Photocatalytic activity of NiZnAl hydrotalcite-like compound/carbon nitride composites for the degradation of methylparaben

Autores
Sun, Tingwei; Benedictto, Germán; Gonzalez, Maximiliano Ricardo; Legnoverde, María Soledad; Raymundo-Piñero, Encarnacion; Basaldella, Elena Isabel; Ania, Conchi
Año de publicación
2025
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The scope of this study is to improve the photocatalytic performance of C₃N₄ for the degradation of methylparaben in solution, upon the immobilization of the semiconductor in the interlayer spacing of a NiZnAlhydrotalcite like compound (LDH). The growth of LDH in the presence of a homogenous dispersion of increasing amounts of carbon nitride allowed the incorporation of this carbon-based semiconductor in the interlayer space of the LDH. The prepared photocatalysts exhibited light absorption features similar to those of the pristine semiconductor and displayed better photocatalytic performance for the degradation of methylparaben and intermediates (higher conversions and degradation rates). This is attributed to the improved separation of the photogenerated charge carriers boosted by the interfacial contact between the carbon nitride confined in the lamellar structure of the hydrotalcite-like compound. The best performing material containing 15 wt% of carbon nitride showed good cycling stability over 20 h of illumination. The confinement of C₃N₄ affects the photodegradation mechanisms of methylparaben, with a hydroxylation-mediated reaction through the photogenerated holes as the main oxidation pathway and a minor impact of dissolved oxygen formed upon reaction of the photogenerated electrons.
Centro de Investigación y Desarrollo en Ciencias Aplicadas
Materia
Química
LDH-carbon nitride, photocatalysis
Emerging pollutants
Scavengers
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:10915/182122
Acceder
id SEDICI_239a70fff781b505d0289424b2c7082e
oai_identifier_str oai:sedici.unlp.edu.ar:10915/182122
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Photocatalytic activity of NiZnAl hydrotalcite-like compound/carbon nitride composites for the degradation of methylparabenSun, TingweiBenedictto, GermánGonzalez, Maximiliano RicardoLegnoverde, María SoledadRaymundo-Piñero, EncarnacionBasaldella, Elena IsabelAnia, ConchiQuímicaLDH-carbon nitride, photocatalysisEmerging pollutantsScavengersThe scope of this study is to improve the photocatalytic performance of C₃N₄ for the degradation of methylparaben in solution, upon the immobilization of the semiconductor in the interlayer spacing of a NiZnAlhydrotalcite like compound (LDH). The growth of LDH in the presence of a homogenous dispersion of increasing amounts of carbon nitride allowed the incorporation of this carbon-based semiconductor in the interlayer space of the LDH. The prepared photocatalysts exhibited light absorption features similar to those of the pristine semiconductor and displayed better photocatalytic performance for the degradation of methylparaben and intermediates (higher conversions and degradation rates). This is attributed to the improved separation of the photogenerated charge carriers boosted by the interfacial contact between the carbon nitride confined in the lamellar structure of the hydrotalcite-like compound. The best performing material containing 15 wt% of carbon nitride showed good cycling stability over 20 h of illumination. The confinement of C₃N₄ affects the photodegradation mechanisms of methylparaben, with a hydroxylation-mediated reaction through the photogenerated holes as the main oxidation pathway and a minor impact of dissolved oxygen formed upon reaction of the photogenerated electrons.Centro de Investigación y Desarrollo en Ciencias Aplicadas2025-11info: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/10915/182122enginfo:eu-repo/semantics/altIdentifier/issn/0920-5861info:eu-repo/semantics/altIdentifier/issn/1873-4308info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cattod.2025.115432info: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:UNLP2025-09-29T11:49:43Zoai:sedici.unlp.edu.ar:10915/182122Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:49:44.102SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Photocatalytic activity of NiZnAl hydrotalcite-like compound/carbon nitride composites for the degradation of methylparaben
title Photocatalytic activity of NiZnAl hydrotalcite-like compound/carbon nitride composites for the degradation of methylparaben
spellingShingle Photocatalytic activity of NiZnAl hydrotalcite-like compound/carbon nitride composites for the degradation of methylparaben
Sun, Tingwei
Química
