Catalytic wet peroxide oxidation of phenol over Fe/AC catalysts: Influence of iron precursor and activated carbon surface

[EN] Different activated carbon-supported Fe catalysts have been prepared and tested in CWPO of phenol. Three well characterized activated carbons and two iron precursors (iron nitrate and iron pentacarbonyl) have been used. The behavior of these catalysts in CWPO has been related with their porous...

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Detalles Bibliográficos
Autores: Rey Barroso, Ana, Faraldos, Marisol, Casas, J. A., Zazo, J. A., Bahamonde, A., Rodríguez, J. J.
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2009
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/345841
Acceso en línea:http://hdl.handle.net/10261/345841
Access Level:acceso abierto
Palabra clave:Oxidation
Hydrogen peroxide
Catalyst
Activated carbon
Iron
Phenol
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spelling Catalytic wet peroxide oxidation of phenol over Fe/AC catalysts: Influence of iron precursor and activated carbon surfaceRey Barroso, AnaFaraldos, MarisolCasas, J. A.Zazo, J. A.Bahamonde, A.Rodríguez, J. J.OxidationHydrogen peroxideCatalystActivated carbonIronPhenol[EN] Different activated carbon-supported Fe catalysts have been prepared and tested in CWPO of phenol. Three well characterized activated carbons and two iron precursors (iron nitrate and iron pentacarbonyl) have been used. The behavior of these catalysts in CWPO has been related with their porous structure, surface composition, in terms of oxygen groups and Fe distribution onto the catalyst particles. The catalysts with a more uniform distribution of Fe showed a higher oxidation activity than the ones with an internal (egg-yolk type) or external (egg-shell type) distribution. These last provoke a faster decomposition of H2O2 mainly to O2, non-reactive at the mild reaction temperature used (50º C). No significant differences were observed from the iron precursors. Complete conversion of phenol and almost 80 % mineralization were obtained in less than 2 hours with the best catalyst. The residual by-products consisted in short-chain organic acids without significance in terms of toxicity. Fe leaching was observed in all the cases which can be mainly attributed to the presence of oxalic acid as oxidation by-product, refractory to the CWPO process investigated. The intensity of Fe leaching was related with the concentration of oxalic acidThis work has been supported by the Spanish Plan Nacional de I+D+i through the projects CTM2007-60577/TECNO, CTQ2007-1661748/PPQ and CTQ2005-02284/PPQ. Ana Rey thanks to the Ministerio de Educación y Ciencia (MEC) for a FPU Grant.Peer reviewedElsevier BVMinisterio de Ciencia e Innovación (España)Ministerio de Educación y Ciencia (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2024202420092024info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/345841reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésInglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MEC//CTM2007-60577info:eu-repo/grantAgreement/MEC//CTQ2007-1661748info:eu-repo/grantAgreement/MEC//CTQ2005-02284https://doi.org/10.1016/j.apcatb.2008.07.023Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3458412026-05-22T06:33:51Z
dc.title.none.fl_str_mv Catalytic wet peroxide oxidation of phenol over Fe/AC catalysts: Influence of iron precursor and activated carbon surface
title Catalytic wet peroxide oxidation of phenol over Fe/AC catalysts: Influence of iron precursor and activated carbon surface
spellingShingle Catalytic wet peroxide oxidation of phenol over Fe/AC catalysts: Influence of iron precursor and activated carbon surface
Rey Barroso, Ana
Oxidation
Hydrogen peroxide
Catalyst
Activated carbon
Iron
Phenol
title_short Catalytic wet peroxide oxidation of phenol over Fe/AC catalysts: Influence of iron precursor and activated carbon surface
title_full Catalytic wet peroxide oxidation of phenol over Fe/AC catalysts: Influence of iron precursor and activated carbon surface
title_fullStr Catalytic wet peroxide oxidation of phenol over Fe/AC catalysts: Influence of iron precursor and activated carbon surface
title_full_unstemmed Catalytic wet peroxide oxidation of phenol over Fe/AC catalysts: Influence of iron precursor and activated carbon surface
title_sort Catalytic wet peroxide oxidation of phenol over Fe/AC catalysts: Influence of iron precursor and activated carbon surface
dc.creator.none.fl_str_mv Rey Barroso, Ana
Faraldos, Marisol
Casas, J. A.
Zazo, J. A.
Bahamonde, A.
Rodríguez, J. J.
author Rey Barroso, Ana
author_facet Rey Barroso, Ana
Faraldos, Marisol
Casas, J. A.
Zazo, J. A.
Bahamonde, A.
Rodríguez, J. J.
author_role author
author2 Faraldos, Marisol
Casas, J. A.
Zazo, J. A.
Bahamonde, A.
Rodríguez, J. J.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (España)
Ministerio de Educación y Ciencia (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Oxidation
Hydrogen peroxide
Catalyst
Activated carbon
Iron
Phenol
topic Oxidation
Hydrogen peroxide
Catalyst
Activated carbon
Iron
Phenol
description [EN] Different activated carbon-supported Fe catalysts have been prepared and tested in CWPO of phenol. Three well characterized activated carbons and two iron precursors (iron nitrate and iron pentacarbonyl) have been used. The behavior of these catalysts in CWPO has been related with their porous structure, surface composition, in terms of oxygen groups and Fe distribution onto the catalyst particles. The catalysts with a more uniform distribution of Fe showed a higher oxidation activity than the ones with an internal (egg-yolk type) or external (egg-shell type) distribution. These last provoke a faster decomposition of H2O2 mainly to O2, non-reactive at the mild reaction temperature used (50º C). No significant differences were observed from the iron precursors. Complete conversion of phenol and almost 80 % mineralization were obtained in less than 2 hours with the best catalyst. The residual by-products consisted in short-chain organic acids without significance in terms of toxicity. Fe leaching was observed in all the cases which can be mainly attributed to the presence of oxalic acid as oxidation by-product, refractory to the CWPO process investigated. The intensity of Fe leaching was related with the concentration of oxalic acid
publishDate 2009
dc.date.none.fl_str_mv 2009
2024
2024
2024
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/10261/345841
url http://hdl.handle.net/10261/345841
dc.language.none.fl_str_mv Inglés
Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MEC//CTM2007-60577
info:eu-repo/grantAgreement/MEC//CTQ2007-1661748
info:eu-repo/grantAgreement/MEC//CTQ2005-02284
https://doi.org/10.1016/j.apcatb.2008.07.023
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier BV
publisher.none.fl_str_mv Elsevier BV
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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