Development of a chitin/graphene oxide hybrid composite for the removal of pollutant dyes: Adsorption and desorption study

Autores
González, Joaquín Antonio; Villanueva, María Emilia; Piehl, Lidia Leonor; Copello, Guillermo Javier
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This work presents the synthesis of chitin (Chi) and chitin/graphene oxide (Chi:nGO) hybrid gels in mild conditions and their use as biosorbents in solid-liquid batch systems. The graphene oxide nanosheets, obtained from natural graphite through Hummers method, were characterized using FT-IR, ESR and pHpzc determination as a qualitative approach of the degree of exfoliation and oxidation. Two kinds of widely used dyes were tested: Remazol Black (RB) as an acid dye model and Neutral Red (NR) as a basic dye model. Adsorption assays results were analyzed using two and three parameters isotherm models. The maximum adsorption capacity (qm) for RB and NR were 9.3×10-2mmol/g and 57×10-2mmol/g being the first one reached by Chi and the second by the hybrid. Furthermore, the adsorption behavior over the time was evaluated through pseudo-first, pseudo-second, Elovich and Modified Freundlich models being the first one which described better all the cases except the adsorption of Remazol Black on chitin gel which follows an Elovich tendency. According to the pseudo-first order model, the uptake rates (k1) were between 1.1×10-2min-1 and 1.4×10-2min-1, but for the Chi:nGO-NR system it was 1.7×10-3min-1. The adsorption was observed to be dependent on both the solution pH and the Chi:nGO proportion. Finally, both dyes can be desorbed from both kinds of materials up to 60% of the sorbed amount by increasing the solution pH above 8. This would imply the capability of reutilization of the material with minor sorption capacity.
Fil: González, Joaquín Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Metabolismo del Fármaco. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Metabolismo del Fármaco; Argentina
Fil: Villanueva, María Emilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Metabolismo del Fármaco. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Metabolismo del Fármaco; Argentina
Fil: Piehl, Lidia Leonor. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Copello, Guillermo Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Metabolismo del Fármaco. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Metabolismo del Fármaco; Argentina
Materia
Biosorbent
Chitin
Graphene Oxide Nanosheets
Hybrid Material
Pollutants Dyes
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:11336/38916
Acceder
id CONICETDig_ba7388f82155144ffb17ca2f83e4215f
oai_identifier_str oai:ri.conicet.gov.ar:11336/38916
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Development of a chitin/graphene oxide hybrid composite for the removal of pollutant dyes: Adsorption and desorption studyGonzález, Joaquín AntonioVillanueva, María EmiliaPiehl, Lidia LeonorCopello, Guillermo JavierBiosorbentChitinGraphene Oxide NanosheetsHybrid MaterialPollutants Dyeshttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1This work presents the synthesis of chitin (Chi) and chitin/graphene oxide (Chi:nGO) hybrid gels in mild conditions and their use as biosorbents in solid-liquid batch systems. The graphene oxide nanosheets, obtained from natural graphite through Hummers method, were characterized using FT-IR, ESR and pHpzc determination as a qualitative approach of the degree of exfoliation and oxidation. Two kinds of widely used dyes were tested: Remazol Black (RB) as an acid dye model and Neutral Red (NR) as a basic dye model. Adsorption assays results were analyzed using two and three parameters isotherm models. The maximum adsorption capacity (qm) for RB and NR were 9.3×10-2mmol/g and 57×10-2mmol/g being the first one reached by Chi and the second by the hybrid. Furthermore, the adsorption behavior over the time was evaluated through pseudo-first, pseudo-second, Elovich and Modified Freundlich models being the first one which described better all the cases except the adsorption of Remazol Black on chitin gel which follows an Elovich tendency. According to the pseudo-first order model, the uptake rates (k1) were between 1.1×10-2min-1 and 1.4×10-2min-1, but for the Chi:nGO-NR system it was 1.7×10-3min-1. The adsorption was observed to be dependent on both the solution pH and the Chi:nGO proportion. Finally, both dyes can be desorbed from both kinds of materials up to 60% of the sorbed amount by increasing the solution pH above 8. This would imply the capability of reutilization of the material with minor sorption capacity.Fil: González, Joaquín Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Metabolismo del Fármaco. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Metabolismo del Fármaco; ArgentinaFil: Villanueva, María Emilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Metabolismo del Fármaco. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Metabolismo del Fármaco; ArgentinaFil: Piehl, Lidia Leonor. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Copello, Guillermo Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Metabolismo del Fármaco. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Metabolismo del Fármaco; ArgentinaElsevier Science Sa2015-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/38916González, Joaquín Antonio; Villanueva, María Emilia; Piehl, Lidia Leonor; Copello, Guillermo Javier; Development of a chitin/graphene oxide hybrid composite for the removal of pollutant dyes: Adsorption and desorption study; Elsevier Science Sa; Chemical Engineering Journal; 280; 11-2015; 41-481385-8947CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1385894715008001info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cej.2015.05.112info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:46:59Zoai:ri.conicet.gov.ar:11336/38916instacron: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 09:46:59.39CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Development of a chitin/graphene oxide hybrid composite for the removal of pollutant dyes: Adsorption and desorption study
title Development of a chitin/graphene oxide hybrid composite for the removal of pollutant dyes: Adsorption and desorption study
spellingShingle Development of a chitin/graphene oxide hybrid composite for the removal of pollutant dyes: Adsorption and desorption study
