New synthesis of SBA-3 mesoporous material using silica gel as silica source

Autores
Martínez, María Laura; Ponte, María Virginia; Anunziata, Oscar Alfredo; Beltramone, Andrea Raquel
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
One of the main areas of interest in materials chemistry is the synthesis of mesoporous molecular sieves with highly controllable morphologies for the purpose of providing catalytic, separation, and adsorption applications to industry. The main drawback is that the expensive source of silicon as alkoxide (Si(OEt)4 or Si(OMe)4) prevents any application where large amounts of materials are required [1–2]. Ordered mesoporous silica material has been synthesized successfully by using cetyltrimethylamonium bromide (CTAB) as a structure-directing agent and inexpensive silica gel dissolved in a solution of sodium hydroxide, as the silica source without any additives. The synthesis is performed at room temperature in the presence of hydrochloric acid. The analysis of X ray diffraction shows that the resultant mesoporous materials possess an hexagonal mesostructure. We studied the effect of the initial NaOH concentration and the synthesis time on the structure and morphology of mesoporous silica SBA-3. The crystal size and structural order of the samples were found to be greatly affected by NaOH variations. The results suggest that, if the NaOH concentration increases reaching values higher than 1 M, the SBA-3 is not generated, since there is no precipitation or formation of silica gel in the reaction, appearing the corresponding disordered or amorphous silica. Whereas, when time increase from 45 min to 120 min, with molar concentration of NaOH of 0.75, the material obtained show a hexagonal mesostruture observed in the XRD pattern.
Fil: Martínez, María Laura. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación en Nanociencia y Nanotecnología; Argentina.
Fil: Ponte, María Virginia. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación en Nanociencia y Nanotecnología; Argentina.
Fil: Anunziata, Oscar Alfredo. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación en Nanociencia y Nanotecnología; Argentina.
Fil: Beltramone, Andrea Raquel. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación en Nanociencia y Nanotecnología; Argentina.
Peer Reviewed
Materia
Mesoporous materials
SBA-3
silica gel
Nivel de accesibilidad
acceso abierto
Condiciones de uso
2024-03-25T22:29:13Z
Repositorio
Repositorio Institucional Abierto (UTN)
Institución
Universidad Tecnológica Nacional
OAI Identificador
oai:ria.utn.edu.ar:20.500.12272/10075
Acceder
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network_acronym_str RIAUTN
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network_name_str Repositorio Institucional Abierto (UTN)
spelling New synthesis of SBA-3 mesoporous material using silica gel as silica sourceMartínez, María LauraPonte, María VirginiaAnunziata, Oscar AlfredoBeltramone, Andrea RaquelMesoporous materialsSBA-3silica gelOne of the main areas of interest in materials chemistry is the synthesis of mesoporous molecular sieves with highly controllable morphologies for the purpose of providing catalytic, separation, and adsorption applications to industry. The main drawback is that the expensive source of silicon as alkoxide (Si(OEt)4 or Si(OMe)4) prevents any application where large amounts of materials are required [1–2]. Ordered mesoporous silica material has been synthesized successfully by using cetyltrimethylamonium bromide (CTAB) as a structure-directing agent and inexpensive silica gel dissolved in a solution of sodium hydroxide, as the silica source without any additives. The synthesis is performed at room temperature in the presence of hydrochloric acid. The analysis of X ray diffraction shows that the resultant mesoporous materials possess an hexagonal mesostructure. We studied the effect of the initial NaOH concentration and the synthesis time on the structure and morphology of mesoporous silica SBA-3. The crystal size and structural order of the samples were found to be greatly affected by NaOH variations. The results suggest that, if the NaOH concentration increases reaching values higher than 1 M, the SBA-3 is not generated, since there is no precipitation or formation of silica gel in the reaction, appearing the corresponding disordered or amorphous silica. Whereas, when time increase from 45 min to 120 min, with molar concentration of NaOH of 0.75, the material obtained show a hexagonal mesostruture observed in the XRD pattern.Fil: Martínez, María Laura. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación en Nanociencia y Nanotecnología; Argentina.Fil: Ponte, María Virginia. