Carbamazepine Degradation Mediated by Light in the Presence of Humic Substances-Coated Magnetite Nanoparticles

Autores
Aparicio, Francisca; Escalada, Juan Pablo; De Gerónimo, Eduardo; Aparicio, Virginia C.; García Einschlag, Fernando Sebastián; Magnacca, Giuliana; Carlos, Luciano; Mártire, Daniel Osvaldo
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The use of iron-based nanomaterials for environmental remediation processes has recently received considerable attention. Here, we employed core-shell magnetite-humic acids nanoparticles as a heterogeneous photosensitizer and iron source in photo-Fenton reaction for the degradation of the psychiatric drug carbamazepine (CBZ). CBZ showed low photodegradation rates in the presence of the magnetic nanoparticles, whereas the addition of hydrogen peroxide at pH = 3 to the system drastically increased the abatement of the contaminant. The measured Fe2+ and Fe3+ profiles point to the generation of Fe3+ at the surface of the nanoparticles, indicating a heterogeneous oxidation of the contaminant mediated by hydroxyl radicals. Products with a higher transformation degree were observed in the photo-Fenton procedure and support the attack of the HO• radical on the CBZ molecule. Promising results encourage the use of the nanoparticles as efficient iron sources with enhanced magnet-sensitive properties, suitable for applications in photo-Fenton treatments for the purification of wastewater.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Materia
Ciencias Exactas
Química
Magnetite nanoparticles
Humic acids
carbamazepine
Photo-Fenton
Contaminants of emerging concern
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/107855
Acceder
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network_name_str SEDICI (UNLP)
spelling Carbamazepine Degradation Mediated by Light in the Presence of Humic Substances-Coated Magnetite NanoparticlesAparicio, FranciscaEscalada, Juan PabloDe Gerónimo, EduardoAparicio, Virginia C.García Einschlag, Fernando SebastiánMagnacca, GiulianaCarlos, LucianoMártire, Daniel OsvaldoCiencias ExactasQuímicaMagnetite nanoparticlesHumic acidscarbamazepinePhoto-FentonContaminants of emerging concernThe use of iron-based nanomaterials for environmental remediation processes has recently received considerable attention. Here, we employed core-shell magnetite-humic acids nanoparticles as a heterogeneous photosensitizer and iron source in photo-Fenton reaction for the degradation of the psychiatric drug carbamazepine (CBZ). CBZ showed low photodegradation rates in the presence of the magnetic nanoparticles, whereas the addition of hydrogen peroxide at pH = 3 to the system drastically increased the abatement of the contaminant. The measured Fe<sup>2+</sup> and Fe<sup>3+</sup> profiles point to the generation of Fe<sup>3+</sup> at the surface of the nanoparticles, indicating a heterogeneous oxidation of the contaminant mediated by hydroxyl radicals. Products with a higher transformation degree were observed in the photo-Fenton procedure and support the attack of the HO• radical on the CBZ molecule. Promising results encourage the use of the nanoparticles as efficient iron sources with enhanced magnet-sensitive properties, suitable for applications in photo-Fenton treatments for the purification of wastewater.Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas2019info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/107855enginfo:eu-repo/semantics/altIdentifier/url/http://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC6836229&blobtype=pdfinfo:eu-repo/semantics/altIdentifier/issn/2079-4991info:eu-repo/semantics/altIdentifier/pmid/31561528info:eu-repo/semantics/altIdentifier/doi/10.3390/nano9101379info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:23:52Zoai:sedici.unlp.edu.ar:10915/107855Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:23:52.826SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Carbamazepine Degradation Mediated by Light in the Presence of Humic Substances-Coated Magnetite Nanoparticles
title Carbamazepine Degradation Mediated by Light in the Presence of Humic Substances-Coated Magnetite Nanoparticles
spellingShingle Carbamazepine Degradation Mediated by Light in the Presence of Humic Substances-Coated Magnetite Nanoparticles
Aparicio, Francisca
Ciencias Exactas
Química
Magnetite nanoparticles
Humic acids
carbamazepine
Photo-Fenton
Contaminants of emerging concern
title_short Carbamazepine Degradation Mediated by Light in the Presence of Humic Substances-Coated Magnetite Nanoparticles
title_full Carbamazepine Degradation Mediated by Light in the Presence of Humic Substances-Coated Magnetite Nanoparticles
title_fullStr Carbamazepine Degradation Mediated by Light in the Presence of Humic Substances-Coated Magnetite Nanoparticles
title_full_unstemmed Carbamazepine Degradation Mediated by Light in the Presence of Humic Substances-Coated Magnetite Nanoparticles
title_sort Carbamazepine Degradation Mediated by Light in the Presence of Humic Substances-Coated Magnetite Nanoparticles
dc.creator.none.fl_str_mv Aparicio, Francisca
Escalada, Juan Pablo
De Gerónimo, Eduardo
Aparicio, Virginia C.
