Adsorption of the disinfectant benzalkonium chloride on montmorillonite: Synergistic effect in mixture of molecules with different chain lengths

Autores
Zanini, Graciela Pilar; Gleerub Ovensen, Rikke; Hansen, H. C. B.; Strobel, Bjarne W.
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The biocide benzalkonium chloride (BAC) is a mix of cationic alkylbenzyldimethylammonium surfactants having different alkyl chain lengths. A comparative study of adsorption on the phyllosilicate clay montmorillonite of two of these surfactants, with alkyl chains having respectively 12 C atoms (BAC-12) and 14 C atoms (BAC-14), and a mixture of both surfactants is presented in this work. Adsorption isotherms were performed for individual surfactants and for a 1:1 mixture BAC-12+BAC-14. The adsorption was investigated in an ample concentration range that covers almost seven orders of magnitude in concentrations (from 1 nM to 10 mM), range that includes environmentally relevant concentrations. Quantification of BAC was performed by HPLC–UV and LC–MS and the results were completed with powder X-Ray diffraction. The adsorption of both surfactants leads to adsorption isotherms with two well differentiated steps. The first step corresponds almost exclusively to a cation exchange process, and the binding constant is very similar for both surfactants. The second step of the isotherms is observed at higher concentrations and adsorption is mainly driven by lateral interactions between surfactant molecules. The binding constant of this step is larger for BAC-14 than for BAC-12. Adsorption from a BAC-12+BAC-14 mixture shows a synergistic behaviour, possibly due to a better packing arrangement in the interlayer. Calculations show that in natural systems silicate clays are major sorbents of BAC at low concentrations whereas binding to humic acid is predominant at high concentrations.
Fil: Zanini, Graciela Pilar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto de Química del Sur; Argentina. Universidad de Copenhagen; Dinamarca
Fil: Gleerub Ovensen, Rikke. Universidad de Copenhagen; Dinamarca
Fil: Hansen, H. C. B.. Universidad de Copenhagen; Dinamarca
Fil: Strobel, Bjarne W.. Universidad de Copenhagen; Dinamarca
Materia
Benzalkonium
Quaternary Ammonium Compounds
Montmorillonite
Surfactant Mixed
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:11336/5419
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/5419
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Adsorption of the disinfectant benzalkonium chloride on montmorillonite: Synergistic effect in mixture of molecules with different chain lengthsZanini, Graciela PilarGleerub Ovensen, RikkeHansen, H. C. B.Strobel, Bjarne W.BenzalkoniumQuaternary Ammonium CompoundsMontmorilloniteSurfactant Mixedhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The biocide benzalkonium chloride (BAC) is a mix of cationic alkylbenzyldimethylammonium surfactants having different alkyl chain lengths. A comparative study of adsorption on the phyllosilicate clay montmorillonite of two of these surfactants, with alkyl chains having respectively 12 C atoms (BAC-12) and 14 C atoms (BAC-14), and a mixture of both surfactants is presented in this work. Adsorption isotherms were performed for individual surfactants and for a 1:1 mixture BAC-12+BAC-14. The adsorption was investigated in an ample concentration range that covers almost seven orders of magnitude in concentrations (from 1 nM to 10 mM), range that includes environmentally relevant concentrations. Quantification of BAC was performed by HPLC–UV and LC–MS and the results were completed with powder X-Ray diffraction. The adsorption of both surfactants leads to adsorption isotherms with two well differentiated steps. The first step corresponds almost exclusively to a cation exchange process, and the binding constant is very similar for both surfactants. The second step of the isotherms is observed at higher concentrations and adsorption is mainly driven by lateral interactions between surfactant molecules. The binding constant of this step is larger for BAC-14 than for BAC-12. Adsorption from a BAC-12+BAC-14 mixture shows a synergistic behaviour, possibly due to a better packing arrangement in the interlayer. Calculations show that in natural systems silicate clays are major sorbents of BAC at low concentrations whereas binding to humic acid is predominant at high concentrations.Fil: Zanini, Graciela Pilar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto de Química del Sur; Argentina. Universidad de Copenhagen; DinamarcaFil: Gleerub Ovensen, Rikke. Universidad de Copenhagen; DinamarcaFil: Hansen, H. C. B.. Universidad de Copenhagen; DinamarcaFil: Strobel, Bjarne W.. Universidad de Copenhagen; DinamarcaElsevier2013-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/5419Zanini, Graciela Pilar; Gleerub Ovensen, Rikke; Hansen, H. C. B.; Strobel, Bjarne W.; Adsorption of the disinfectant benzalkonium chloride on montmorillonite: Synergistic effect in mixture of molecules with different chain lengths; Elsevier; Journal of Environmental Management; 128; 4-2013; 100-1050301-4797enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S030147971300306Xinfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.jenvman.2013.04.056info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:32:55Zoai:ri.conicet.gov.ar:11336/5419instacron: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:34982025-10-22 11:32:55.627CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Adsorption of the disinfectant benzalkonium chloride on montmorillonite: Synergistic effect in mixture of molecules with different chain lengths
title Adsorption of the disinfectant benzalkonium chloride on montmorillonite: Synergistic effect in mixture of molecules with different chain lengths
spellingShingle Adsorption of the disinfectant benzalkonium chloride on montmorillonite: Synergistic effect in mixture of molecules with different chain lengths
Zanini, Graciela Pilar
Benzalkonium
Quaternary Ammonium Compounds
Montmorillonite
Surfactant Mixed
title_short Adsorption of the disinfectant benzalkonium chloride on montmorillonite: Synergistic effect in mixture of molecules with different chain lengths
title_full Adsorption of the disinfectant benzalkonium chloride on montmorillonite: Synergistic effect in mixture of molecules with different chain lengths
title_fullStr Adsorption of the disinfectant benzalkonium chloride on montmorillonite: Synergistic effect in mixture of molecules with different chain lengths
title_full_unstemmed Adsorption of the disinfectant benzalkonium chloride on montmorillonite: Synergistic effect in mixture of molecules with different chain lengths
title_sort Adsorption of the disinfectant benzalkonium chloride on montmorillonite: Synergistic effect in mixture of molecules with different chain lengths
dc.creator.none.fl_str_mv Zanini, Graciela Pilar
Gleerub Ovensen, Rikke
Hansen, H. C. B.
