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
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/227087

id CONICETDig_e96cb00e645f6495d8ef1d46a52bb102
oai_identifier_str oai:ri.conicet.gov.ar:11336/227087
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling 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
_version_ 1844614318164803584
score 13.070432