Tungstophosphoric acid immobilized on ammonium Y and ZSM5 zeolites: Synthesis, characterization and catalytic evaluation

Two series of materials based on tungstophosphoric acid (TPA) immobilized on NH4Y and NH4ZSM5 zeolites were prepared by wet impregnation of the zeolite matrix with TPA aqueous solutions. Their concentration was varied in order to obtain TPA contents of 5, 10, 20 and 30% (w/w) in the solid. The mater...

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Detalhes bibliográficos
Autores: Leal Marchena, Candelaria, Frenzel, Romina Alejandra, Gómez, Silvina del Valle, Pierella, Liliana Beatriz, Pizzio, Luis Rene
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2013
País:Argentina
Recursos:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositório:CONICET Digital (CONICET)
Idioma:inglês
OAI Identifier:oai:ri.conicet.gov.ar:11336/10986
Acesso em linha:http://hdl.handle.net/11336/10986
Access Level:Acceso aberto
Palavra-chave:Tungstophosphoric Acid
4-Chlorophenol
Photocatalytic Degradation
Zeolites
https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
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oai_identifier_str oai:ri.conicet.gov.ar:11336/10986
network_acronym_str AR
network_name_str Argentina
repository_id_str
dc.title.none.fl_str_mv Tungstophosphoric acid immobilized on ammonium Y and ZSM5 zeolites: Synthesis, characterization and catalytic evaluation
title Tungstophosphoric acid immobilized on ammonium Y and ZSM5 zeolites: Synthesis, characterization and catalytic evaluation
spellingShingle Tungstophosphoric acid immobilized on ammonium Y and ZSM5 zeolites: Synthesis, characterization and catalytic evaluation
Leal Marchena, Candelaria
Tungstophosphoric Acid
4-Chlorophenol
Photocatalytic Degradation
Zeolites
https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
title_short Tungstophosphoric acid immobilized on ammonium Y and ZSM5 zeolites: Synthesis, characterization and catalytic evaluation
title_full Tungstophosphoric acid immobilized on ammonium Y and ZSM5 zeolites: Synthesis, characterization and catalytic evaluation
title_fullStr Tungstophosphoric acid immobilized on ammonium Y and ZSM5 zeolites: Synthesis, characterization and catalytic evaluation
title_full_unstemmed Tungstophosphoric acid immobilized on ammonium Y and ZSM5 zeolites: Synthesis, characterization and catalytic evaluation
title_sort Tungstophosphoric acid immobilized on ammonium Y and ZSM5 zeolites: Synthesis, characterization and catalytic evaluation
dc.creator.none.fl_str_mv Leal Marchena, Candelaria
Frenzel, Romina Alejandra
Gómez, Silvina del Valle
Pierella, Liliana Beatriz
Pizzio, Luis Rene
author Leal Marchena, Candelaria
author_facet Leal Marchena, Candelaria
Frenzel, Romina Alejandra
Gómez, Silvina del Valle
Pierella, Liliana Beatriz
Pizzio, Luis Rene
author_role author
author2 Frenzel, Romina Alejandra
Gómez, Silvina del Valle
Pierella, Liliana Beatriz
Pizzio, Luis Rene
author2_role author
author
author
author
dc.subject.none.fl_str_mv Tungstophosphoric Acid
4-Chlorophenol
Photocatalytic Degradation
Zeolites
https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
topic Tungstophosphoric Acid
4-Chlorophenol
Photocatalytic Degradation
Zeolites
https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
description Two series of materials based on tungstophosphoric acid (TPA) immobilized on NH4Y and NH4ZSM5 zeolites were prepared by wet impregnation of the zeolite matrix with TPA aqueous solutions. Their concentration was varied in order to obtain TPA contents of 5, 10, 20 and 30% (w/w) in the solid. The materials were characterized by N2 adsorption–desorption isotherms, XRD, FT-IR, 31P MASNMR, TGA-DSC, DRS–UV–vis, and the acidic behavior was studied by potentiometric titration with n-butylamine. The specific surface area (SBET) decreased when the TPA content was raised as a result of the zeolite pore blocking. The X-ray diffraction patterns of the solids modified with TPA only presented the characteristic peaks of NH4Y and NH4ZSM5 zeolites, and an additional set of peaks assigned to the presence of (NH4)3PW12O40. According to the Fourier transform infrared and 31P magic angle spinning-nuclear magnetic resonance spectra, the main species present in the samples (except for NH4YTPA05) is the [PW12O40]3− anion, which was partially transformed into [P2W21O71]6− anion during the synthesis and drying steps. The thermal stability of the NH4YTPA and NH4ZSM5TPA materials is similar to that of their parent zeolites. Moreover, the samples with the higher TPA content present band gap energy values similar to those reported for TiO2. The immobilization of TPA on NH4Y and NH4ZSM5 zeolites is a good method to obtain catalysts with high photocatalytic activity in the 4-chlorophenol degradation. They can be reused at least three times without an important decrease in the degradation degrees.
