Controlling the surface chemistry of graphene oxide: Key towards efficient ZnO-GO photocatalysts

12 Figures, 3 Tables.-- © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/

Detalhes bibliográficos
Autores: Víctor-Román, Sandra, García-Bordejé, José Enrique, Hernández-Ferrer, Javier, González Domínguez, José Miguel, Ansón-Casaos, Alejandro, Silva, Adrián M. T., Maser, Wolfgang K., Benito, Ana M.
Formato: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2019
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:dnet:digitalcsic_::67d3439cf3b36369b02ab17a78d4f10e
Acesso em linha:http://hdl.handle.net/10261/184978
Access Level:acceso abierto
Palavra-chave:Graphene oxide
Zinc oxide
ZnO-GO hybrid
Photocatalysis
Surface chemistry
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oai_identifier_str oai:dnet:digitalcsic_::67d3439cf3b36369b02ab17a78d4f10e
network_acronym_str ES
network_name_str España
repository_id_str
dc.title.none.fl_str_mv Controlling the surface chemistry of graphene oxide: Key towards efficient ZnO-GO photocatalysts
title Controlling the surface chemistry of graphene oxide: Key towards efficient ZnO-GO photocatalysts
spellingShingle Controlling the surface chemistry of graphene oxide: Key towards efficient ZnO-GO photocatalysts
Víctor-Román, Sandra
Graphene oxide
Zinc oxide
ZnO-GO hybrid
Photocatalysis
Surface chemistry
title_short Controlling the surface chemistry of graphene oxide: Key towards efficient ZnO-GO photocatalysts
title_full Controlling the surface chemistry of graphene oxide: Key towards efficient ZnO-GO photocatalysts
title_fullStr Controlling the surface chemistry of graphene oxide: Key towards efficient ZnO-GO photocatalysts
title_full_unstemmed Controlling the surface chemistry of graphene oxide: Key towards efficient ZnO-GO photocatalysts
title_sort Controlling the surface chemistry of graphene oxide: Key towards efficient ZnO-GO photocatalysts
dc.creator.none.fl_str_mv Víctor-Román, Sandra
García-Bordejé, José Enrique
Hernández-Ferrer, Javier
González Domínguez, José Miguel
Ansón-Casaos, Alejandro
Silva, Adrián M. T.
Maser, Wolfgang K.
Benito, Ana M.
author Víctor-Román, Sandra
author_facet Víctor-Román, Sandra
García-Bordejé, José Enrique
Hernández-Ferrer, Javier
González Domínguez, José Miguel
Ansón-Casaos, Alejandro
Silva, Adrián M. T.
Maser, Wolfgang K.
Benito, Ana M.
author_role author
author2 García-Bordejé, José Enrique
Hernández-Ferrer, Javier
González Domínguez, José Miguel
Ansón-Casaos, Alejandro
Silva, Adrián M. T.
Maser, Wolfgang K.
Benito, Ana M.
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía, Industria y Competitividad (España)
Gobierno de Aragón
European Commission
Fundação para a Ciência e a Tecnologia (Portugal)
Víctor-Román, Sandra [0000-0003-0924-5840]
García-Bordejé, José Enrique [0000-0001-8158-1270]
Hernández-Ferrer, Javier [0000-0002-6586-6935]
González Domínguez, José Miguel [0000-0002-0701-7695]
Ansón Casaos, Alejandro [0000-0002-3134-8566]
Silva, Adrián M. T. [0000-0001-8551-6353]
Maser, Wolfgang K. [0000-0003-4253-0758]
Benito, Ana M. [0000-0002-8654-7386]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Graphene oxide
Zinc oxide
ZnO-GO hybrid
Photocatalysis
Surface chemistry
topic Graphene oxide
Zinc oxide
ZnO-GO hybrid
Photocatalysis
Surface chemistry
description 12 Figures, 3 Tables.-- © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
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/10261/184978
url http://hdl.handle.net/10261/184978
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
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info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/ENE2016-79282-C5-1-R
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/BES2014-068727
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/EEBB-I-18-12785
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/IJCI-2016-27789
Víctor-Román, Sandra; García-Bordejé, José Enrique; Hernández-Ferrer, Javier; González Domínguez, José Miguel; Ansón Casaos, Alejandro; Silva, Adrián; Maser, Wolfgang K.; Benito, Ana M. Controlling the surface chemistry of graphene oxide: Key towards efficient ZnO-GO photocatalysts. http://hdl.handle.net/10261/227362