González, Joaquín Antonio
Biosorbent
Chitin
Graphene Oxide Nanosheets
Hybrid Material
Pollutants Dyes
title_short Development of a chitin/graphene oxide hybrid composite for the removal of pollutant dyes: Adsorption and desorption study
title_full Development of a chitin/graphene oxide hybrid composite for the removal of pollutant dyes: Adsorption and desorption study
title_fullStr Development of a chitin/graphene oxide hybrid composite for the removal of pollutant dyes: Adsorption and desorption study
title_full_unstemmed Development of a chitin/graphene oxide hybrid composite for the removal of pollutant dyes: Adsorption and desorption study
title_sort Development of a chitin/graphene oxide hybrid composite for the removal of pollutant dyes: Adsorption and desorption study
dc.creator.none.fl_str_mv González, Joaquín Antonio
Villanueva, María Emilia
Piehl, Lidia Leonor
Copello, Guillermo Javier
author González, Joaquín Antonio
author_facet González, Joaquín Antonio
Villanueva, María Emilia
Piehl, Lidia Leonor
Copello, Guillermo Javier
author_role author
author2 Villanueva, María Emilia
Piehl, Lidia Leonor
Copello, Guillermo Javier
author2_role author
author
author
dc.subject.none.fl_str_mv Biosorbent
Chitin
Graphene Oxide Nanosheets
Hybrid Material
Pollutants Dyes
topic Biosorbent
Chitin
Graphene Oxide Nanosheets
Hybrid Material
Pollutants Dyes
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv This work presents the synthesis of chitin (Chi) and chitin/graphene oxide (Chi:nGO) hybrid gels in mild conditions and their use as biosorbents in solid-liquid batch systems. The graphene oxide nanosheets, obtained from natural graphite through Hummers method, were characterized using FT-IR, ESR and pHpzc determination as a qualitative approach of the degree of exfoliation and oxidation. Two kinds of widely used dyes were tested: Remazol Black (RB) as an acid dye model and Neutral Red (NR) as a basic dye model. Adsorption assays results were analyzed using two and three parameters isotherm models. The maximum adsorption capacity (qm) for RB and NR were 9.3×10-2mmol/g and 57×10-2mmol/g being the first one reached by Chi and the second by the hybrid. Furthermore, the adsorption behavior over the time was evaluated through pseudo-first, pseudo-second, Elovich and Modified Freundlich models being the first one which described better all the cases except the adsorption of Remazol Black on chitin gel which follows an Elovich tendency. According to the pseudo-first order model, the uptake rates (k1) were between 1.1×10-2min-1 and 1.4×10-2min-1, but for the Chi:nGO-NR system it was 1.7×10-3min-1. The adsorption was observed to be dependent on both the solution pH and the Chi:nGO proportion. Finally, both dyes can be desorbed from both kinds of materials up to 60% of the sorbed amount by increasing the solution pH above 8. This would imply the capability of reutilization of the material with minor sorption capacity.
Fil: González, Joaquín Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Metabolismo del Fármaco. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Metabolismo del Fármaco; Argentina
Fil: Villanueva, María Emilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Metabolismo del Fármaco. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Metabolismo del Fármaco; Argentina
Fil: Piehl, Lidia Leonor. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Copello, Guillermo Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Metabolismo del Fármaco. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Metabolismo del Fármaco; Argentina
description This work presents the synthesis of chitin (Chi) and chitin/graphene oxide (Chi:nGO) hybrid gels in mild conditions and their use as biosorbents in solid-liquid batch systems. The graphene oxide nanosheets, obtained from natural graphite through Hummers method, were characterized using FT-IR, ESR and pHpzc determination as a qualitative approach of the degree of exfoliation and oxidation. Two kinds of widely used dyes were tested: Remazol Black (RB) as an acid dye model and Neutral Red (NR) as a basic dye model. Adsorption assays results were analyzed using two and three parameters isotherm models. The maximum adsorption capacity (qm) for RB and NR were 9.3×10-2mmol/g and 57×10-2mmol/g being the first one reached by Chi and the second by the hybrid. Furthermore, the adsorption behavior over the time was evaluated through pseudo-first, pseudo-second, Elovich and Modified Freundlich models being the first one which described better all the cases except the adsorption of Remazol Black on chitin gel which follows an Elovich tendency. According to the pseudo-first order model, the uptake rates (k1) were between 1.1×10-2min-1 and 1.4×10-2min-1, but for the Chi:nGO-NR system it was 1.7×10-3min-1. The adsorption was observed to be dependent on both the solution pH and the Chi:nGO proportion. Finally, both dyes can be desorbed from both kinds of materials up to 60% of the sorbed amount by increasing the solution pH above 8. This would imply the capability of reutilization of the material with minor sorption capacity.
publishDate 2015
dc.date.none.fl_str_mv 2015-11
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/11336/38916
González, Joaquín Antonio; Villanueva, María Emilia; Piehl, Lidia Leonor; Copello, Guillermo Javier; Development of a chitin/graphene oxide hybrid composite for the removal of pollutant dyes: Adsorption and desorption study; Elsevier Science Sa; Chemical Engineering Journal; 280; 11-2015; 41-48
1385-8947
CONICET Digital
CONICET
url http://hdl.handle.net/11336/38916
identifier_str_mv González, Joaquín Antonio; Villanueva, María Emilia; Piehl, Lidia Leonor; Copello, Guillermo Javier; Development of a chitin/graphene oxide hybrid composite for the removal of pollutant dyes: Adsorption and desorption study; Elsevier Science Sa; Chemical Engineering Journal; 280; 11-2015; 41-48
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/http://www.sciencedirect.com/science/article/pii/S1385894715008001
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cej.2015.05.112
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
application/pdf
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
_version_ 1842268828875096064
score 13.13397

Publicaciones similares