Caracterización superficial y textural de organoarcillas pilareadas con TiO2

Autores
Zacur Vercellone, Sofia Susana; Sham, Edgardo Ling; Farfan Torres, Elsa Monica
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
TiO2 organoclays are potential adsorbents for aqueous pollutants and subsequently they could favour the photocatalysis of them. For this reason, the study of their surface and textural characteristics is important for the improvement of those processes. In this work TiO2 pillared organoclays were studied. The surfactant (hexadecyltrimethilammonium bromide) was introduced post-pillaring or during the pillaring process. The effect of the use of different acids of hydrolysis and different surfactants ratios was investigated. The clays were characterized by thermogravimetric analysis, infrared spectroscopy and nitrogen sorptometry. It was found that the highest adsorption capacity post-pillaring of the surfactant is near to 0.5 times the CEC of the original pillared clay, independently of the amount of surfactant offered. An increment in the amount of the surfactant introduced only increased the ratio adsorbed as ionic pair. In these samples the CEC measured after the adsorption was between 0.26 and 0.47 times the original CEC. It was observed a decrease in the total pore volume and the BET surface for every sample. The surface hydrophobicity of the samples with post-pillaring adsorption was higher than in those with co-adsorption. In conclusion, it was demonstrated that the incorporation of surfactant modifies the surface and textural properties of the material in different extent in accordance with the incorporation stage and the amount of surfactant used.
Fil: Zacur Vercellone, Sofia Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones Para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones Para la Industria Química; Argentina
Fil: Sham, Edgardo Ling. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones Para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones Para la Industria Química; Argentina
Fil: Farfan Torres, Elsa Monica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones Para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones Para la Industria Química; Argentina
Materia
Organoclays
Pillared clays
Textural properties
Surface hydrophobicity
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/22130
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Caracterización superficial y textural de organoarcillas pilareadas con TiO2Surface and textural characterization of TiO2 pillared organoclaysZacur Vercellone, Sofia SusanaSham, Edgardo LingFarfan Torres, Elsa MonicaOrganoclaysPillared claysTextural propertiesSurface hydrophobicityhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2TiO2 organoclays are potential adsorbents for aqueous pollutants and subsequently they could favour the photocatalysis of them. For this reason, the study of their surface and textural characteristics is important for the improvement of those processes. In this work TiO2 pillared organoclays were studied. The surfactant (hexadecyltrimethilammonium bromide) was introduced post-pillaring or during the pillaring process. The effect of the use of different acids of hydrolysis and different surfactants ratios was investigated. The clays were characterized by thermogravimetric analysis, infrared spectroscopy and nitrogen sorptometry. It was found that the highest adsorption capacity post-pillaring of the surfactant is near to 0.5 times the CEC of the original pillared clay, independently of the amount of surfactant offered. An increment in the amount of the surfactant introduced only increased the ratio adsorbed as ionic pair. In these samples the CEC measured after the adsorption was between 0.26 and 0.47 times the original CEC. It was observed a decrease in the total pore volume and the BET surface for every sample. The surface hydrophobicity of the samples with post-pillaring adsorption was higher than in those with co-adsorption. In conclusion, it was demonstrated that the incorporation of surfactant modifies the surface and textural properties of the material in different extent in accordance with the incorporation stage and the amount of surfactant used.Fil: Zacur Vercellone, Sofia Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones Para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones Para la Industria Química; ArgentinaFil: Sham, Edgardo Ling. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones Para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones Para la Industria Química; ArgentinaFil: Farfan Torres, Elsa Monica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones Para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones Para la Industria Química; ArgentinaUniversidade Federal do Rio de Janeiro. Coordenação dos Programas de Pós-Graduação em Engenharia. Laboratório de Hidrogênio2015-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/22130Zacur Vercellone, Sofia Susana; Sham, Edgardo Ling; Farfan Torres, Elsa Monica; Caracterización superficial y textural de organoarcillas pilareadas con TiO2; Universidade Federal do Rio de Janeiro. Coordenação dos Programas de Pós-Graduação em Engenharia. Laboratório de Hidrogênio; Revista Matéria; 20; 3; 9-2015; 755-763; 116471517-7076CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1590/S1517-707620150003.0080info:eu-repo/semantics/altIdentifier/url/http://ref.scielo.org/wkzkj9info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:35:17Zoai:ri.conicet.gov.ar:11336/22130instacron: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:34982025-09-29 09:35:17.679CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Caracterización superficial y textural de organoarcillas pilareadas con TiO2
Surface and textural characterization of TiO2 pillared organoclays
title Caracterización superficial y textural de organoarcillas pilareadas con TiO2
spellingShingle Caracterización superficial y textural de organoarcillas pilareadas con TiO2
Zacur Vercellone, Sofia Susana
