Novel route to obtain carbon self-doped TiO2 mesoporous nanoparticles as efficient photocatalysts for environmental remediation processes under visible light

Autores
Ochoa Rodríguez, Pablo Alejandro; Benzaquén, Tamara Belén; Pecchi, Gina; Casuscelli, Sandra Graciela; Elías, Verónica Rita; Eimer, Griselda Alejandra
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Titanium dioxide materials were synthesized using two different methods. The samples were characterized by X-ray diffraction (XRD), UV-Visible diffusion reflectance spectroscopy (UV-Vis DR), Raman spectroscopy, N2 adsorption/desorption, scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), transmission electron spectroscopy (TEM) and X-ray photoelectron spectroscopy (XPS). Although both kind of materials were found to have mesoporous structure and anatase crystalline phase, one of them was obtained from a synthesis method that does not involve the use of surfactants, and therefore, does not require calcination at high temperatures. This implies that the synthesized solid was self-doped with carbon species, coming only from the same source used for titanium. Then, the relationship between the presence of these species, the final calcination temperature, and the photocatalytic activity of the solids was studied in terms of the degradation and mineralization of an Acid Orange 7 aqueous solution, under visible radiation. A photosensitizing effect caused by the non-metal presence, that allows the solid to extend its absorption range, was found. Hence, a novel route to prepare C-modified photoactive mesoporous TiO2, simpler and cheaper, where neither a template nor an external carbon source is used, could be performed.
Fil: Ochoa Rodríguez, Pablo Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigación y Tecnología Química. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación y Tecnología Química; Argentina
Fil: Benzaquén, Tamara Belén. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigación y Tecnología Química. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación y Tecnología Química; Argentina
Fil: Pecchi, Gina. Universidad de Concepción; Chile
Fil: Casuscelli, Sandra Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigación y Tecnología Química. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación y Tecnología Química; Argentina
Fil: Elías, Verónica Rita. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigación y Tecnología Química. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación y Tecnología Química; Argentina
Fil: Eimer, Griselda Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigación y Tecnología Química. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación y Tecnología Química; Argentina
Materia
MESOPOROUS TIO2
NON-METAL DOPING
ORGANIC POLLUTANTS
PHOTOCATALYSIS
VISIBLE LIGHT
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/93358
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/93358
network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Novel route to obtain carbon self-doped TiO2 mesoporous nanoparticles as efficient photocatalysts for environmental remediation processes under visible lightOchoa Rodríguez, Pablo AlejandroBenzaquén, Tamara BelénPecchi, GinaCasuscelli, Sandra GracielaElías, Verónica RitaEimer, Griselda AlejandraMESOPOROUS TIO2NON-METAL DOPINGORGANIC POLLUTANTSPHOTOCATALYSISVISIBLE LIGHThttps://purl.org/becyt/ford/2.7https://purl.org/becyt/ford/2Titanium dioxide materials were synthesized using two different methods. The samples were characterized by X-ray diffraction (XRD), UV-Visible diffusion reflectance spectroscopy (UV-Vis DR), Raman spectroscopy, N2 adsorption/desorption, scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), transmission electron spectroscopy (TEM) and X-ray photoelectron spectroscopy (XPS). Although both kind of materials were found to have mesoporous structure and anatase crystalline phase, one of them was obtained from a synthesis method that does not involve the use of surfactants, and therefore, does not require calcination at high temperatures. This implies that the synthesized solid was self-doped with carbon species, coming only from the same source used for titanium. Then, the relationship between the presence of these species, the final calcination temperature, and the photocatalytic activity of the solids was studied in terms of the degradation and mineralization of an Acid Orange 7 aqueous solution, under visible radiation. A photosensitizing effect caused by the non-metal presence, that allows the solid to extend its absorption range, was found. Hence, a novel route to prepare C-modified photoactive mesoporous TiO2, simpler and cheaper, where neither a template nor an external carbon source is used, could be performed.Fil: Ochoa Rodríguez, Pablo Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigación y Tecnología Química. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación y Tecnología Química; ArgentinaFil: Benzaquén, Tamara Belén. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigación y Tecnología Química. