa, Valeria AlejandraTrelles, Jorge AbelZanini, Graciela PilarAdsorptionAlginateBeadsMontmorilloniteParaquathttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Beads of alginate montmorillonite have been used for the first time as sorbent of the cationic pesticide paraquat (PQ). They are a green material because they are formed by a biopolymer and a clay mineral, and because they allow using an energy efficient process to separate the beads after PQ adsorption. The general characterization of the beads, with montmorillonite contents ranging from 0% to 70%, has been carried out by elemental composition, FTIR and thermal analysis. The shape, external morphology and internal structure of the beads were examined by SEM. Wet beads were also observed with a digital camera. PQ adsorption was studied with adsorption isotherms from aqueous solutions, and maximum adsorption capacities (Qmax) were 0.093, 0.146, 0.187 and 0.278 mmol g−1 for montmorillonite contents of 0, 5, 30 and 70%, respectively. Qmax varied linearly with the clay content. The results show that montmorillonite is practically the only PQ sorbent, with alginate acting mainly as support of the clay particles, but playing a very important role allowing an effortless handling of the material and the adsorbed pollutant.Fil: Etcheverry, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; ArgentinaFil: Cappa, Valeria Alejandra. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Investigación en Biotecnología Sustentable; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Trelles, Jorge Abel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Investigación en Biotecnología Sustentable; ArgentinaFil: Zanini, Graciela Pilar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; ArgentinaElsevier Ltd2017-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/56510Etcheverry, Mariana; Cappa, Valeria Alejandra; Trelles, Jorge Abel; Zanini, Graciela Pilar; Montmorillonite-alginate beads: Natural mineral and biopolymers based sorbent of paraquat herbicides; Elsevier Ltd; Journal of Environmental Chemical Engineering; 5; 6; 12-2017; 5868-58752213-3437CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S2213343717305766info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jece.2017.11.018info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:48:46Zoai:ri.conicet.gov.ar:11336/56510instacron: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 09:48:47.006CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Montmorillonite-alginate beads: Natural mineral and biopolymers based sorbent of paraquat herbicides
title Montmorillonite-alginate beads: Natural mineral and biopolymers based sorbent of paraquat herbicides
spellingShingle Montmorillonite-alginate beads: Natural mineral and biopolymers based sorbent of paraquat herbicides
Etcheverry, Mariana
Adsorption
Alginate
Beads
Montmorillonite
Paraquat
title_short Montmorillonite-alginate beads: Natural mineral and biopolymers based sorbent of paraquat herbicides
title_full Montmorillonite-alginate beads: Natural mineral and biopolymers based sorbent of paraquat herbicides
title_fullStr Montmorillonite-alginate beads: Natural mineral and biopolymers based sorbent of paraquat herbicides
title_full_unstemmed Montmorillonite-alginate beads: Natural mineral and biopolymers based sorbent of paraquat herbicides
title_sort Montmorillonite-alginate beads: Natural mineral and biopolymers based sorbent of paraquat herbicides
dc.creator.none.fl_str_mv Etcheverry, Mariana
Cappa, Valeria Alejandra
Trelles, Jorge Abel
Zanini, Graciela Pilar
author Etcheverry, Mariana
author_facet Etcheverry, Mariana
Cappa, Valeria Alejandra
Trelles, Jorge Abel
Zanini, Graciela Pilar
author_role author
author2 Cappa, Valeria Alejandra
Trelles, Jorge Abel
Zanini, Graciela Pilar
author2_role author
author
author
dc.subject.none.fl_str_mv Adsorption
Alginate
Beads
Montmorillonite
Paraquat
topic Adsorption
Alginate
Beads
Montmorillonite
Paraquat
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Beads of alginate montmorillonite have been used for the first time as sorbent of the cationic pesticide paraquat (PQ). They are a green material because they are formed by a biopolymer and a clay mineral, and because they allow using an energy efficient process to separate the beads after PQ adsorption. The general characterization of the beads, with montmorillonite contents ranging from 0% to 70%, has been carried out by elemental composition, FTIR and thermal analysis. The shape, external morphology and internal structure of the beads were examined by SEM. Wet beads were also observed with a digital camera. PQ adsorption was studied with adsorption isotherms from aqueous solutions, and maximum adsorption capacities (Qmax) were 0.093, 0.146, 0.187 and 0.278 mmol g−1 for montmorillonite contents of 0, 5, 30 and 70%, respectively. Qmax varied linearly with the clay content. The results show that montmorillonite is practically the only PQ sorbent, with alginate acting mainly as support of the clay particles, but playing a very important role allowing an effortless handling of the material and the adsorbed pollutant.
Fil: Etcheverry, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
Fil: Cappa, Valeria Alejandra. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Investigación en Biotecnología Sustentable; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Trelles, Jorge Abel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Investigación en Biotecnología Sustentable; Argentina
Fil: Zanini, Graciela Pilar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
description Beads of alginate montmorillonite have been used for the first time as sorbent of the cationic pesticide paraquat (PQ). They are a green material because they are formed by a biopolymer and a clay mineral, and because they allow using an energy efficient process to separate the beads after PQ adsorption. The general characterization of the beads, with montmorillonite contents ranging from 0% to 70%, has been carried out by elemental composition, FTIR and thermal analysis. The shape, external morphology and internal structure of the beads were examined by SEM. Wet beads were also observed with a digital camera. PQ adsorption was studied with adsorption isotherms from aqueous solutions, and maximum adsorption capacities (Qmax) were 0.093, 0.146, 0.187 and 0.278 mmol g−1 for montmorillonite contents of 0, 5, 30 and 70%, respectively. Qmax varied linearly with the clay content. The results show that montmorillonite is practically the only PQ sorbent, with alginate acting mainly as support of the clay particles, but playing a very important role allowing an effortless handling of the material and the adsorbed pollutant.
publishDate 2017
dc.date.none.fl_str_mv 2017-12
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/11336/56510
Etcheverry, Mariana; Cappa, Valeria Alejandra; Trelles, Jorge Abel; Zanini, Graciela Pilar; Montmorillonite-alginate beads: Natural mineral and biopolymers based sorbent of paraquat herbicides; Elsevier Ltd; Journal of Environmental Chemical Engineering; 5; 6; 12-2017; 5868-5875
2213-3437
CONICET Digital
CONICET
url http://hdl.handle.net/11336/56510
identifier_str_mv Etcheverry, Mariana; Cappa, Valeria Alejandra; Trelles, Jorge Abel; Zanini, Graciela Pilar; Montmorillonite-alginate beads: Natural mineral and biopolymers based sorbent of paraquat herbicides; Elsevier Ltd; Journal of Environmental Chemical Engineering; 5; 6; 12-2017; 5868-5875
2213-3437
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/S2213343717305766
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jece.2017.11.018
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 Ltd
publisher.none.fl_str_mv Elsevier Ltd
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_ 1842268939003887616
score 13.13397

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