Carbon nitride from urea: Mechanistic study on photocatalytic hydrogen peroxide production for methyl orange removal
- Autores
- Gómez Velázquez, Laura Sthefania; Dell'arciprete, Maria Laura; Madriz Ruiz, Lorean Mercedes; Gonzalez, Monica Cristina
- Año de publicación
- 2023
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Herein, we investigated the photocatalytic removal of methyl orange (MO) under 350 nm irradiation with carbon nitride (CN) nanoparticles from urea. Participation of photogenerated charge carriers and secondary reactive species in MO degradation process was evaluated by scavenging and photoelectrochemical assays. The experiments suggest that HO• radicals are not only formed from the reaction of water with photogenerated holes, but via a three consecutive one-electron reduction of O2 involving the formation of H2O2. The photocatalytic MO degradation mechanism was proposed. The present results emphasize the importance of charge carriers' separation in the optimization of CN photocatalysis for technological uses.
Fil: Gómez Velázquez, Laura Sthefania. 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: Dell'arciprete, Maria Laura. 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: Madriz Ruiz, Lorean Mercedes. 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. Universidad Nacional de San Martin. Instituto Tecnologico de Chascomus. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - la Plata. Instituto Tecnologico de Chascomus.; Argentina
Fil: Gonzalez, Monica Cristina. 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
-
AZO DYES
CARBON NITRIDE
HYDROGEN PEROXIDE
REACTIVE SPECIES
UREA
VIBRIO FISCHERI
VISIBLE LIGHT - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/227087
Ver los metadatos del registro completo
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CONICET Digital (CONICET) |
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Carbon nitride from urea: Mechanistic study on photocatalytic hydrogen peroxide production for methyl orange removalGómez Velázquez, Laura SthefaniaDell'arciprete, Maria LauraMadriz Ruiz, Lorean MercedesGonzalez, Monica CristinaAZO DYESCARBON NITRIDEHYDROGEN PEROXIDEREACTIVE SPECIESUREAVIBRIO FISCHERIVISIBLE LIGHThttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Herein, we investigated the photocatalytic removal of methyl orange (MO) under 350 nm irradiation with carbon nitride (CN) nanoparticles from urea. Participation of photogenerated charge carriers and secondary reactive species in MO degradation process was evaluated by scavenging and photoelectrochemical assays. The experiments suggest that HO• radicals are not only formed from the reaction of water with photogenerated holes, but via a three consecutive one-electron reduction of O2 involving the formation of H2O2. The photocatalytic MO degradation mechanism was proposed. The present results emphasize the importance of charge carriers' separation in the optimization of CN photocatalysis for technological uses.Fil: Gómez Velázquez, Laura Sthefania. 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: Dell'arciprete, Maria Laura. 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: Madriz Ruiz, Lorean Mercedes. 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. Universidad Nacional de San Martin. Instituto Tecnologico de Chascomus. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - la Plata. Instituto Tecnologico de Chascomus.; ArgentinaFil: Gonzalez, Monica Cristina. 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; ArgentinaElsevier Science2023-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/227087Gómez Velázquez, Laura Sthefania; Dell'arciprete, Maria Laura; Madriz Ruiz, Lorean Mercedes; Gonzalez, Monica Cristina; Carbon nitride from urea: Mechanistic study on photocatalytic hydrogen peroxide production for methyl orange removal; Elsevier Science; Catalysis Communications; 175; 2-2023; 1-121566-7367CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S1566736723000195info:eu-repo/semantics/altIdentifier/doi/10.1016/j.catcom.2023.106617info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:30:54Zoai:ri.conicet.gov.ar:11336/227087instacron: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:34982025-09-29 10:30:54.53CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Carbon nitride from urea: Mechanistic study on photocatalytic hydrogen peroxide production for methyl orange removal |
title |
Carbon nitride from urea: Mechanistic study on photocatalytic hydrogen peroxide production for methyl orange removal |
spellingShingle |
Carbon nitride from urea: Mechanistic study on photocatalytic hydrogen peroxide production for methyl orange removal Gómez Velázquez, Laura Sthefania AZO DYES CARBON NITRIDE HYDROGEN PEROXIDE REACTIVE SPECIES UREA VIBRIO FISCHERI VISIBLE LIGHT |