Organoclays
Pillared clays
Textural properties
Surface hydrophobicity
title_short Caracterización superficial y textural de organoarcillas pilareadas con TiO2
title_full Caracterización superficial y textural de organoarcillas pilareadas con TiO2
title_fullStr Caracterización superficial y textural de organoarcillas pilareadas con TiO2
title_full_unstemmed Caracterización superficial y textural de organoarcillas pilareadas con TiO2
title_sort Caracterización superficial y textural de organoarcillas pilareadas con TiO2
dc.creator.none.fl_str_mv Zacur Vercellone, Sofia Susana
Sham, Edgardo Ling
Farfan Torres, Elsa Monica
author Zacur Vercellone, Sofia Susana
author_facet Zacur Vercellone, Sofia Susana
Sham, Edgardo Ling
Farfan Torres, Elsa Monica
author_role author
author2 Sham, Edgardo Ling
Farfan Torres, Elsa Monica
author2_role author
author
dc.subject.none.fl_str_mv Organoclays
Pillared clays
Textural properties
Surface hydrophobicity
topic Organoclays
Pillared clays
Textural properties
Surface hydrophobicity
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv TiO2 organoclays are potential adsorbents for aqueous pollutants and subsequently they could favour the photocatalysis of them. For this reason, the study of their surface and textural characteristics is important for the improvement of those processes. In this work TiO2 pillared organoclays were studied. The surfactant (hexadecyltrimethilammonium bromide) was introduced post-pillaring or during the pillaring process. The effect of the use of different acids of hydrolysis and different surfactants ratios was investigated. The clays were characterized by thermogravimetric analysis, infrared spectroscopy and nitrogen sorptometry. It was found that the highest adsorption capacity post-pillaring of the surfactant is near to 0.5 times the CEC of the original pillared clay, independently of the amount of surfactant offered. An increment in the amount of the surfactant introduced only increased the ratio adsorbed as ionic pair. In these samples the CEC measured after the adsorption was between 0.26 and 0.47 times the original CEC. It was observed a decrease in the total pore volume and the BET surface for every sample. The surface hydrophobicity of the samples with post-pillaring adsorption was higher than in those with co-adsorption. In conclusion, it was demonstrated that the incorporation of surfactant modifies the surface and textural properties of the material in different extent in accordance with the incorporation stage and the amount of surfactant used.
Fil: Zacur Vercellone, Sofia Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones Para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones Para la Industria Química; Argentina
Fil: Sham, Edgardo Ling. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones Para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones Para la Industria Química; Argentina
Fil: Farfan Torres, Elsa Monica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones Para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones Para la Industria Química; Argentina
description TiO2 organoclays are potential adsorbents for aqueous pollutants and subsequently they could favour the photocatalysis of them. For this reason, the study of their surface and textural characteristics is important for the improvement of those processes. In this work TiO2 pillared organoclays were studied. The surfactant (hexadecyltrimethilammonium bromide) was introduced post-pillaring or during the pillaring process. The effect of the use of different acids of hydrolysis and different surfactants ratios was investigated. The clays were characterized by thermogravimetric analysis, infrared spectroscopy and nitrogen sorptometry. It was found that the highest adsorption capacity post-pillaring of the surfactant is near to 0.5 times the CEC of the original pillared clay, independently of the amount of surfactant offered. An increment in the amount of the surfactant introduced only increased the ratio adsorbed as ionic pair. In these samples the CEC measured after the adsorption was between 0.26 and 0.47 times the original CEC. It was observed a decrease in the total pore volume and the BET surface for every sample. The surface hydrophobicity of the samples with post-pillaring adsorption was higher than in those with co-adsorption. In conclusion, it was demonstrated that the incorporation of surfactant modifies the surface and textural properties of the material in different extent in accordance with the incorporation stage and the amount of surfactant used.
publishDate 2015
dc.date.none.fl_str_mv 2015-09
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/11336/22130
Zacur Vercellone, Sofia Susana; Sham, Edgardo Ling; Farfan Torres, Elsa Monica; Caracterización superficial y textural de organoarcillas pilareadas con TiO2; Universidade Federal do Rio de Janeiro. Coordenação dos Programas de Pós-Graduação em Engenharia. Laboratório de Hidrogênio; Revista Matéria; 20; 3; 9-2015; 755-763; 11647
1517-7076
CONICET Digital
CONICET
url http://hdl.handle.net/11336/22130
identifier_str_mv Zacur Vercellone, Sofia Susana; Sham, Edgardo Ling; Farfan Torres, Elsa Monica; Caracterización superficial y textural de organoarcillas pilareadas con TiO2; Universidade Federal do Rio de Janeiro. Coordenação dos Programas de Pós-Graduação em Engenharia. Laboratório de Hidrogênio; Revista Matéria; 20; 3; 9-2015; 755-763; 11647
1517-7076
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1590/S1517-707620150003.0080
info:eu-repo/semantics/altIdentifier/url/http://ref.scielo.org/wkzkj9
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Universidade Federal do Rio de Janeiro. Coordenação dos Programas de Pós-Graduação em Engenharia. Laboratório de Hidrogênio
publisher.none.fl_str_mv Universidade Federal do Rio de Janeiro. Coordenação dos Programas de Pós-Graduação em Engenharia. Laboratório de Hidrogênio
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 13.070432

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