publishDate 2013
dc.date.none.fl_str_mv 2013-02
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/11336/10986
Leal Marchena, Candelaria; Frenzel, Romina Alejandra; Gómez, Silvina del Valle; Pierella, Liliana Beatriz; Pizzio, Luis Rene; Tungstophosphoric acid immobilized on ammonium Y and ZSM5 zeolites: Synthesis, characterization and catalytic evaluation; Elsevier Science; Applied Catalysis B: Environmental; 130-131; 2-2013; 187-196
0926-3373
url http://hdl.handle.net/11336/10986
identifier_str_mv Leal Marchena, Candelaria; Frenzel, Romina Alejandra; Gómez, Silvina del Valle; Pierella, Liliana Beatriz; Pizzio, Luis Rene; Tungstophosphoric acid immobilized on ammonium Y and ZSM5 zeolites: Synthesis, characterization and catalytic evaluation; Elsevier Science; Applied Catalysis B: Environmental; 130-131; 2-2013; 187-196
0926-3373
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://dx.doi.org/10.1016/j.apcatb.2012.11.002
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0926337312005127
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
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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_ 1799194971247476736
spelling Tungstophosphoric acid immobilized on ammonium Y and ZSM5 zeolites: Synthesis, characterization and catalytic evaluationLeal Marchena, CandelariaFrenzel, Romina AlejandraGómez, Silvina del VallePierella, Liliana BeatrizPizzio, Luis ReneTungstophosphoric Acid4-ChlorophenolPhotocatalytic DegradationZeoliteshttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2Two series of materials based on tungstophosphoric acid (TPA) immobilized on NH4Y and NH4ZSM5 zeolites were prepared by wet impregnation of the zeolite matrix with TPA aqueous solutions. Their concentration was varied in order to obtain TPA contents of 5, 10, 20 and 30% (w/w) in the solid. The materials were characterized by N2 adsorption–desorption isotherms, XRD, FT-IR, 31P MASNMR, TGA-DSC, DRS–UV–vis, and the acidic behavior was studied by potentiometric titration with n-butylamine. The specific surface area (SBET) decreased when the TPA content was raised as a result of the zeolite pore blocking. The X-ray diffraction patterns of the solids modified with TPA only presented the characteristic peaks of NH4Y and NH4ZSM5 zeolites, and an additional set of peaks assigned to the presence of (NH4)3PW12O40. According to the Fourier transform infrared and 31P magic angle spinning-nuclear magnetic resonance spectra, the main species present in the samples (except for NH4YTPA05) is the [PW12O40]3− anion, which was partially transformed into [P2W21O71]6− anion during the synthesis and drying steps. The thermal stability of the NH4YTPA and NH4ZSM5TPA materials is similar to that of their parent zeolites. Moreover, the samples with the higher TPA content present band gap energy values similar to those reported for TiO2. The immobilization of TPA on NH4Y and NH4ZSM5 zeolites is a good method to obtain catalysts with high photocatalytic activity in the 4-chlorophenol degradation. They can be reused at least three times without an important decrease in the degradation degrees.Fil: Leal Marchena, Candelaria. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Centro de Investigacion y Tecnologia Quimica; Argentina. Universidad Tecnologica Nacional. Facultad Regional Cordoba; ArgentinaFil: Frenzel, Romina Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Exactas; ArgentinaFil: Gómez, Silvina del Valle. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Centro de Investigacion y Tecnologia Quimica; Argentina. Universidad Tecnologica Nacional. Facultad Regional Cordoba; ArgentinaFil: Pierella, Liliana Beatriz. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Centro de Investigacion y Tecnologia Quimica; Argentina. Universidad Tecnologica Nacional. Facultad Regional Cordoba; ArgentinaFil: Pizzio, Luis Rene. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Exactas; ArgentinaElsevier Science2013-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/10986Leal Marchena, Candelaria; Frenzel, Romina Alejandra; Gómez, Silvina del Valle; Pierella, Liliana Beatriz; Pizzio, Luis Rene; Tungstophosphoric acid immobilized on ammonium Y and ZSM5 zeolites: Synthesis, characterization and catalytic evaluation; Elsevier Science; Applied Catalysis B: Environmental; 130-131; 2-2013; 187-1960926-3373enginfo:eu-repo/semantics/altIdentifier/url/http://dx.doi.org/10.1016/j.apcatb.2012.11.002info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0926337312005127info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T13:40:19Zoai:ri.conicet.gov.ar:11336/10986instacron: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:34982024-05-08 13:40:19.91CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
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