http://dx.doi.org/10.1016/j.cattod.2019.05.049
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
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spelling Controlling the surface chemistry of graphene oxide: Key towards efficient ZnO-GO photocatalystsVíctor-Román, SandraGarcía-Bordejé, José EnriqueHernández-Ferrer, JavierGonzález Domínguez, José MiguelAnsón-Casaos, AlejandroSilva, Adrián M. T.Maser, Wolfgang K.Benito, Ana M.Graphene oxideZinc oxideZnO-GO hybridPhotocatalysisSurface chemistry12 Figures, 3 Tables.-- © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/Graphene oxide (GO) and related materials are widely reported to enhance the photocatalytic activity of zinc oxide. However, the origin of the observed performance improvements remains elusive and studies contributing to a deeper understanding of this critical issue are largely missing. In this work, we have prepared a set of benchmark ZnO-GO hybrid materials in order to systematically put under closer scrutiny the influence of the surface chemistry of GO on the photocatalytic degradation of methylene blue. The set of ZnO-GO hybrids has been synthesized in an ultrasonication process involving ZnO nanoparticles obtained in a microwave synthesis process and GO with three distinct oxidation degrees, employed in three different loading fractions. Structural and physical-chemical characterization by XRD, FTIR, Raman, UV–vis, photoluminescence and spectroscopy and XPS, consistently demonstrate the importance of the surface chemistry of GO for establishing photo-induced charge-transfer interface interactions with ZnO, facilitating the enhancement of the catalytic activity of the ZnO-GO catalyst. Optimized interface interactions thus enabled the design of a ZnO-GO catalyst exhibiting a conversion rate of 80% obtained in a time of 70 min and at a catalyst concentration of only 0.045 mg/mL.This work was financially supported by the Spanish MINEICO (project grant ENE 2016-79282-C5-1-R), Gobierno de Aragón (Grupo Reconocido DGA T03_17R), and associated EU Regional Development Funds. This work has been also partially supported by Project POCI-01-0145-FEDER-006984 – Associate Laboratory LSRE-LCM funded by European Regional Development Fund (ERDF) through COMPETE2020-Programa Operacional Competitividade e Internacionalização (POCI) – and by national funds through FCT-Fundação para a Ciência e a Tecnologia. S. Víctor-Roman acknowledges Spanish MINEICO for her PhD grant (BES2014-068727 and associated EU Social Funds) and for her research stay scholarship in Portugal (EEBB-I-18-12785). J.M. González-Domínguez acknowledges Spanish Ministry of Science, Innovation and Universities for his 'Juan de la Cierva - Incorporación' grant (IJCI-2016-27789).Peer reviewedElsevierMinisterio de Economía, Industria y Competitividad (España)Gobierno de AragónEuropean CommissionFundação para a Ciência e a Tecnologia (Portugal)Víctor-Román, Sandra [0000-0003-0924-5840]García-Bordejé, José Enrique [0000-0001-8158-1270]Hernández-Ferrer, Javier [0000-0002-6586-6935]González Domínguez, José Miguel [0000-0002-0701-7695]Ansón Casaos, Alejandro [0000-0002-3134-8566]Silva, Adrián M. T. [0000-0001-8551-6353]Maser, Wolfgang K. [0000-0003-4253-0758]Benito, Ana M. [0000-0002-8654-7386]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/10261/184978reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##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-Rinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/BES2014-068727info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/EEBB-I-18-12785info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/IJCI-2016-27789Víctor-Román, Sandra; García-Bordejé, José Enrique; Hernández-Ferrer, Javier; González Domínguez, José Miguel; Ansón Casaos, Alejandro; Silva, Adrián; Maser, Wolfgang K.; Benito, Ana M. Controlling the surface chemistry of graphene oxide: Key towards efficient ZnO-GO photocatalysts. http://hdl.handle.net/10261/227362http://dx.doi.org/10.1016/j.cattod.2019.05.049Síinfo:eu-repo/semantics/openAccessoai:dnet:digitalcsic_::67d3439cf3b36369b02ab17a78d4f10e2026-05-22T06:33:51Z
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