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación y Tecnología Química; ArgentinaFil: Pecchi, Gina. Universidad de Concepción; ChileFil: Casuscelli, Sandra Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigación y Tecnología Química. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación y Tecnología Química; ArgentinaFil: Elías, Verónica Rita. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigación y Tecnología Química. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación y Tecnología Química; ArgentinaFil: Eimer, Griselda Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigación y Tecnología Química. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación y Tecnología Química; ArgentinaMDPI AG2019-10-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/93358Ochoa Rodríguez, Pablo Alejandro; Benzaquén, Tamara Belén; Pecchi, Gina; Casuscelli, Sandra Graciela; Elías, Verónica Rita; et al.; Novel route to obtain carbon self-doped TiO2 mesoporous nanoparticles as efficient photocatalysts for environmental remediation processes under visible light; MDPI AG; Materials; 12; 20; 14-10-20191996-19441996-1944CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.3390/ma12203349info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/1996-1944/12/20/3349info:eu-repo/semantics/altIdentifier/url/https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6829505/info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:05:38Zoai:ri.conicet.gov.ar:11336/93358instacron: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:34982025-09-03 10:05:38.329CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Novel route to obtain carbon self-doped TiO2 mesoporous nanoparticles as efficient photocatalysts for environmental remediation processes under visible light
title Novel route to obtain carbon self-doped TiO2 mesoporous nanoparticles as efficient photocatalysts for environmental remediation processes under visible light
spellingShingle Novel route to obtain carbon self-doped TiO2 mesoporous nanoparticles as efficient photocatalysts for environmental remediation processes under visible light
Ochoa Rodríguez, Pablo Alejandro
MESOPOROUS TIO2
NON-METAL DOPING
ORGANIC POLLUTANTS
PHOTOCATALYSIS
VISIBLE LIGHT
title_short Novel route to obtain carbon self-doped TiO2 mesoporous nanoparticles as efficient photocatalysts for environmental remediation processes under visible light
title_full Novel route to obtain carbon self-doped TiO2 mesoporous nanoparticles as efficient photocatalysts for environmental remediation processes under visible light
title_fullStr Novel route to obtain carbon self-doped TiO2 mesoporous nanoparticles as efficient photocatalysts for environmental remediation processes under visible light
title_full_unstemmed Novel route to obtain carbon self-doped TiO2 mesoporous nanoparticles as efficient photocatalysts for environmental remediation processes under visible light
title_sort Novel route to obtain carbon self-doped TiO2 mesoporous nanoparticles as efficient photocatalysts for environmental remediation processes under visible light
dc.creator.none.fl_str_mv Ochoa Rodríguez, Pablo Alejandro
Benzaquén, Tamara Belén
Pecchi, Gina
Casuscelli, Sandra Graciela
Elías, Verónica Rita
Eimer, Griselda Alejandra
author Ochoa Rodríguez, Pablo Alejandro
author_facet Ochoa Rodríguez, Pablo Alejandro
Benzaquén, Tamara Belén
Pecchi, Gina
Casuscelli, Sandra Graciela
Elías, Verónica Rita
Eimer, Griselda Alejandra
author_role author
author2 Benzaquén, Tamara Belén
Pecchi, Gina
Casuscelli, Sandra Graciela
Elías, Verónica Rita
Eimer, Griselda Alejandra
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv MESOPOROUS TIO2
NON-METAL DOPING
ORGANIC POLLUTANTS
PHOTOCATALYSIS
VISIBLE LIGHT
topic MESOPOROUS TIO2
NON-METAL DOPING
ORGANIC POLLUTANTS
PHOTOCATALYSIS
VISIBLE LIGHT
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.7
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Titanium dioxide materials were synthesized using two different methods. The samples were characterized by X-ray diffraction (XRD), UV-Visible diffusion reflectance spectroscopy (UV-Vis DR), Raman spectroscopy, N2 adsorption/desorption, scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), transmission electron spectroscopy (TEM) and X-ray photoelectron spectroscopy (XPS). Although both kind of materials were found to have mesoporous structure and anatase crystalline phase, one of them was obtained from a synthesis method that does not involve the use of surfactants, and therefore, does not require calcination at high temperatures. This implies that the synthesized solid was self-doped with carbon species, coming only from the same source used for titanium. Then, the relationship between the presence of these species, the final calcination temperature, and the photocatalytic activity of the solids was studied in terms of the degradation and mineralization of an Acid Orange 7 aqueous solution, under visible radiation. A photosensitizing effect caused by the non-metal presence, that allows the solid to extend its absorption range, was found. Hence, a novel route to prepare C-modified photoactive mesoporous TiO2, simpler and cheaper, where neither a template nor an external carbon source is used, could be performed.
