Reduced graphene oxide aerogels with controlled continuous microchannels for environmental remediation

9 Figuras.- Información suplementaria.

Detalles Bibliográficos
Autores: Rodríguez Mata, Vanesa, González Domínguez, José Miguel, Benito, Ana M., Maser, Wolfgang K., García-Bordejé, José Enrique
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2019
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/179645
Acceso en línea:http://hdl.handle.net/10261/179645
Access Level:acceso abierto
Palabra clave:Continuous pores
Graphene aerogel
Graphene oxide
Hydrothermal reduction
Oil absorption
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spelling Reduced graphene oxide aerogels with controlled continuous microchannels for environmental remediationRodríguez Mata, VanesaGonzález Domínguez, José MiguelBenito, Ana M.Maser, Wolfgang K.García-Bordejé, José EnriqueContinuous poresGraphene aerogelGraphene oxideHydrothermal reductionOil absorption9 Figuras.- Información suplementaria.3D porous graphene microarchitectures with aligned and continuous channels are of paramount interest for several applications such as pollutant removal, energy storage, or biomedical engineering. For these applications, an accurate control over the pore microstructure is of capital importance. Freeze casting is a well-stablished technique to prepare graphene aerogels with unidirectional channels. This technique is typically applied to plain GO colloids, leading to discontinuous microchannels. Herein we have carried out the freeze process starting directly with partially reduced graphene (rGO) hydrogels prepared by a prior hydrothermal treatment in autoclave. This approach leads to the formation of aerogels with aligned and continuous microchannels, enabled by an intermediate cross-linking degree of the rGO nanosheets, carefully controlled by keeping the time of the prior hydrothermal process between the thresholds of 45–75 min. To the best of our knowledge, the effect of the degree of cross-linking in the freeze casting process is not yet reported. The resulting rGO aerogels with highly aligned microchannel structure reveal superior properties over its isotropic counterpart of randomly oriented pores for the absorption of nonpolar solvents and the selective adsorption of an aromatic compound dissolved in an alkane. Our combined hydrothermal freeze casting approach thus affords aligned microchannel rGO aerogels of enormous potential for environmental remediation.Financial support from Spanish Ministry MINECO (Project ENE2016-79282-C5-1-R), Gobierno de Aragón (Grupo Reconocido DGA T03_17R), and associated EU Regional Development Funds are gratefully acknowledged.Peer reviewedACS PublicationsMinisterio de Economía y Competitividad (España)Gobierno de AragónEuropean CommissionRodríguez Mata, Vanessa [0000-0002-7380-8524]González Domínguez, José Miguel [0000-0002-0701-7695]Benito, Ana M. [0000-0002-8654-7386]Maser, Wolfgang K. [0000-0003-4253-0758]García-Bordejé, José Enrique [0000-0001-8158-1270]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201920192019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/179645reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/ENE2016-79282-C5-1-Rhttp://dx.doi.org/10.1021/acsanm.8b02101Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1796452026-05-22T06:33:51Z
dc.title.none.fl_str_mv Reduced graphene oxide aerogels with controlled continuous microchannels for environmental remediation
title Reduced graphene oxide aerogels with controlled continuous microchannels for environmental remediation
spellingShingle Reduced graphene oxide aerogels with controlled continuous microchannels for environmental remediation
Rodríguez Mata, Vanesa
Continuous pores
Graphene aerogel
Graphene oxide
Hydrothermal reduction
Oil absorption
title_short Reduced graphene oxide aerogels with controlled continuous microchannels for environmental remediation
title_full Reduced graphene oxide aerogels with controlled continuous microchannels for environmental remediation
title_fullStr Reduced graphene oxide aerogels with controlled continuous microchannels for environmental remediation
title_full_unstemmed Reduced graphene oxide aerogels with controlled continuous microchannels for environmental remediation
title_sort Reduced graphene oxide aerogels with controlled continuous microchannels for environmental remediation
dc.creator.none.fl_str_mv Rodríguez Mata, Vanesa
González Domínguez, José Miguel
Benito, Ana M.
Maser, Wolfgang K.
García-Bordejé, José Enrique
author Rodríguez Mata, Vanesa
author_facet Rodríguez Mata, Vanesa
González Domínguez, José Miguel
Benito, Ana M.
Maser, Wolfgang K.
García-Bordejé, José Enrique
author_role author
author2 González Domínguez, José Miguel
Benito, Ana M.
Maser, Wolfgang K.
García-Bordejé, José Enrique
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Gobierno de Aragón
European Commission
Rodríguez Mata, Vanessa [0000-0002-7380-8524]
González Domínguez, José Miguel [0000-0002-0701-7695]
Benito, Ana M. [0000-0002-8654-7386]
Maser, Wolfgang K. [0000-0003-4253-0758]
García-Bordejé, José Enrique [0000-0001-8158-1270]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Continuous pores
Graphene aerogel
Graphene oxide
Hydrothermal reduction
Oil absorption
topic Continuous pores
Graphene aerogel
Graphene oxide
Hydrothermal reduction
Oil absorption
description 9 Figuras.- Información suplementaria.
publishDate 2019
dc.date.none.fl_str_mv 2019
2019
2019
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/10261/179645
url http://hdl.handle.net/10261/179645
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/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/ENE2016-79282-C5-1-R
http://dx.doi.org/10.1021/acsanm.8b02101
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv ACS Publications
publisher.none.fl_str_mv ACS Publications
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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score 15.811543

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