Novel (NH<SUB>4</SUB>)<SUB>4</SUB>[NiMo<SUB>6</SUB>O<SUB>24</SUB>H<SUB>6</SUB>]·<SUB>5</SUB>H<SUB>2</SUB>O – TiO<SUB>2</SUB> composite system: Photooxidation of toluene under UV an...

Autores
Muñoz Batista, Mario J.; Bertolini, Guillermo Ramón; Cabello, Carmen Inés; Luque, Rafael; Rodríguez Castellón, Enrique; Kubacka, Ana; Fernández García, Marcos
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A series of composite materials based on titania and growing quantities of the (NH4)4[NiMo6O24H6]·5H2O heteropolyacid (NiMo6 HPA) was tested in the gas-phase toluene photo-oxidation reaction. Materials were characterized with the help of chemical analysis, X-ray diffraction, porosimetry, electron transmission and scanning microscopies, as well as X-ray photoelectron and UV–visible diffuse-reflectance spectroscopies. Photoactivity performance was assessed under UV and sunlight-type illumination conditions through the calculation of the true quantum efficiency to measure activity as well as the analysis of the selectivity of the reaction. The composite system having a 3 wt. % of the NiMo6 component presents improved performance with respect to well defined titania references (parent nanosized anatase or P25) under all illumination conditions tested. The characterization of the solids indicates that the NiMo6 component supported on titania suffers a significant modification of its physico-chemical properties as a function of the loading of the composite system. Such modification appears as a consequence of the interface interaction between the components of the composite system. An electron paramagnetic resonance study of the radical species formed under illumination shows that charge handling through the NiMo6 – TiO2 interface controls the photo-catalytic properties.
Centro de Investigación y Desarrollo en Ciencias Aplicadas
Materia
Química
NiMo Anderson
Anatase
UV
Sunlight
Toluene
Quantum efficiency
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:10915/113454
Acceder
id SEDICI_772b4ed98877b64cd1539d8784042279
oai_identifier_str oai:sedici.unlp.edu.ar:10915/113454
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Novel (NH<SUB>4</SUB>)<SUB>4</SUB>[NiMo<SUB>6</SUB>O<SUB>24</SUB>H<SUB>6</SUB>]·<SUB>5</SUB>H<SUB>2</SUB>O – TiO<SUB>2</SUB> composite system: Photooxidation of toluene under UV and sunlight-type illuminationMuñoz Batista, Mario J.Bertolini, Guillermo RamónCabello, Carmen InésLuque, RafaelRodríguez Castellón, EnriqueKubacka, AnaFernández García, MarcosQuímicaNiMo AndersonAnataseUVSunlightTolueneQuantum efficiencyA series of composite materials based on titania and growing quantities of the (NH4)4[NiMo6O24H6]·5H2O heteropolyacid (NiMo6 HPA) was tested in the gas-phase toluene photo-oxidation reaction. Materials were characterized with the help of chemical analysis, X-ray diffraction, porosimetry, electron transmission and scanning microscopies, as well as X-ray photoelectron and UV–visible diffuse-reflectance spectroscopies. Photoactivity performance was assessed under UV and sunlight-type illumination conditions through the calculation of the true quantum efficiency to measure activity as well as the analysis of the selectivity of the reaction. The composite system having a 3 wt. % of the NiMo6 component presents improved performance with respect to well defined titania references (parent nanosized anatase or P25) under all illumination conditions tested. The characterization of the solids indicates that the NiMo6 component supported on titania suffers a significant modification of its physico-chemical properties as a function of the loading of the composite system. Such modification appears as a consequence of the interface interaction between the components of the composite system. An electron paramagnetic resonance study of the radical species formed under illumination shows that charge handling through the NiMo6 – TiO2 interface controls the photo-catalytic properties.Centro de Investigación y Desarrollo en Ciencias Aplicadas2018info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf381-392http://sedici.unlp.edu.ar/handle/10915/113454enginfo:eu-repo/semantics/altIdentifier/issn/0926-3373info:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcatb.2018.07.041info: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:UNLP2025-09-03T10:58:36Zoai:sedici.unlp.edu.ar:10915/113454Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 10:58:36.903SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Novel (NH<SUB>4</SUB>)<SUB>4</SUB>[NiMo<SUB>6</SUB>O<SUB>24</SUB>H<SUB>6</SUB>]·<SUB>5</SUB>H<SUB>2</SUB>O – TiO<SUB>2</SUB> composite system: Photooxidation of toluene under UV and sunlight-type illumination
title Novel (NH<SUB>4</SUB>)<SUB>4</SUB>[NiMo<SUB>6</SUB>O<SUB>24</SUB>H<SUB>6</SUB>]·<SUB>5</SUB>H<SUB>2</SUB>O – TiO<SUB>2</SUB> composite system: Photooxidation of toluene under UV and sunlight-type illumination
spellingShingle Novel (NH<SUB>4</SUB>)<SUB>4</SUB>[NiMo<SUB>6</SUB>O<SUB>24</SUB>H<SUB>6</SUB>]·<SUB>5</SUB>H<SUB>2</SUB>O – TiO<SUB>2</SUB> composite system: Photooxidation of toluene under UV and sunlight-type illumination
Muñoz Batista, Mario J.