Fil: Ochoa Rodríguez, Pablo Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigación y Tecnología Química. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación y Tecnología Química; Argentina
Fil: Benzaquén, Tamara Belén. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigación y Tecnología Química. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación y Tecnología Química; Argentina
Fil: Pecchi, Gina. Universidad de Concepción; Chile
Fil: Casuscelli, Sandra Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigación y Tecnología Química. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación y Tecnología Química; Argentina
Fil: Elías, Verónica Rita. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigación y Tecnología Química. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación y Tecnología Química; Argentina
Fil: Eimer, Griselda Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigación y Tecnología Química. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación y Tecnología Química; Argentina
description Titanium dioxide materials were synthesized using two different methods. The samples were characterized by X-ray diffraction (XRD), UV-Visible diffusion reflectance spectroscopy (UV-Vis DR), Raman spectroscopy, N2 adsorption/desorption, scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), transmission electron spectroscopy (TEM) and X-ray photoelectron spectroscopy (XPS). Although both kind of materials were found to have mesoporous structure and anatase crystalline phase, one of them was obtained from a synthesis method that does not involve the use of surfactants, and therefore, does not require calcination at high temperatures. This implies that the synthesized solid was self-doped with carbon species, coming only from the same source used for titanium. Then, the relationship between the presence of these species, the final calcination temperature, and the photocatalytic activity of the solids was studied in terms of the degradation and mineralization of an Acid Orange 7 aqueous solution, under visible radiation. A photosensitizing effect caused by the non-metal presence, that allows the solid to extend its absorption range, was found. Hence, a novel route to prepare C-modified photoactive mesoporous TiO2, simpler and cheaper, where neither a template nor an external carbon source is used, could be performed.
publishDate 2019
dc.date.none.fl_str_mv 2019-10-14
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/11336/93358
Ochoa Rodríguez, Pablo Alejandro; Benzaquén, Tamara Belén; Pecchi, Gina; Casuscelli, Sandra Graciela; Elías, Verónica Rita; et al.; Novel route to obtain carbon self-doped TiO2 mesoporous nanoparticles as efficient photocatalysts for environmental remediation processes under visible light; MDPI AG; Materials; 12; 20; 14-10-2019
1996-1944
1996-1944
CONICET Digital
CONICET
url http://hdl.handle.net/11336/93358
identifier_str_mv Ochoa Rodríguez, Pablo Alejandro; Benzaquén, Tamara Belén; Pecchi, Gina; Casuscelli, Sandra Graciela; Elías, Verónica Rita; et al.; Novel route to obtain carbon self-doped TiO2 mesoporous nanoparticles as efficient photocatalysts for environmental remediation processes under visible light; MDPI AG; Materials; 12; 20; 14-10-2019
1996-1944
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.3390/ma12203349
info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/1996-1944/12/20/3349
info:eu-repo/semantics/altIdentifier/url/https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6829505/
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv MDPI AG
publisher.none.fl_str_mv MDPI AG
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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score 13.13397

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