Strobel, Bjarne W.
author Zanini, Graciela Pilar
author_facet Zanini, Graciela Pilar
Gleerub Ovensen, Rikke
Hansen, H. C. B.
Strobel, Bjarne W.
author_role author
author2 Gleerub Ovensen, Rikke
Hansen, H. C. B.
Strobel, Bjarne W.
author2_role author
author
author
dc.subject.none.fl_str_mv Benzalkonium
Quaternary Ammonium Compounds
Montmorillonite
Surfactant Mixed
topic Benzalkonium
Quaternary Ammonium Compounds
Montmorillonite
Surfactant Mixed
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 biocide benzalkonium chloride (BAC) is a mix of cationic alkylbenzyldimethylammonium surfactants having different alkyl chain lengths. A comparative study of adsorption on the phyllosilicate clay montmorillonite of two of these surfactants, with alkyl chains having respectively 12 C atoms (BAC-12) and 14 C atoms (BAC-14), and a mixture of both surfactants is presented in this work. Adsorption isotherms were performed for individual surfactants and for a 1:1 mixture BAC-12+BAC-14. The adsorption was investigated in an ample concentration range that covers almost seven orders of magnitude in concentrations (from 1 nM to 10 mM), range that includes environmentally relevant concentrations. Quantification of BAC was performed by HPLC–UV and LC–MS and the results were completed with powder X-Ray diffraction. The adsorption of both surfactants leads to adsorption isotherms with two well differentiated steps. The first step corresponds almost exclusively to a cation exchange process, and the binding constant is very similar for both surfactants. The second step of the isotherms is observed at higher concentrations and adsorption is mainly driven by lateral interactions between surfactant molecules. The binding constant of this step is larger for BAC-14 than for BAC-12. Adsorption from a BAC-12+BAC-14 mixture shows a synergistic behaviour, possibly due to a better packing arrangement in the interlayer. Calculations show that in natural systems silicate clays are major sorbents of BAC at low concentrations whereas binding to humic acid is predominant at high concentrations.
Fil: Zanini, Graciela Pilar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto de Química del Sur; Argentina. Universidad de Copenhagen; Dinamarca
Fil: Gleerub Ovensen, Rikke. Universidad de Copenhagen; Dinamarca
Fil: Hansen, H. C. B.. Universidad de Copenhagen; Dinamarca
Fil: Strobel, Bjarne W.. Universidad de Copenhagen; Dinamarca
description The biocide benzalkonium chloride (BAC) is a mix of cationic alkylbenzyldimethylammonium surfactants having different alkyl chain lengths. A comparative study of adsorption on the phyllosilicate clay montmorillonite of two of these surfactants, with alkyl chains having respectively 12 C atoms (BAC-12) and 14 C atoms (BAC-14), and a mixture of both surfactants is presented in this work. Adsorption isotherms were performed for individual surfactants and for a 1:1 mixture BAC-12+BAC-14. The adsorption was investigated in an ample concentration range that covers almost seven orders of magnitude in concentrations (from 1 nM to 10 mM), range that includes environmentally relevant concentrations. Quantification of BAC was performed by HPLC–UV and LC–MS and the results were completed with powder X-Ray diffraction. The adsorption of both surfactants leads to adsorption isotherms with two well differentiated steps. The first step corresponds almost exclusively to a cation exchange process, and the binding constant is very similar for both surfactants. The second step of the isotherms is observed at higher concentrations and adsorption is mainly driven by lateral interactions between surfactant molecules. The binding constant of this step is larger for BAC-14 than for BAC-12. Adsorption from a BAC-12+BAC-14 mixture shows a synergistic behaviour, possibly due to a better packing arrangement in the interlayer. Calculations show that in natural systems silicate clays are major sorbents of BAC at low concentrations whereas binding to humic acid is predominant at high concentrations.
publishDate 2013
dc.date.none.fl_str_mv 2013-04
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/11336/5419
Zanini, Graciela Pilar; Gleerub Ovensen, Rikke; Hansen, H. C. B.; Strobel, Bjarne W.; Adsorption of the disinfectant benzalkonium chloride on montmorillonite: Synergistic effect in mixture of molecules with different chain lengths; Elsevier; Journal of Environmental Management; 128; 4-2013; 100-105
0301-4797
url http://hdl.handle.net/11336/5419
identifier_str_mv Zanini, Graciela Pilar; Gleerub Ovensen, Rikke; Hansen, H. C. B.; Strobel, Bjarne W.; Adsorption of the disinfectant benzalkonium chloride on montmorillonite: Synergistic effect in mixture of molecules with different chain lengths; Elsevier; Journal of Environmental Management; 128; 4-2013; 100-105
0301-4797
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/S030147971300306X
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jenvman.2013.04.056
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
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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 12.982451

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