title_short |
Carbon nitride from urea: Mechanistic study on photocatalytic hydrogen peroxide production for methyl orange removal |
title_full |
Carbon nitride from urea: Mechanistic study on photocatalytic hydrogen peroxide production for methyl orange removal |
title_fullStr |
Carbon nitride from urea: Mechanistic study on photocatalytic hydrogen peroxide production for methyl orange removal |
title_full_unstemmed |
Carbon nitride from urea: Mechanistic study on photocatalytic hydrogen peroxide production for methyl orange removal |
title_sort |
Carbon nitride from urea: Mechanistic study on photocatalytic hydrogen peroxide production for methyl orange removal |
dc.creator.none.fl_str_mv |
Gómez Velázquez, Laura Sthefania Dell'arciprete, Maria Laura Madriz Ruiz, Lorean Mercedes Gonzalez, Monica Cristina |
author |
Gómez Velázquez, Laura Sthefania |
author_facet |
Gómez Velázquez, Laura Sthefania Dell'arciprete, Maria Laura Madriz Ruiz, Lorean Mercedes Gonzalez, Monica Cristina |
author_role |
author |
author2 |
Dell'arciprete, Maria Laura Madriz Ruiz, Lorean Mercedes Gonzalez, Monica Cristina |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
AZO DYES CARBON NITRIDE HYDROGEN PEROXIDE REACTIVE SPECIES UREA VIBRIO FISCHERI VISIBLE LIGHT |
topic |
AZO DYES CARBON NITRIDE HYDROGEN PEROXIDE REACTIVE SPECIES UREA VIBRIO FISCHERI VISIBLE LIGHT |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Herein, we investigated the photocatalytic removal of methyl orange (MO) under 350 nm irradiation with carbon nitride (CN) nanoparticles from urea. Participation of photogenerated charge carriers and secondary reactive species in MO degradation process was evaluated by scavenging and photoelectrochemical assays. The experiments suggest that HO• radicals are not only formed from the reaction of water with photogenerated holes, but via a three consecutive one-electron reduction of O2 involving the formation of H2O2. The photocatalytic MO degradation mechanism was proposed. The present results emphasize the importance of charge carriers' separation in the optimization of CN photocatalysis for technological uses. Fil: Gómez Velázquez, Laura Sthefania. 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: Dell'arciprete, Maria Laura. 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: Madriz Ruiz, Lorean Mercedes. 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. Universidad Nacional de San Martin. Instituto Tecnologico de Chascomus. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - la Plata. Instituto Tecnologico de Chascomus.; Argentina Fil: Gonzalez, Monica Cristina. 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 |
Herein, we investigated the photocatalytic removal of methyl orange (MO) under 350 nm irradiation with carbon nitride (CN) nanoparticles from urea. Participation of photogenerated charge carriers and secondary reactive species in MO degradation process was evaluated by scavenging and photoelectrochemical assays. The experiments suggest that HO• radicals are not only formed from the reaction of water with photogenerated holes, but via a three consecutive one-electron reduction of O2 involving the formation of H2O2. The photocatalytic MO degradation mechanism was proposed. The present results emphasize the importance of charge carriers' separation in the optimization of CN photocatalysis for technological uses. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-02 |
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/11336/227087 Gómez Velázquez, Laura Sthefania; Dell'arciprete, Maria Laura; Madriz Ruiz, Lorean Mercedes; Gonzalez, Monica Cristina; Carbon nitride from urea: Mechanistic study on photocatalytic hydrogen peroxide production for methyl orange removal; Elsevier Science; Catalysis Communications; 175; 2-2023; 1-12 1566-7367 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/227087 |
identifier_str_mv |
Gómez Velázquez, Laura Sthefania; Dell'arciprete, Maria Laura; Madriz Ruiz, Lorean Mercedes; Gonzalez, Monica Cristina; Carbon nitride from urea: Mechanistic study on photocatalytic hydrogen peroxide production for methyl orange removal; Elsevier Science; Catalysis Communications; 175; 2-2023; 1-12 1566-7367 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S1566736723000195 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.catcom.2023.106617 |
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 |
dc.publisher.none.fl_str_mv |
Elsevier Science |
publisher.none.fl_str_mv |
Elsevier Science |
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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1844614318164803584 |
score |
13.070432 |