Superacid Sulfated-Zirconia Mesoporous Carbon (SZrMC) “Efficient Chemotherapeutic Agent”

Autores
Anunziata, Oscar Alfredo
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The goal of this work is the incorporation of zirconium, in the process of self-assembly of the template agents (P123) and hydrolyzed TEOS, and a source of carbon in the original synthesis mixture. This direct incorporation of zirconia leads, after carbonization, to ordered mesoporous carbon material, with zirconium in its structure (SZr-MC), and without zirconium oxide as a bulky species. The sulfated mesoporous carbon has a high acidity thatcan make the SZr-MC nanoscopic material, with super acidic properties. We have designed a novel synthesis procedure for the formation of acidic mesoporous carbon-based nanomaterials functionalized with sulfated zirconia. During the crystallization process, P123, A-type starch, zirconia and siliwere able to cohesionize. After sulphuric treatments, the physical characteristics of the parent carbon were retained in the ultimate material, revealing a great surface area (1300 m2/g), a large pore volume and a well-ordered porosity composed of uniform mesopores of approximately 3.5 nm. XRD, SEM, TEM and XPS studies indicated the absenceof ZrO2 as a bulk species. Therefore, Zr as an isolated species was successfully anchored in the MC for subsequent sulfation. Furthermore, evidence from the XPS C 1s data can be attributed to the sp2 hybridized carbon (from the graphitic structure of the mesoporous carbon), which would form Zr-C bonds. In addition, the large amount of -OH groups, coming from the starch used as carbon source, would promote the formation of Zr-O-C species (also detected by XPS), forming part of the MC walls, in the self-assembly process.The evidence of two high temperature desorption peaks in the NH3TPD profile and the high pyridine retention temperature determined by FTIR revealed medium, strong and super-strong acid sites in the SZrMC, and it can be assumed that these sites correspond to a superacid nanomaterial.
Fil: Anunziata, Oscar Alfredo. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación Nanociencia y Nanotecnología; Argentina.
Peer Reviewed
Materia
Sulphated zirconio
Mesoporous cabon
Superacid material
Nivel de accesibilidad
acceso abierto
Condiciones de uso
Attribution-NonCommercial-NoDerivs 2.5 Argentina
Repositorio
Repositorio Institucional Abierto (UTN)
Institución
Universidad Tecnológica Nacional
OAI Identificador
oai:ria.utn.edu.ar:20.500.12272/15841
Acceder
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network_acronym_str RIAUTN
repository_id_str a
network_name_str Repositorio Institucional Abierto (UTN)
spelling Superacid Sulfated-Zirconia Mesoporous Carbon (SZrMC) “Efficient Chemotherapeutic Agent”Anunziata, Oscar AlfredoSulphated zirconioMesoporous cabonSuperacid materialThe goal of this work is the incorporation of zirconium, in the process of self-assembly of the template agents (P123) and hydrolyzed TEOS, and a source of carbon in the original synthesis mixture. This direct incorporation of zirconia leads, after carbonization, to ordered mesoporous carbon material, with zirconium in its structure (SZr-MC), and without zirconium oxide as a bulky species. The sulfated mesoporous carbon has a high acidity thatcan make the SZr-MC nanoscopic material, with super acidic properties. We have designed a novel synthesis procedure for the formation of acidic mesoporous carbon-based nanomaterials functionalized with sulfated zirconia. During the crystallization process, P123, A-type starch, zirconia and siliwere able to cohesionize. After sulphuric treatments, the physical characteristics of the parent carbon were retained in the ultimate material, revealing a great surface area (1300 m2/g), a large pore volume and a well-ordered porosity composed of uniform mesopores of approximately 3.5 nm. XRD, SEM, TEM and XPS studies indicated the absenceof ZrO2 as a bulk species. Therefore, Zr as an isolated species was successfully anchored in the MC for subsequent sulfation. Furthermore, evidence from the XPS C 1s data can be attributed to the sp2 hybridized carbon (from the graphitic structure of the mesoporous carbon), which would form Zr-C bonds. In addition, the large amount of -OH groups, coming from the starch used as carbon source, would promote the formation of Zr-O-C species (also detected by XPS), forming part of the MC walls, in the self-assembly process.The evidence of two high temperature desorption peaks in the NH3TPD profile and the high pyridine retention temperature determined by FTIR revealed medium, strong and super-strong acid sites in the SZrMC, and it can be assumed that these sites correspond to a superacid nanomaterial.Fil: Anunziata, Oscar Alfredo. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación Nanociencia y Nanotecnología; Argentina.Peer ReviewedSMS smart materials and surfaces2026-10-23T19:22:05Z2021info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articulopdfapplication/pdfSmart Materials and Surfaces- SMS 2021 Conference and Exhibition-20 Octuber 2021, Milan Italyahttps://hdl.handle.net/20.500.12272/15841enginfo:eu-repo/semantics/openAccessAttribution-NonCommercial-NoDerivs 2.5 Argentinahttp://creativecommons.org/licenses/by-nc-nd/2.5/ar/Anunziata, Oscar Alfredohttps://creativecommons.org/licenses/by-nc-nd/4.0/reponame:Repositorio Institucional Abierto (UTN)instname:Universidad Tecnológica Nacional2026-10-29T11:27:47Zoai:ria.utn.edu.ar:20.500.12272/15841instacron: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:a2026-10-29 11:27:47.559Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacionalfalse
dc.title.none.fl_str_mv Superacid Sulfated-Zirconia Mesoporous Carbon (SZrMC) “Efficient Chemotherapeutic Agent”
title Superacid Sulfated-Zirconia Mesoporous Carbon (SZrMC) “Efficient Chemotherapeutic Agent”
spellingShingle Superacid Sulfated-Zirconia Mesoporous Carbon (SZrMC) “Efficient Chemotherapeutic Agent”
