On the nature of Cr species on MCM-41 obtained by a one step method and their enhanced photocatalytic performance under visible radiation. New insights by a combined techniques app...

Autores
Elías, Verónica Rita; Sabre, Ema Virginia; Winkler, Elin Lilian; Casuscelli, Sandra Graciela; Eimer, Griselda Alejandra
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
MCM-41 materials modified with several Cr/Si molar ratios by a direct incorporation method and thenwith Ti by impregnation, were characterized by different instrumental techniques. In order to developnew photocatalysts that uses more efficiently solar light, the aim of this work was to evaluate the directincorporation method to synthesize Cr-modified MCM-41. The synthesized solids were tested as pho-tocatalysts for the Acid Orange 7 (AO7) degradation in aqueous solution. The catalysts with Si/Cr molarratios of 60 and 40 led to AO7 degradations higher than 70% after the Ti loading. Thus, it could be con-firmed that the direct incorporation method of Cr in the synthesis gel favored the high dispersion of theactive species of Cr6+making them accessible to interact with Ti species. Finally, the presence of Ti iscrucial to achieve a better use of the radiation due to the synergistic effect with the Cr species besidesavoiding the loss of this metal to the reaction medium.
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: Sabre, Ema Virginia. 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: Winkler, Elin Lilian. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes. Gerencia de Investigación y Aplicaciones; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
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: 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 Materials
Cr Species
A07
Photocatalysis
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:11336/19848
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/19848
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling On the nature of Cr species on MCM-41 obtained by a one step method and their enhanced photocatalytic performance under visible radiation. New insights by a combined techniques approachElías, Verónica RitaSabre, Ema VirginiaWinkler, Elin LilianCasuscelli, Sandra GracielaEimer, Griselda AlejandraMesoporous MaterialsCr SpeciesA07Photocatalysishttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1MCM-41 materials modified with several Cr/Si molar ratios by a direct incorporation method and thenwith Ti by impregnation, were characterized by different instrumental techniques. In order to developnew photocatalysts that uses more efficiently solar light, the aim of this work was to evaluate the directincorporation method to synthesize Cr-modified MCM-41. The synthesized solids were tested as pho-tocatalysts for the Acid Orange 7 (AO7) degradation in aqueous solution. The catalysts with Si/Cr molarratios of 60 and 40 led to AO7 degradations higher than 70% after the Ti loading. Thus, it could be con-firmed that the direct incorporation method of Cr in the synthesis gel favored the high dispersion of theactive species of Cr6+making them accessible to interact with Ti species. Finally, the presence of Ti iscrucial to achieve a better use of the radiation due to the synergistic effect with the Cr species besidesavoiding the loss of this metal to the reaction medium.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; ArgentinaFil: Sabre, Ema Virginia. 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: Winkler, Elin Lilian. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes. Gerencia de Investigación y Aplicaciones; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: 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: 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; ArgentinaElsevier Science2013-10-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/19848Elías, Verónica Rita; Sabre, Ema Virginia; Winkler, Elin Lilian; Casuscelli, Sandra Graciela; Eimer, Griselda Alejandra; On the nature of Cr species on MCM-41 obtained by a one step method and their enhanced photocatalytic performance under visible radiation. New insights by a combined techniques approach; Elsevier Science; Applied Catalysis A: General; 467; 2-10-2013; 363-3700926-860XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcata.2013.07.059info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0926860X13004699info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-11-26T08:36:41Zoai:ri.conicet.gov.ar:11336/19848instacron: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:34982025-11-26 08:36:42.09CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv On the nature of Cr species on MCM-41 obtained by a one step method and their enhanced photocatalytic performance under visible radiation. New insights by a combined techniques approach
title On the nature of Cr species on MCM-41 obtained by a one step method and their enhanced photocatalytic performance under visible radiation. New insights by a combined techniques approach
spellingShingle On the nature of Cr species on MCM-41 obtained by a one step method and their enhanced photocatalytic performance under visible radiation. New insights by a combined techniques approach
Elías, Verónica Rita
Mesoporous Materials
Cr Species
A07
Photocatalysis