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación en Nanociencia y Nanotecnología; Argentina.Fil: Anunziata, Oscar Alfredo. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación en Nanociencia y Nanotecnología; Argentina.Fil: Beltramone, Andrea Raquel. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación en Nanociencia y Nanotecnología; Argentina.Peer Reviewed2024-03-25T22:29:13Z2024-03-25T22:29:13Z2014info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articulopdfapplication/pdfhttp://hdl.handle.net/20.500.12272/10075-enginfo:eu-repo/semantics/openAccess2024-03-25T22:29:13Zhttp://creativecommons.org/licenses/by-nc-nd/4.0/Attribution-NonCommercial-NoDerivatives 4.0 InternacionalBeltramone, Andrea Raquel_X_Atribución (Attribution): En cualquier explotación de la obra autorizada por la licencia será necesario reconocer la autoría (obligatoria en todos los casos). _X_No comercial (Non Commercial): La explotación de la obra queda limitada a usos no comerciales. _X_Sin obras derivadas (No Derivate Works): La autorización para explotar la obra no incluye la posibilidad de crear una obra derivada (traducciones, adaptaciones, etc.). _X_Compartir igual (Share Alike): La explotación autorizada incluye la creación de obras derivadas siempre que se mantenga la misma licencia al ser divulgadas.reponame:Repositorio Institucional Abierto (UTN)instname:Universidad Tecnológica Nacional2026-09-24T12:48:13Zoai:ria.utn.edu.ar:20.500.12272/10075instacron:UTNInstitucionalhttp://ria.utn.edu.ar/Universidad públicaNo correspondehttp://ria.utn.edu.ar/oaigestionria@rec.utn.edu.ar; fsuarez@rec.utn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:a2026-09-24 12:48:14.506Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacionalfalse
dc.title.none.fl_str_mv New synthesis of SBA-3 mesoporous material using silica gel as silica source
title New synthesis of SBA-3 mesoporous material using silica gel as silica source
spellingShingle New synthesis of SBA-3 mesoporous material using silica gel as silica source
Martínez, María Laura
Mesoporous materials
SBA-3
silica gel
title_short New synthesis of SBA-3 mesoporous material using silica gel as silica source
title_full New synthesis of SBA-3 mesoporous material using silica gel as silica source
title_fullStr New synthesis of SBA-3 mesoporous material using silica gel as silica source
title_full_unstemmed New synthesis of SBA-3 mesoporous material using silica gel as silica source
title_sort New synthesis of SBA-3 mesoporous material using silica gel as silica source
dc.creator.none.fl_str_mv Martínez, María Laura
Ponte, María Virginia
Anunziata, Oscar Alfredo
Beltramone, Andrea Raquel
author Martínez, María Laura
author_facet Martínez, María Laura
Ponte, María Virginia
Anunziata, Oscar Alfredo
Beltramone, Andrea Raquel
author_role author
author2 Ponte, María Virginia
Anunziata, Oscar Alfredo
Beltramone, Andrea Raquel
author2_role author
author
author
dc.subject.none.fl_str_mv Mesoporous materials
SBA-3
silica gel
topic Mesoporous materials
SBA-3
silica gel
dc.description.none.fl_txt_mv One of the main areas of interest in materials chemistry is the synthesis of mesoporous molecular sieves with highly controllable morphologies for the purpose of providing catalytic, separation, and adsorption applications to industry. The main drawback is that the expensive source of silicon as alkoxide (Si(OEt)4 or Si(OMe)4) prevents any application where large amounts of materials are required [1–2]. Ordered mesoporous silica material has been synthesized successfully by using cetyltrimethylamonium bromide (CTAB) as a structure-directing agent and inexpensive silica gel dissolved in a solution of sodium hydroxide, as the silica source without any additives. The synthesis is performed at room temperature in the presence of hydrochloric acid. The analysis of X ray diffraction shows that the resultant mesoporous materials possess an hexagonal mesostructure. We studied the effect of the initial NaOH concentration and the synthesis time on the structure and morphology of mesoporous silica SBA-3. The crystal size and structural order of the samples were found to be greatly affected by NaOH variations. The results suggest that, if the NaOH concentration increases reaching values higher than 1 M, the SBA-3 is not generated, since there is no precipitation or formation of silica gel in the reaction, appearing the corresponding disordered or amorphous silica. Whereas, when time increase from 45 min to 120 min, with molar concentration of NaOH of 0.75, the material obtained show a hexagonal mesostruture observed in the XRD pattern.