Anunziata, Oscar Alfredo
Sulphated zirconio
Mesoporous cabon
Superacid material
title_short Superacid Sulfated-Zirconia Mesoporous Carbon (SZrMC) “Efficient Chemotherapeutic Agent”
title_full Superacid Sulfated-Zirconia Mesoporous Carbon (SZrMC) “Efficient Chemotherapeutic Agent”
title_fullStr Superacid Sulfated-Zirconia Mesoporous Carbon (SZrMC) “Efficient Chemotherapeutic Agent”
title_full_unstemmed Superacid Sulfated-Zirconia Mesoporous Carbon (SZrMC) “Efficient Chemotherapeutic Agent”
title_sort Superacid Sulfated-Zirconia Mesoporous Carbon (SZrMC) “Efficient Chemotherapeutic Agent”
dc.creator.none.fl_str_mv Anunziata, Oscar Alfredo
author Anunziata, Oscar Alfredo
author_facet Anunziata, Oscar Alfredo
author_role author
dc.subject.none.fl_str_mv Sulphated zirconio
Mesoporous cabon
Superacid material
topic Sulphated zirconio
Mesoporous cabon
Superacid material
dc.description.none.fl_txt_mv The goal of this work is the incorporation of zirconium, in the process of self-assembly of the template agents (P123) and hydrolyzed TEOS, and a source of carbon in the original synthesis mixture. This direct incorporation of zirconia leads, after carbonization, to ordered mesoporous carbon material, with zirconium in its structure (SZr-MC), and without zirconium oxide as a bulky species. The sulfated mesoporous carbon has a high acidity thatcan make the SZr-MC nanoscopic material, with super acidic properties. We have designed a novel synthesis procedure for the formation of acidic mesoporous carbon-based nanomaterials functionalized with sulfated zirconia. During the crystallization process, P123, A-type starch, zirconia and siliwere able to cohesionize. After sulphuric treatments, the physical characteristics of the parent carbon were retained in the ultimate material, revealing a great surface area (1300 m2/g), a large pore volume and a well-ordered porosity composed of uniform mesopores of approximately 3.5 nm. XRD, SEM, TEM and XPS studies indicated the absenceof ZrO2 as a bulk species. Therefore, Zr as an isolated species was successfully anchored in the MC for subsequent sulfation. Furthermore, evidence from the XPS C 1s data can be attributed to the sp2 hybridized carbon (from the graphitic structure of the mesoporous carbon), which would form Zr-C bonds. In addition, the large amount of -OH groups, coming from the starch used as carbon source, would promote the formation of Zr-O-C species (also detected by XPS), forming part of the MC walls, in the self-assembly process.The evidence of two high temperature desorption peaks in the NH3TPD profile and the high pyridine retention temperature determined by FTIR revealed medium, strong and super-strong acid sites in the SZrMC, and it can be assumed that these sites correspond to a superacid nanomaterial.
Fil: Anunziata, Oscar Alfredo. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación Nanociencia y Nanotecnología; Argentina.
Peer Reviewed
description The goal of this work is the incorporation of zirconium, in the process of self-assembly of the template agents (P123) and hydrolyzed TEOS, and a source of carbon in the original synthesis mixture. This direct incorporation of zirconia leads, after carbonization, to ordered mesoporous carbon material, with zirconium in its structure (SZr-MC), and without zirconium oxide as a bulky species. The sulfated mesoporous carbon has a high acidity thatcan make the SZr-MC nanoscopic material, with super acidic properties. We have designed a novel synthesis procedure for the formation of acidic mesoporous carbon-based nanomaterials functionalized with sulfated zirconia. During the crystallization process, P123, A-type starch, zirconia and siliwere able to cohesionize. After sulphuric treatments, the physical characteristics of the parent carbon were retained in the ultimate material, revealing a great surface area (1300 m2/g), a large pore volume and a well-ordered porosity composed of uniform mesopores of approximately 3.5 nm. XRD, SEM, TEM and XPS studies indicated the absenceof ZrO2 as a bulk species. Therefore, Zr as an isolated species was successfully anchored in the MC for subsequent sulfation. Furthermore, evidence from the XPS C 1s data can be attributed to the sp2 hybridized carbon (from the graphitic structure of the mesoporous carbon), which would form Zr-C bonds. In addition, the large amount of -OH groups, coming from the starch used as carbon source, would promote the formation of Zr-O-C species (also detected by XPS), forming part of the MC walls, in the self-assembly process.The evidence of two high temperature desorption peaks in the NH3TPD profile and the high pyridine retention temperature determined by FTIR revealed medium, strong and super-strong acid sites in the SZrMC, and it can be assumed that these sites correspond to a superacid nanomaterial.
publishDate 2021
dc.date.none.fl_str_mv 2021
2026-10-23T19:22:05Z
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 Smart Materials and Surfaces- SMS 2021 Conference and Exhibition-20 Octuber 2021, Milan Italya
https://hdl.handle.net/20.500.12272/15841
identifier_str_mv Smart Materials and Surfaces- SMS 2021 Conference and Exhibition-20 Octuber 2021, Milan Italya
url https://hdl.handle.net/20.500.12272/15841
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
Attribution-NonCommercial-NoDerivs 2.5 Argentina
http://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Anunziata, Oscar Alfredo
https://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivs 2.5 Argentina
http://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Anunziata, Oscar Alfredo
https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.format.none.fl_str_mv pdf
application/pdf
dc.publisher.none.fl_str_mv SMS smart materials and surfaces
publisher.none.fl_str_mv SMS smart materials and surfaces
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
_version_ 1880396329741451264
score 13.334379

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