title_short On the nature of Cr species on MCM-41 obtained by a one step method and their enhanced photocatalytic performance under visible radiation. New insights by a combined techniques approach
title_full On the nature of Cr species on MCM-41 obtained by a one step method and their enhanced photocatalytic performance under visible radiation. New insights by a combined techniques approach
title_fullStr On the nature of Cr species on MCM-41 obtained by a one step method and their enhanced photocatalytic performance under visible radiation. New insights by a combined techniques approach
title_full_unstemmed On the nature of Cr species on MCM-41 obtained by a one step method and their enhanced photocatalytic performance under visible radiation. New insights by a combined techniques approach
title_sort On the nature of Cr species on MCM-41 obtained by a one step method and their enhanced photocatalytic performance under visible radiation. New insights by a combined techniques approach
dc.creator.none.fl_str_mv Elías, Verónica Rita
Sabre, Ema Virginia
Winkler, Elin Lilian
Casuscelli, Sandra Graciela
Eimer, Griselda Alejandra
author Elías, Verónica Rita
author_facet Elías, Verónica Rita
Sabre, Ema Virginia
Winkler, Elin Lilian
Casuscelli, Sandra Graciela
Eimer, Griselda Alejandra
author_role author
author2 Sabre, Ema Virginia
Winkler, Elin Lilian
Casuscelli, Sandra Graciela
Eimer, Griselda Alejandra
author2_role author
author
author
author
dc.subject.none.fl_str_mv Mesoporous Materials
Cr Species
A07
Photocatalysis
topic Mesoporous Materials
Cr Species
A07
Photocatalysis
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv MCM-41 materials modified with several Cr/Si molar ratios by a direct incorporation method and thenwith Ti by impregnation, were characterized by different instrumental techniques. In order to developnew photocatalysts that uses more efficiently solar light, the aim of this work was to evaluate the directincorporation method to synthesize Cr-modified MCM-41. The synthesized solids were tested as pho-tocatalysts for the Acid Orange 7 (AO7) degradation in aqueous solution. The catalysts with Si/Cr molarratios of 60 and 40 led to AO7 degradations higher than 70% after the Ti loading. Thus, it could be con-firmed that the direct incorporation method of Cr in the synthesis gel favored the high dispersion of theactive species of Cr6+making them accessible to interact with Ti species. Finally, the presence of Ti iscrucial to achieve a better use of the radiation due to the synergistic effect with the Cr species besidesavoiding the loss of this metal to the reaction medium.
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: Sabre, Ema Virginia. 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: Winkler, Elin Lilian. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes. Gerencia de Investigación y Aplicaciones; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
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: 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 MCM-41 materials modified with several Cr/Si molar ratios by a direct incorporation method and thenwith Ti by impregnation, were characterized by different instrumental techniques. In order to developnew photocatalysts that uses more efficiently solar light, the aim of this work was to evaluate the directincorporation method to synthesize Cr-modified MCM-41. The synthesized solids were tested as pho-tocatalysts for the Acid Orange 7 (AO7) degradation in aqueous solution. The catalysts with Si/Cr molarratios of 60 and 40 led to AO7 degradations higher than 70% after the Ti loading. Thus, it could be con-firmed that the direct incorporation method of Cr in the synthesis gel favored the high dispersion of theactive species of Cr6+making them accessible to interact with Ti species. Finally, the presence of Ti iscrucial to achieve a better use of the radiation due to the synergistic effect with the Cr species besidesavoiding the loss of this metal to the reaction medium.
publishDate 2013
dc.date.none.fl_str_mv 2013-10-02
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/11336/19848
Elías, Verónica Rita; Sabre, Ema Virginia; Winkler, Elin Lilian; Casuscelli, Sandra Graciela; Eimer, Griselda Alejandra; On the nature of Cr species on MCM-41 obtained by a one step method and their enhanced photocatalytic performance under visible radiation. New insights by a combined techniques approach; Elsevier Science; Applied Catalysis A: General; 467; 2-10-2013; 363-370
0926-860X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/19848
identifier_str_mv Elías, Verónica Rita; Sabre, Ema Virginia; Winkler, Elin Lilian; Casuscelli, Sandra Graciela; Eimer, Griselda Alejandra; On the nature of Cr species on MCM-41 obtained by a one step method and their enhanced photocatalytic performance under visible radiation. New insights by a combined techniques approach; Elsevier Science; Applied Catalysis A: General; 467; 2-10-2013; 363-370
0926-860X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcata.2013.07.059
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0926860X13004699
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
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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score 13.011256

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