Fil: Martínez, María Laura. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación en Nanociencia y Nanotecnología; Argentina.
Fil: Ponte, María Virginia. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación en Nanociencia y Nanotecnología; Argentina.
Fil: Anunziata, Oscar Alfredo. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación en Nanociencia y Nanotecnología; Argentina.
Fil: Beltramone, Andrea Raquel. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación en Nanociencia y Nanotecnología; Argentina.
Peer Reviewed
description One of the main areas of interest in materials chemistry is the synthesis of mesoporous molecular sieves with highly controllable morphologies for the purpose of providing catalytic, separation, and adsorption applications to industry. The main drawback is that the expensive source of silicon as alkoxide (Si(OEt)4 or Si(OMe)4) prevents any application where large amounts of materials are required [1–2]. Ordered mesoporous silica material has been synthesized successfully by using cetyltrimethylamonium bromide (CTAB) as a structure-directing agent and inexpensive silica gel dissolved in a solution of sodium hydroxide, as the silica source without any additives. The synthesis is performed at room temperature in the presence of hydrochloric acid. The analysis of X ray diffraction shows that the resultant mesoporous materials possess an hexagonal mesostructure. We studied the effect of the initial NaOH concentration and the synthesis time on the structure and morphology of mesoporous silica SBA-3. The crystal size and structural order of the samples were found to be greatly affected by NaOH variations. The results suggest that, if the NaOH concentration increases reaching values higher than 1 M, the SBA-3 is not generated, since there is no precipitation or formation of silica gel in the reaction, appearing the corresponding disordered or amorphous silica. Whereas, when time increase from 45 min to 120 min, with molar concentration of NaOH of 0.75, the material obtained show a hexagonal mesostruture observed in the XRD pattern.
publishDate 2014
dc.date.none.fl_str_mv 2014
2024-03-25T22:29:13Z
2024-03-25T22:29:13Z
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/20.500.12272/10075
-
url http://hdl.handle.net/20.500.12272/10075
identifier_str_mv -
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
2024-03-25T22:29:13Z
http://creativecommons.org/licenses/by-nc-nd/4.0/
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Beltramone, Andrea Raquel
_X_Atribución (Attribution): En cualquier explotación de la obra autorizada por la licencia será necesario reconocer la autoría (obligatoria en todos los casos). _X_No comercial (Non Commercial): La explotación de la obra queda limitada a usos no comerciales. _X_Sin obras derivadas (No Derivate Works): La autorización para explotar la obra no incluye la posibilidad de crear una obra derivada (traducciones, adaptaciones, etc.). _X_Compartir igual (Share Alike): La explotación autorizada incluye la creación de obras derivadas siempre que se mantenga la misma licencia al ser divulgadas.
eu_rights_str_mv openAccess
rights_invalid_str_mv 2024-03-25T22:29:13Z
http://creativecommons.org/licenses/by-nc-nd/4.0/
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Beltramone, Andrea Raquel
_X_Atribución (Attribution): En cualquier explotación de la obra autorizada por la licencia será necesario reconocer la autoría (obligatoria en todos los casos). _X_No comercial (Non Commercial): La explotación de la obra queda limitada a usos no comerciales. _X_Sin obras derivadas (No Derivate Works): La autorización para explotar la obra no incluye la posibilidad de crear una obra derivada (traducciones, adaptaciones, etc.). _X_Compartir igual (Share Alike): La explotación autorizada incluye la creación de obras derivadas siempre que se mantenga la misma licencia al ser divulgadas.
dc.format.none.fl_str_mv pdf
application/pdf
dc.source.none.fl_str_mv reponame:Repositorio Institucional Abierto (UTN)
instname:Universidad Tecnológica Nacional
reponame_str Repositorio Institucional Abierto (UTN)
collection Repositorio Institucional Abierto (UTN)
instname_str Universidad Tecnológica Nacional
repository.name.fl_str_mv Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacional
repository.mail.fl_str_mv gestionria@rec.utn.edu.ar; fsuarez@rec.utn.edu.ar
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score 13.24418

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