Advantages of microwave-assisted synthesis of silica gels

The sol-gel process is a commonly used methodology for producing silica gels with tailored textural properties. However, the full conventional procedure involves several steps and is complicated and time-consuming, preventing production on a large scale. In the present study, as a more practical app...

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Autores: Flores-López, Samantha L., Fernández Villanueva, Sara, Montes Morán, Miguel Ángel, Cruz, Guillermo, Garrido, Julián J., Arenillas de la Puente, Ana
Formato: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2020
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/217240
Acesso em linha:http://hdl.handle.net/10261/217240
Access Level:acceso abierto
Palavra-chave:Microwave heating
Silica gels
Porosity
Synthesis time
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spelling Advantages of microwave-assisted synthesis of silica gelsFlores-López, Samantha L.Fernández Villanueva, SaraMontes Morán, Miguel ÁngelCruz, GuillermoGarrido, Julián J.Arenillas de la Puente, AnaMicrowave heatingSilica gelsPorositySynthesis timeThe sol-gel process is a commonly used methodology for producing silica gels with tailored textural properties. However, the full conventional procedure involves several steps and is complicated and time-consuming, preventing production on a large scale. In the present study, as a more practical approach, microwave heating was applied via the acid-base synthesis of different precursor mixtures. By evaluating the effect of microwaves at each synthesis step, optimal pathways were established resulting in considerable time-saving. Mesoporous gels with porosities of around 70 per cent were obtained with a reduction in time consumption of more than 90 per cent compared to conventional methods. Strict control of the production stages has led to a much better understanding of the contribution of each stage to the overall process, making it possible to much more accurately evaluate the effects of applying microwave technology on the final properties of the materials with a view to optimizing their production.The authors gratefully acknowledge the financial support received from the Ministerio de Economía, Industria y Competitividad from Spain (Project CTQ2017-87820-R) and Principado de Asturias–FICYT-FEDER (Project PCTI-Asturias IDI/2018/000118). SFL is also grateful to Administración del Principado de Asturias for her research training grant awarded through “Severo Ochoa” program.Peer reviewedElsevierMinisterio de Economía, Industria y Competitividad (España)Principado de AsturiasMontes Morán, Miguel Ángel [0000-0002-8791-5582]Arenillas de la Puente, Ana [0000-0002-5388-1169]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202020202020info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/217240reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/CTQ2017-87820-Rhttps://doi.org/10.1016/j.colsurfa.2020.125248Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2172402026-05-22T06:33:51Z
dc.title.none.fl_str_mv Advantages of microwave-assisted synthesis of silica gels
title Advantages of microwave-assisted synthesis of silica gels
spellingShingle Advantages of microwave-assisted synthesis of silica gels
Flores-López, Samantha L.
Microwave heating
Silica gels
Porosity
Synthesis time
title_short Advantages of microwave-assisted synthesis of silica gels
title_full Advantages of microwave-assisted synthesis of silica gels
title_fullStr Advantages of microwave-assisted synthesis of silica gels
title_full_unstemmed Advantages of microwave-assisted synthesis of silica gels
title_sort Advantages of microwave-assisted synthesis of silica gels
dc.creator.none.fl_str_mv Flores-López, Samantha L.
Fernández Villanueva, Sara
Montes Morán, Miguel Ángel
Cruz, Guillermo
Garrido, Julián J.
Arenillas de la Puente, Ana
author Flores-López, Samantha L.
author_facet Flores-López, Samantha L.
Fernández Villanueva, Sara
Montes Morán, Miguel Ángel
Cruz, Guillermo
Garrido, Julián J.
Arenillas de la Puente, Ana
author_role author
author2 Fernández Villanueva, Sara
Montes Morán, Miguel Ángel
Cruz, Guillermo
Garrido, Julián J.
Arenillas de la Puente, Ana
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía, Industria y Competitividad (España)
Principado de Asturias
Montes Morán, Miguel Ángel [0000-0002-8791-5582]
Arenillas de la Puente, Ana [0000-0002-5388-1169]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Microwave heating
Silica gels
Porosity
Synthesis time
topic Microwave heating
Silica gels
Porosity
Synthesis time
description The sol-gel process is a commonly used methodology for producing silica gels with tailored textural properties. However, the full conventional procedure involves several steps and is complicated and time-consuming, preventing production on a large scale. In the present study, as a more practical approach, microwave heating was applied via the acid-base synthesis of different precursor mixtures. By evaluating the effect of microwaves at each synthesis step, optimal pathways were established resulting in considerable time-saving. Mesoporous gels with porosities of around 70 per cent were obtained with a reduction in time consumption of more than 90 per cent compared to conventional methods. Strict control of the production stages has led to a much better understanding of the contribution of each stage to the overall process, making it possible to much more accurately evaluate the effects of applying microwave technology on the final properties of the materials with a view to optimizing their production.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/217240
url http://hdl.handle.net/10261/217240
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/CTQ2017-87820-R
https://doi.org/10.1016/j.colsurfa.2020.125248
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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