Preparation and characterization of TiO2/HZSM-11 zeolite forphotodegradation of dichlorvos in aqueous solution

Autores
Gómez, Silvina del Valle; Leal Marchena, Candelaria; Pizzio, Luis Rene; Pierella, Liliana Beatriz
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The TiO2/HZSM-11 materials were synthesized using titanium isopropoxide as a TiO2precursor andHZSM-11 a medium pore size zeolite with high thermal and chemical resistance as support. The amountof titanium isopropoxide was varied in order to obtain TiO2concentrations of 3, 10, 20, 30 and 50 wt%in the final material. They were characterized by a series of complementary techniques: X-ray diffrac-tion (XRD), ultraviolet?visible diffuse reflectance spectroscopy (DRS), transmittance Fourier transforminfrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The surface area of the TiO2/HZSM-11 samples decreased with the increment of TiO2loading. As result of the increment of the calcinationtemperature from 450 to 800◦C an increase in the size of the anatase crystals was observed. However,the X-ray diffraction patterns of the solids only presented the characteristic peaks of the anatase phase.The catalytic activity of the materials in the photodegradation of Dichlorvos (DDVP) depended on theTiO2amount the thermal treatment temperature. The sample containing 30% TiO2calcined at 450◦Cshowed the best catalytic performance and it can be reused without noticeable activity loss during atleast four cycles. The catalytic performance was similar to that of the P25 Degussa used as a referencebut its separation, recovery and reuse was easier.
Fil: Gómez, Silvina del Valle. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Centro de Investigacion y Tecnologia Quimica; Argentina
Fil: Leal Marchena, Candelaria. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Centro de Investigacion y Tecnologia Quimica; 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
Fil: Pierella, Liliana Beatriz. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Centro de Investigacion y Tecnologia Quimica; Argentina
Materia
Dichlorvos
Photodegradation
Tio2/Zeolite
Characterization
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:11336/7397
Acceder
id CONICETDig_fd8c78feabecaa19a09eed37132fddf3
oai_identifier_str oai:ri.conicet.gov.ar:11336/7397
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Preparation and characterization of TiO2/HZSM-11 zeolite forphotodegradation of dichlorvos in aqueous solutionGómez, Silvina del ValleLeal Marchena, CandelariaPizzio, Luis RenePierella, Liliana BeatrizDichlorvosPhotodegradationTio2/ZeoliteCharacterizationhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2The TiO2/HZSM-11 materials were synthesized using titanium isopropoxide as a TiO2precursor andHZSM-11 a medium pore size zeolite with high thermal and chemical resistance as support. The amountof titanium isopropoxide was varied in order to obtain TiO2concentrations of 3, 10, 20, 30 and 50 wt%in the final material. They were characterized by a series of complementary techniques: X-ray diffrac-tion (XRD), ultraviolet?visible diffuse reflectance spectroscopy (DRS), transmittance Fourier transforminfrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The surface area of the TiO2/HZSM-11 samples decreased with the increment of TiO2loading. As result of the increment of the calcinationtemperature from 450 to 800◦C an increase in the size of the anatase crystals was observed. However,the X-ray diffraction patterns of the solids only presented the characteristic peaks of the anatase phase.The catalytic activity of the materials in the photodegradation of Dichlorvos (DDVP) depended on theTiO2amount the thermal treatment temperature. The sample containing 30% TiO2calcined at 450◦Cshowed the best catalytic performance and it can be reused without noticeable activity loss during atleast four cycles. The catalytic performance was similar to that of the P25 Degussa used as a referencebut its separation, recovery and reuse was easier.Fil: Gómez, Silvina del Valle. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Centro de Investigacion y Tecnologia Quimica; ArgentinaFil: Leal Marchena, Candelaria. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Centro de Investigacion y Tecnologia Quimica; ArgentinaFil: Pizzio, Luis Rene. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas; ArgentinaFil: Pierella, Liliana Beatriz. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Centro de Investigacion y Tecnologia Quimica; ArgentinaElsevier2013-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/7397Gómez, Silvina del Valle; Leal Marchena, Candelaria; Pizzio, Luis Rene; Pierella, Liliana Beatriz; Preparation and characterization of TiO2/HZSM-11 zeolite forphotodegradation of dichlorvos in aqueous solution; Elsevier; Journal of Hazardous Materials; 258-259; 4-2013; 19-260304-3894enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0304389413002859info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jhazmat.2013.04.030info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:08:35Zoai:ri.conicet.gov.ar:11336/7397instacron: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 10:08:36.296CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Preparation and characterization of TiO2/HZSM-11 zeolite forphotodegradation of dichlorvos in aqueous solution
title Preparation and characterization of TiO2/HZSM-11 zeolite forphotodegradation of dichlorvos in aqueous solution
spellingShingle Preparation and characterization of TiO2/HZSM-11 zeolite forphotodegradation of dichlorvos in aqueous solution