LDH-carbon nitride, photocatalysis
Emerging pollutants
Scavengers
title_short Photocatalytic activity of NiZnAl hydrotalcite-like compound/carbon nitride composites for the degradation of methylparaben
title_full Photocatalytic activity of NiZnAl hydrotalcite-like compound/carbon nitride composites for the degradation of methylparaben
title_fullStr Photocatalytic activity of NiZnAl hydrotalcite-like compound/carbon nitride composites for the degradation of methylparaben
title_full_unstemmed Photocatalytic activity of NiZnAl hydrotalcite-like compound/carbon nitride composites for the degradation of methylparaben
title_sort Photocatalytic activity of NiZnAl hydrotalcite-like compound/carbon nitride composites for the degradation of methylparaben
dc.creator.none.fl_str_mv Sun, Tingwei
Benedictto, Germán
Gonzalez, Maximiliano Ricardo
Legnoverde, María Soledad
Raymundo-Piñero, Encarnacion
Basaldella, Elena Isabel
Ania, Conchi
author Sun, Tingwei
author_facet Sun, Tingwei
Benedictto, Germán
Gonzalez, Maximiliano Ricardo
Legnoverde, María Soledad
Raymundo-Piñero, Encarnacion
Basaldella, Elena Isabel
Ania, Conchi
author_role author
author2 Benedictto, Germán
Gonzalez, Maximiliano Ricardo
Legnoverde, María Soledad
Raymundo-Piñero, Encarnacion
Basaldella, Elena Isabel
Ania, Conchi
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Química
LDH-carbon nitride, photocatalysis
Emerging pollutants
Scavengers
topic Química
LDH-carbon nitride, photocatalysis
Emerging pollutants
Scavengers
dc.description.none.fl_txt_mv The scope of this study is to improve the photocatalytic performance of C₃N₄ for the degradation of methylparaben in solution, upon the immobilization of the semiconductor in the interlayer spacing of a NiZnAlhydrotalcite like compound (LDH). The growth of LDH in the presence of a homogenous dispersion of increasing amounts of carbon nitride allowed the incorporation of this carbon-based semiconductor in the interlayer space of the LDH. The prepared photocatalysts exhibited light absorption features similar to those of the pristine semiconductor and displayed better photocatalytic performance for the degradation of methylparaben and intermediates (higher conversions and degradation rates). This is attributed to the improved separation of the photogenerated charge carriers boosted by the interfacial contact between the carbon nitride confined in the lamellar structure of the hydrotalcite-like compound. The best performing material containing 15 wt% of carbon nitride showed good cycling stability over 20 h of illumination. The confinement of C₃N₄ affects the photodegradation mechanisms of methylparaben, with a hydroxylation-mediated reaction through the photogenerated holes as the main oxidation pathway and a minor impact of dissolved oxygen formed upon reaction of the photogenerated electrons.
Centro de Investigación y Desarrollo en Ciencias Aplicadas
description The scope of this study is to improve the photocatalytic performance of C₃N₄ for the degradation of methylparaben in solution, upon the immobilization of the semiconductor in the interlayer spacing of a NiZnAlhydrotalcite like compound (LDH). The growth of LDH in the presence of a homogenous dispersion of increasing amounts of carbon nitride allowed the incorporation of this carbon-based semiconductor in the interlayer space of the LDH. The prepared photocatalysts exhibited light absorption features similar to those of the pristine semiconductor and displayed better photocatalytic performance for the degradation of methylparaben and intermediates (higher conversions and degradation rates). This is attributed to the improved separation of the photogenerated charge carriers boosted by the interfacial contact between the carbon nitride confined in the lamellar structure of the hydrotalcite-like compound. The best performing material containing 15 wt% of carbon nitride showed good cycling stability over 20 h of illumination. The confinement of C₃N₄ affects the photodegradation mechanisms of methylparaben, with a hydroxylation-mediated reaction through the photogenerated holes as the main oxidation pathway and a minor impact of dissolved oxygen formed upon reaction of the photogenerated electrons.
publishDate 2025
dc.date.none.fl_str_mv 2025-11
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/10915/182122
url http://sedici.unlp.edu.ar/handle/10915/182122
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0920-5861
info:eu-repo/semantics/altIdentifier/issn/1873-4308
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cattod.2025.115432
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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