Superacid sulfated-zirconia mesoporous carbon (SZrMC) “efficient chemotherapeutic agent”.

Autores
Anunziata , Oscar Alfredo
Año de publicación
2021
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
The goal of this work is the incorporation of zirco-nium, in the process of self-assembly of the tem-plate 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 mate-rial, with zirconium in its structure (SZr-MC), and without zirconium oxide as a bulky species. The sulfated mesoporous carbon has a high acidity that can 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 function-alized with sulfated zirconia. During the crystalliza-tion process, P123, A-type starch, zirconia and sili-con were able to cohesionize. After sulphuric treat-ments, the physical characteristics of the parent car-bon were retained in the ultimate material, reveal-ing 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 absence of ZrO2 as a bulk species. Therefore, Zr as an iso-lated 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 NH3-TPD profile and the high pyridine retention temper-ature 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 su-peracid nanomaterial.
Fil: Anunziata, Oscar Alfredo. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación en Nanociencia y Nanotecnología; Argentina.
Materia
Sulphated zirconia
Mesoporous cabon
Superacid material
Antimicrobial
Anticáncer
Anti-fungal
Nanobiomedical applications
Nivel de accesibilidad
acceso abierto
Condiciones de uso
2022-06-01T22:14:58Z
Repositorio
Repositorio Institucional Abierto (UTN)
Institución
Universidad Tecnológica Nacional
OAI Identificador
oai:ria.utn.edu.ar:20.500.12272/6591
Acceder
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network_acronym_str RIAUTN
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network_name_str Repositorio Institucional Abierto (UTN)
spelling Superacid sulfated-zirconia mesoporous carbon (SZrMC) “efficient chemotherapeutic agent”.Anunziata , Oscar AlfredoSulphated zirconiaMesoporous cabonSuperacid materialAntimicrobialAnticáncerAnti-fungalNanobiomedical applicationsThe goal of this work is the incorporation of zirco-nium, in the process of self-assembly of the tem-plate 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 mate-rial, with zirconium in its structure (SZr-MC), and without zirconium oxide as a bulky species. The sulfated mesoporous carbon has a high acidity that can 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 function-alized with sulfated zirconia. During the crystalliza-tion process, P123, A-type starch, zirconia and sili-con were able to cohesionize. After sulphuric treat-ments, the physical characteristics of the parent car-bon were retained in the ultimate material, reveal-ing 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 absence of ZrO2 as a bulk species. Therefore, Zr as an iso-lated 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 NH3-TPD profile and the high pyridine retention temper-ature 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 su-peracid nanomaterial.Fil: Anunziata, Oscar Alfredo. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación en Nanociencia y Nanotecnología; Argentina.2022-06-01T22:14:58Z2022-06-01T22:14:58Z2021info:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciapdfapplication/pdfhttp://hdl.handle.net/20.500.12272/6591-enginfo:eu-repo/semantics/openAccess2022-06-01T22:14:58Zhttp://creativecommons.org/licenses/by-nc-nd/4.0/Attribution-NonCommercial-NoDerivatives 4.0 InternacionalOscar Alfredo Anunziata_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 Nacional2026-10-01T12:00:05Zoai:ria.utn.edu.ar:20.500.12272/6591instacron: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:a2026-10-01 12:00:06.335Repositorio 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 zirconia
Mesoporous cabon
Superacid material
Antimicrobial
Anticáncer
Anti-fungal
Nanobiomedical applications
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 zirconia
Mesoporous cabon
Superacid material
Antimicrobial
Anticáncer
Anti-fungal
Nanobiomedical applications
topic Sulphated zirconia
Mesoporous cabon
Superacid material
Antimicrobial
Anticáncer
Anti-fungal
Nanobiomedical applications
dc.description.none.fl_txt_mv The goal of this work is the incorporation of zirco-nium, in the process of self-assembly of the tem-plate 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 mate-rial, with zirconium in its structure (SZr-MC), and without zirconium oxide as a bulky species. The sulfated mesoporous carbon has a high acidity that can 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 function-alized with sulfated zirconia. During the crystalliza-tion process, P123, A-type starch, zirconia and sili-con were able to cohesionize. After sulphuric treat-ments, the physical characteristics of the parent car-bon were retained in the ultimate material, reveal-ing 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 absence of ZrO2 as a bulk species. Therefore, Zr as an iso-lated 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 NH3-TPD profile and the high pyridine retention temper-ature 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 su-peracid nanomaterial.
Fil: Anunziata, Oscar Alfredo. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación en Nanociencia y Nanotecnología; Argentina.
description The goal of this work is the incorporation of zirco-nium, in the process of self-assembly of the tem-plate 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 mate-rial, with zirconium in its structure (SZr-MC), and without zirconium oxide as a bulky species. The sulfated mesoporous carbon has a high acidity that can 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 function-alized with sulfated zirconia. During the crystalliza-tion process, P123, A-type starch, zirconia and sili-con were able to cohesionize. After sulphuric treat-ments, the physical characteristics of the parent car-bon were retained in the ultimate material, reveal-ing 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 absence of ZrO2 as a bulk species. Therefore, Zr as an iso-lated 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 NH3-TPD profile and the high pyridine retention temper-ature 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 su-peracid nanomaterial.
publishDate 2021
dc.date.none.fl_str_mv 2021
2022-06-01T22:14:58Z
2022-06-01T22:14:58Z
dc.type.none.fl_str_mv info:eu-repo/semantics/conferenceObject
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
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status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12272/6591
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url http://hdl.handle.net/20.500.12272/6591
identifier_str_mv -
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
2022-06-01T22:14:58Z
http://creativecommons.org/licenses/by-nc-nd/4.0/
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Oscar Alfredo Anunziata
_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 2022-06-01T22:14:58Z
http://creativecommons.org/licenses/by-nc-nd/4.0/
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Oscar Alfredo Anunziata
_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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