Gómez, Silvina del Valle
Dichlorvos
Photodegradation
Tio2/Zeolite
Characterization
title_short Preparation and characterization of TiO2/HZSM-11 zeolite forphotodegradation of dichlorvos in aqueous solution
title_full Preparation and characterization of TiO2/HZSM-11 zeolite forphotodegradation of dichlorvos in aqueous solution
title_fullStr Preparation and characterization of TiO2/HZSM-11 zeolite forphotodegradation of dichlorvos in aqueous solution
title_full_unstemmed Preparation and characterization of TiO2/HZSM-11 zeolite forphotodegradation of dichlorvos in aqueous solution
title_sort Preparation and characterization of TiO2/HZSM-11 zeolite forphotodegradation of dichlorvos in aqueous solution
dc.creator.none.fl_str_mv Gómez, Silvina del Valle
Leal Marchena, Candelaria
Pizzio, Luis Rene
Pierella, Liliana Beatriz
author Gómez, Silvina del Valle
author_facet Gómez, Silvina del Valle
Leal Marchena, Candelaria
Pizzio, Luis Rene
Pierella, Liliana Beatriz
author_role author
author2 Leal Marchena, Candelaria
Pizzio, Luis Rene
Pierella, Liliana Beatriz
author2_role author
author
author
dc.subject.none.fl_str_mv Dichlorvos
Photodegradation
Tio2/Zeolite
Characterization
topic Dichlorvos
Photodegradation
Tio2/Zeolite
Characterization
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The TiO2/HZSM-11 materials were synthesized using titanium isopropoxide as a TiO2precursor andHZSM-11 a medium pore size zeolite with high thermal and chemical resistance as support. The amountof titanium isopropoxide was varied in order to obtain TiO2concentrations of 3, 10, 20, 30 and 50 wt%in the final material. They were characterized by a series of complementary techniques: X-ray diffrac-tion (XRD), ultraviolet?visible diffuse reflectance spectroscopy (DRS), transmittance Fourier transforminfrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The surface area of the TiO2/HZSM-11 samples decreased with the increment of TiO2loading. As result of the increment of the calcinationtemperature from 450 to 800◦C an increase in the size of the anatase crystals was observed. However,the X-ray diffraction patterns of the solids only presented the characteristic peaks of the anatase phase.The catalytic activity of the materials in the photodegradation of Dichlorvos (DDVP) depended on theTiO2amount the thermal treatment temperature. The sample containing 30% TiO2calcined at 450◦Cshowed the best catalytic performance and it can be reused without noticeable activity loss during atleast four cycles. The catalytic performance was similar to that of the P25 Degussa used as a referencebut its separation, recovery and reuse was easier.
Fil: Gómez, Silvina del Valle. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Centro de Investigacion y Tecnologia Quimica; Argentina
Fil: Leal Marchena, Candelaria. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Centro de Investigacion y Tecnologia Quimica; 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
Fil: Pierella, Liliana Beatriz. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Centro de Investigacion y Tecnologia Quimica; Argentina
description The TiO2/HZSM-11 materials were synthesized using titanium isopropoxide as a TiO2precursor andHZSM-11 a medium pore size zeolite with high thermal and chemical resistance as support. The amountof titanium isopropoxide was varied in order to obtain TiO2concentrations of 3, 10, 20, 30 and 50 wt%in the final material. They were characterized by a series of complementary techniques: X-ray diffrac-tion (XRD), ultraviolet?visible diffuse reflectance spectroscopy (DRS), transmittance Fourier transforminfrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The surface area of the TiO2/HZSM-11 samples decreased with the increment of TiO2loading. As result of the increment of the calcinationtemperature from 450 to 800◦C an increase in the size of the anatase crystals was observed. However,the X-ray diffraction patterns of the solids only presented the characteristic peaks of the anatase phase.The catalytic activity of the materials in the photodegradation of Dichlorvos (DDVP) depended on theTiO2amount the thermal treatment temperature. The sample containing 30% TiO2calcined at 450◦Cshowed the best catalytic performance and it can be reused without noticeable activity loss during atleast four cycles. The catalytic performance was similar to that of the P25 Degussa used as a referencebut its separation, recovery and reuse was easier.
publishDate 2013
dc.date.none.fl_str_mv 2013-04
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/11336/7397
Gómez, Silvina del Valle; Leal Marchena, Candelaria; Pizzio, Luis Rene; Pierella, Liliana Beatriz; Preparation and characterization of TiO2/HZSM-11 zeolite forphotodegradation of dichlorvos in aqueous solution; Elsevier; Journal of Hazardous Materials; 258-259; 4-2013; 19-26
0304-3894
url http://hdl.handle.net/11336/7397
identifier_str_mv Gómez, Silvina del Valle; Leal Marchena, Candelaria; Pizzio, Luis Rene; Pierella, Liliana Beatriz; Preparation and characterization of TiO2/HZSM-11 zeolite forphotodegradation of dichlorvos in aqueous solution; Elsevier; Journal of Hazardous Materials; 258-259; 4-2013; 19-26
0304-3894
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0304389413002859
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jhazmat.2013.04.030
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
application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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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