García Einschlag, Fernando Sebastián
Magnacca, Giuliana
Carlos, Luciano
Mártire, Daniel Osvaldo
author Aparicio, Francisca
author_facet Aparicio, Francisca
Escalada, Juan Pablo
De Gerónimo, Eduardo
Aparicio, Virginia C.
García Einschlag, Fernando Sebastián
Magnacca, Giuliana
Carlos, Luciano
Mártire, Daniel Osvaldo
author_role author
author2 Escalada, Juan Pablo
De Gerónimo, Eduardo
Aparicio, Virginia C.
García Einschlag, Fernando Sebastián
Magnacca, Giuliana
Carlos, Luciano
Mártire, Daniel Osvaldo
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Química
Magnetite nanoparticles
Humic acids
carbamazepine
Photo-Fenton
Contaminants of emerging concern
topic Ciencias Exactas
Química
Magnetite nanoparticles
Humic acids
carbamazepine
Photo-Fenton
Contaminants of emerging concern
dc.description.none.fl_txt_mv The use of iron-based nanomaterials for environmental remediation processes has recently received considerable attention. Here, we employed core-shell magnetite-humic acids nanoparticles as a heterogeneous photosensitizer and iron source in photo-Fenton reaction for the degradation of the psychiatric drug carbamazepine (CBZ). CBZ showed low photodegradation rates in the presence of the magnetic nanoparticles, whereas the addition of hydrogen peroxide at pH = 3 to the system drastically increased the abatement of the contaminant. The measured Fe<sup>2+</sup> and Fe<sup>3+</sup> profiles point to the generation of Fe<sup>3+</sup> at the surface of the nanoparticles, indicating a heterogeneous oxidation of the contaminant mediated by hydroxyl radicals. Products with a higher transformation degree were observed in the photo-Fenton procedure and support the attack of the HO• radical on the CBZ molecule. Promising results encourage the use of the nanoparticles as efficient iron sources with enhanced magnet-sensitive properties, suitable for applications in photo-Fenton treatments for the purification of wastewater.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
description The use of iron-based nanomaterials for environmental remediation processes has recently received considerable attention. Here, we employed core-shell magnetite-humic acids nanoparticles as a heterogeneous photosensitizer and iron source in photo-Fenton reaction for the degradation of the psychiatric drug carbamazepine (CBZ). CBZ showed low photodegradation rates in the presence of the magnetic nanoparticles, whereas the addition of hydrogen peroxide at pH = 3 to the system drastically increased the abatement of the contaminant. The measured Fe<sup>2+</sup> and Fe<sup>3+</sup> profiles point to the generation of Fe<sup>3+</sup> at the surface of the nanoparticles, indicating a heterogeneous oxidation of the contaminant mediated by hydroxyl radicals. Products with a higher transformation degree were observed in the photo-Fenton procedure and support the attack of the HO• radical on the CBZ molecule. Promising results encourage the use of the nanoparticles as efficient iron sources with enhanced magnet-sensitive properties, suitable for applications in photo-Fenton treatments for the purification of wastewater.
publishDate 2019
dc.date.none.fl_str_mv 2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/107855
url http://sedici.unlp.edu.ar/handle/10915/107855
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC6836229&blobtype=pdf
info:eu-repo/semantics/altIdentifier/issn/2079-4991
info:eu-repo/semantics/altIdentifier/pmid/31561528
info:eu-repo/semantics/altIdentifier/doi/10.3390/nano9101379
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.070432

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