Tungstophosphoric acid immobilized on ammonium Y and ZSM5 zeolites: Synthesis, characterization and catalytic evaluation
- Autores
- Leal Marchena, Candelaria; Frenzel, Romina Alejandra; Gómez, Silvina del Valle; Pierella, Liliana Beatriz; Pizzio, Luis Rene
- Año de publicación
- 2013
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- 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.
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; Argentina
Fil: 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; Argentina
Fil: 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; Argentina
Fil: 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; Argentina
Fil: 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; Argentina - Materia
-
Tungstophosphoric Acid
4-Chlorophenol
Photocatalytic Degradation
Zeolites - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/10986
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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 Técnicas2025-09-03T09:49:00Zoai: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:34982025-09-03 09:49:01.161CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
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 |
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 |
topic |
Tungstophosphoric Acid 4-Chlorophenol Photocatalytic Degradation Zeolites |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/2.4 https://purl.org/becyt/ford/2 |
dc.description.none.fl_txt_mv |
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. 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; Argentina Fil: 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; Argentina Fil: 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; Argentina Fil: 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; Argentina Fil: 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; Argentina |
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 |
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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1842268949262106624 |
score |
13.13397 |