The effect of dichlorophen binding to silica nanoparticles on its photosensitized degradation in water

Autores
Escalada, Juan Pablo; Arce, Valeria Beatriz; Porcal, Gabriela Valeria; Biasutti, Maria Alicia; Criado, Susana Noemi; Garcia, Norman Andino; Martire, Daniel Osvaldo
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The production of dichlorophen (2,2′-methylenebis(4-chlorophenol), DCP) and its use as an anthelmintic and in pesticide products result in its direct release to the environment. To the purpose of modelling the possible photodegradation routes of DCP sorbed on sediments or suspended particles, the synthesis and characterization of silica nanoparticles modified with DCP (NP–DCP) is reported. The reactivity of NP–DCP with the excited states of riboflavin, a sensitizer usually present in natural waters, and with singlet oxygen were investigated. Comparison of the kinetic results obtained here to those previously reported for irradiated aqueous solutions of DCP allowed the discussion of the effect of adsorption of the pesticide on its photodegradation. We show with the aid of computer simulations that in natural waters the relevance of the different photodegradation routes dichlorophen is very much affected by attachment to sediments.
Fil: Escalada, Juan Pablo. Universidad Nacional de la Patagonia Austral; Argentina
Fil: Arce, Valeria Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Porcal, Gabriela Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Biasutti, Maria Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Criado, Susana Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Garcia, Norman Andino. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Martire, Daniel Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Materia
Dichlorophen
Photodegradation
Silica Nanoparticles
Natural Waters
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:11336/33401
Acceder
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network_name_str CONICET Digital (CONICET)
spelling The effect of dichlorophen binding to silica nanoparticles on its photosensitized degradation in waterEscalada, Juan PabloArce, Valeria BeatrizPorcal, Gabriela ValeriaBiasutti, Maria AliciaCriado, Susana NoemiGarcia, Norman AndinoMartire, Daniel OsvaldoDichlorophenPhotodegradationSilica NanoparticlesNatural Watershttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The production of dichlorophen (2,2′-methylenebis(4-chlorophenol), DCP) and its use as an anthelmintic and in pesticide products result in its direct release to the environment. To the purpose of modelling the possible photodegradation routes of DCP sorbed on sediments or suspended particles, the synthesis and characterization of silica nanoparticles modified with DCP (NP–DCP) is reported. The reactivity of NP–DCP with the excited states of riboflavin, a sensitizer usually present in natural waters, and with singlet oxygen were investigated. Comparison of the kinetic results obtained here to those previously reported for irradiated aqueous solutions of DCP allowed the discussion of the effect of adsorption of the pesticide on its photodegradation. We show with the aid of computer simulations that in natural waters the relevance of the different photodegradation routes dichlorophen is very much affected by attachment to sediments.Fil: Escalada, Juan Pablo. Universidad Nacional de la Patagonia Austral; ArgentinaFil: Arce, Valeria Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaFil: Porcal, Gabriela Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; ArgentinaFil: Biasutti, Maria Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; ArgentinaFil: Criado, Susana Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; ArgentinaFil: Garcia, Norman Andino. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; ArgentinaFil: Martire, Daniel Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaPergamon-Elsevier Science Ltd.2014-01info: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/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/33401Martire, Daniel Osvaldo; Biasutti, Maria Alicia; Arce, Valeria Beatriz; Garcia, Norman Andino; Criado, Susana Noemi; Porcal, Gabriela Valeria; et al.; The effect of dichlorophen binding to silica nanoparticles on its photosensitized degradation in water; Pergamon-Elsevier Science Ltd.; Water Research; 50; 1-2014; 229-2360043-1354CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.watres.2013.12.006info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0043135413010051info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:40:14Zoai:ri.conicet.gov.ar:11336/33401instacron: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 11:40:14.624CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The effect of dichlorophen binding to silica nanoparticles on its photosensitized degradation in water
title The effect of dichlorophen binding to silica nanoparticles on its photosensitized degradation in water
spellingShingle The effect of dichlorophen binding to silica nanoparticles on its photosensitized degradation in water
Escalada, Juan Pablo