Química
NiMo Anderson
Anatase
UV
Sunlight
Toluene
Quantum efficiency
title_short Novel (NH<SUB>4</SUB>)<SUB>4</SUB>[NiMo<SUB>6</SUB>O<SUB>24</SUB>H<SUB>6</SUB>]·<SUB>5</SUB>H<SUB>2</SUB>O – TiO<SUB>2</SUB> composite system: Photooxidation of toluene under UV and sunlight-type illumination
title_full Novel (NH<SUB>4</SUB>)<SUB>4</SUB>[NiMo<SUB>6</SUB>O<SUB>24</SUB>H<SUB>6</SUB>]·<SUB>5</SUB>H<SUB>2</SUB>O – TiO<SUB>2</SUB> composite system: Photooxidation of toluene under UV and sunlight-type illumination
title_fullStr Novel (NH<SUB>4</SUB>)<SUB>4</SUB>[NiMo<SUB>6</SUB>O<SUB>24</SUB>H<SUB>6</SUB>]·<SUB>5</SUB>H<SUB>2</SUB>O – TiO<SUB>2</SUB> composite system: Photooxidation of toluene under UV and sunlight-type illumination
title_full_unstemmed Novel (NH<SUB>4</SUB>)<SUB>4</SUB>[NiMo<SUB>6</SUB>O<SUB>24</SUB>H<SUB>6</SUB>]·<SUB>5</SUB>H<SUB>2</SUB>O – TiO<SUB>2</SUB> composite system: Photooxidation of toluene under UV and sunlight-type illumination
title_sort Novel (NH<SUB>4</SUB>)<SUB>4</SUB>[NiMo<SUB>6</SUB>O<SUB>24</SUB>H<SUB>6</SUB>]·<SUB>5</SUB>H<SUB>2</SUB>O – TiO<SUB>2</SUB> composite system: Photooxidation of toluene under UV and sunlight-type illumination
dc.creator.none.fl_str_mv Muñoz Batista, Mario J.
Bertolini, Guillermo Ramón
Cabello, Carmen Inés
Luque, Rafael
Rodríguez Castellón, Enrique
Kubacka, Ana
Fernández García, Marcos
author Muñoz Batista, Mario J.
author_facet Muñoz Batista, Mario J.
Bertolini, Guillermo Ramón
Cabello, Carmen Inés
Luque, Rafael
Rodríguez Castellón, Enrique
Kubacka, Ana
Fernández García, Marcos
author_role author
author2 Bertolini, Guillermo Ramón
Cabello, Carmen Inés
Luque, Rafael
Rodríguez Castellón, Enrique
Kubacka, Ana
Fernández García, Marcos
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Química
NiMo Anderson
Anatase
UV
Sunlight
Toluene
Quantum efficiency
topic Química
NiMo Anderson
Anatase
UV
Sunlight
Toluene
Quantum efficiency
dc.description.none.fl_txt_mv A series of composite materials based on titania and growing quantities of the (NH4)4[NiMo6O24H6]·5H2O heteropolyacid (NiMo6 HPA) was tested in the gas-phase toluene photo-oxidation reaction. Materials were characterized with the help of chemical analysis, X-ray diffraction, porosimetry, electron transmission and scanning microscopies, as well as X-ray photoelectron and UV–visible diffuse-reflectance spectroscopies. Photoactivity performance was assessed under UV and sunlight-type illumination conditions through the calculation of the true quantum efficiency to measure activity as well as the analysis of the selectivity of the reaction. The composite system having a 3 wt. % of the NiMo6 component presents improved performance with respect to well defined titania references (parent nanosized anatase or P25) under all illumination conditions tested. The characterization of the solids indicates that the NiMo6 component supported on titania suffers a significant modification of its physico-chemical properties as a function of the loading of the composite system. Such modification appears as a consequence of the interface interaction between the components of the composite system. An electron paramagnetic resonance study of the radical species formed under illumination shows that charge handling through the NiMo6 – TiO2 interface controls the photo-catalytic properties.
Centro de Investigación y Desarrollo en Ciencias Aplicadas
description A series of composite materials based on titania and growing quantities of the (NH4)4[NiMo6O24H6]·5H2O heteropolyacid (NiMo6 HPA) was tested in the gas-phase toluene photo-oxidation reaction. Materials were characterized with the help of chemical analysis, X-ray diffraction, porosimetry, electron transmission and scanning microscopies, as well as X-ray photoelectron and UV–visible diffuse-reflectance spectroscopies. Photoactivity performance was assessed under UV and sunlight-type illumination conditions through the calculation of the true quantum efficiency to measure activity as well as the analysis of the selectivity of the reaction. The composite system having a 3 wt. % of the NiMo6 component presents improved performance with respect to well defined titania references (parent nanosized anatase or P25) under all illumination conditions tested. The characterization of the solids indicates that the NiMo6 component supported on titania suffers a significant modification of its physico-chemical properties as a function of the loading of the composite system. Such modification appears as a consequence of the interface interaction between the components of the composite system. An electron paramagnetic resonance study of the radical species formed under illumination shows that charge handling through the NiMo6 – TiO2 interface controls the photo-catalytic properties.
publishDate 2018
dc.date.none.fl_str_mv 2018
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/10915/113454
url http://sedici.unlp.edu.ar/handle/10915/113454
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0926-3373
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcatb.2018.07.041
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
381-392
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 13.13397

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