Dichlorophen
Photodegradation
Silica Nanoparticles
Natural Waters
title_short The effect of dichlorophen binding to silica nanoparticles on its photosensitized degradation in water
title_full The effect of dichlorophen binding to silica nanoparticles on its photosensitized degradation in water
title_fullStr The effect of dichlorophen binding to silica nanoparticles on its photosensitized degradation in water
title_full_unstemmed The effect of dichlorophen binding to silica nanoparticles on its photosensitized degradation in water
title_sort The effect of dichlorophen binding to silica nanoparticles on its photosensitized degradation in water
dc.creator.none.fl_str_mv Escalada, Juan Pablo
Arce, Valeria Beatriz
Porcal, Gabriela Valeria
Biasutti, Maria Alicia
Criado, Susana Noemi
Garcia, Norman Andino
Martire, Daniel Osvaldo
author Escalada, Juan Pablo
author_facet Escalada, Juan Pablo
Arce, Valeria Beatriz
Porcal, Gabriela Valeria
Biasutti, Maria Alicia
Criado, Susana Noemi
Garcia, Norman Andino
Martire, Daniel Osvaldo
author_role author
author2 Arce, Valeria Beatriz
Porcal, Gabriela Valeria
Biasutti, Maria Alicia
Criado, Susana Noemi
Garcia, Norman Andino
Martire, Daniel Osvaldo
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Dichlorophen
Photodegradation
Silica Nanoparticles
Natural Waters
topic Dichlorophen
Photodegradation
Silica Nanoparticles
Natural Waters
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The production of dichlorophen (2,2′-methylenebis(4-chlorophenol), DCP) and its use as an anthelmintic and in pesticide products result in its direct release to the environment. To the purpose of modelling the possible photodegradation routes of DCP sorbed on sediments or suspended particles, the synthesis and characterization of silica nanoparticles modified with DCP (NP–DCP) is reported. The reactivity of NP–DCP with the excited states of riboflavin, a sensitizer usually present in natural waters, and with singlet oxygen were investigated. Comparison of the kinetic results obtained here to those previously reported for irradiated aqueous solutions of DCP allowed the discussion of the effect of adsorption of the pesticide on its photodegradation. We show with the aid of computer simulations that in natural waters the relevance of the different photodegradation routes dichlorophen is very much affected by attachment to sediments.
Fil: Escalada, Juan Pablo. Universidad Nacional de la Patagonia Austral; Argentina
Fil: Arce, Valeria Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Porcal, Gabriela Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Biasutti, Maria Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Criado, Susana Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Garcia, Norman Andino. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Martire, Daniel Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
description The production of dichlorophen (2,2′-methylenebis(4-chlorophenol), DCP) and its use as an anthelmintic and in pesticide products result in its direct release to the environment. To the purpose of modelling the possible photodegradation routes of DCP sorbed on sediments or suspended particles, the synthesis and characterization of silica nanoparticles modified with DCP (NP–DCP) is reported. The reactivity of NP–DCP with the excited states of riboflavin, a sensitizer usually present in natural waters, and with singlet oxygen were investigated. Comparison of the kinetic results obtained here to those previously reported for irradiated aqueous solutions of DCP allowed the discussion of the effect of adsorption of the pesticide on its photodegradation. We show with the aid of computer simulations that in natural waters the relevance of the different photodegradation routes dichlorophen is very much affected by attachment to sediments.
publishDate 2014
dc.date.none.fl_str_mv 2014-01
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/11336/33401
Martire, Daniel Osvaldo; Biasutti, Maria Alicia; Arce, Valeria Beatriz; Garcia, Norman Andino; Criado, Susana Noemi; Porcal, Gabriela Valeria; et al.; The effect of dichlorophen binding to silica nanoparticles on its photosensitized degradation in water; Pergamon-Elsevier Science Ltd.; Water Research; 50; 1-2014; 229-236
0043-1354
CONICET Digital
CONICET
url http://hdl.handle.net/11336/33401
identifier_str_mv Martire, Daniel Osvaldo; Biasutti, Maria Alicia; Arce, Valeria Beatriz; Garcia, Norman Andino; Criado, Susana Noemi; Porcal, Gabriela Valeria; et al.; The effect of dichlorophen binding to silica nanoparticles on its photosensitized degradation in water; Pergamon-Elsevier Science Ltd.; Water Research; 50; 1-2014; 229-236
0043-1354
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.watres.2013.12.006
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0043135413010051
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
application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd.
publisher.none.fl_str_mv Pergamon-Elsevier Science 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
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