Performance of Copper as a Catalyst for Fenton-like Processes in Highly Saline Solutions

[EN] The catalytic performance of copper in Fenton-like processes was investigated under conditions of elevated chloride concentrations. Model solutions were prepared containing four target pollutants (50 mg/L each), Cu (II) at 50 mg/L, and a stoichiometric dose of hydrogen peroxide sufficient for c...

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Autores: Orts, Xavier, Arévalo-Aguado, Jordi|||0000-0002-0669-0933, Arqués Sanz, Antonio|||0000-0001-8692-6979, Amat Payá, Ana María|||0000-0003-4218-2685, Santos-Juanes Jordá, Lucas|||0000-0001-5539-8341
Tipo de recurso: artículo
Fecha de publicación:2025
País:España
Institución:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/223154
Acceso en línea:https://riunet.upv.es/handle/10251/223154
Access Level:acceso abierto
Palabra clave:Fenton-like
Copper
Chlorides
Seawater
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spelling Performance of Copper as a Catalyst for Fenton-like Processes in Highly Saline SolutionsOrts, XavierArévalo-Aguado, Jordi|||0000-0002-0669-0933Arqués Sanz, Antonio|||0000-0001-8692-6979Amat Payá, Ana María|||0000-0003-4218-2685Santos-Juanes Jordá, Lucas|||0000-0001-5539-8341Fenton-likeCopperChloridesSeawater[EN] The catalytic performance of copper in Fenton-like processes was investigated under conditions of elevated chloride concentrations. Model solutions were prepared containing four target pollutants (50 mg/L each), Cu (II) at 50 mg/L, and a stoichiometric dose of hydrogen peroxide sufficient for complete oxidation of the organic matter. Chloride levels ranged from low concentrations to those representative of both synthetic and natural seawater (36 g/L NaCl). An increase in chloride concentration consistently led to greater pollutant removal efficiency. The influence of pH on process performance was also assessed in saline and real seawater matrices. An optimal pH range between 6 and 7 was identified in both cases, where the reactivity of copper-chloride complexes was maximized while the formation of insoluble, catalytically inactive copper species was suppressed. Monitoring of pH, soluble copper concentration, and hydrogen peroxide consumption supported the conclusion that real seawater provides the most favorable conditions for copper-chloride catalyzed Fenton-like reactions. These results demonstrate the high potential of copper-based advanced oxidation processes in saline environments, particularly in applications where traditional methods exhibit limited efficiency.The authors thank the financial support of the European Union Next Generation EU-Proyectos de Transicion Ecologica y Transicion Digital (TED2021-130994B-C32-ECOTRANSEAS) and Spanish Ministerio de Ciencia e Innovacion Plan Nacional de Investigacion (PID2021-126400OB-C31-AQUAENAGRI). Jordi Arévalo thanks Project AGROALNEXT/2022/041, funded by European Union NextGenerationEU (PRTR-C17) with the support of Ministerio de Ciencia e Innovación Spanish Government and Generalitat Valenciana.MDPI AGDepartamento de Ingeniería Textil y PapeleraEscuela Politécnica Superior de AlcoyGrupo de Procesos de Oxidación AvanzadaEuropean CommissionGeneralitat ValencianaAgencia Estatal de InvestigaciónRepositorio Institucional de la Universitat Politècnica de València Riunet20252025-05-23journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://riunet.upv.es/handle/10251/223154reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)InglésengAgencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023 PID2021-126400OB-C31 REVALORIZACION DE DIFERENTES AGUAS RESIDUALES MEDIANTE TECNOLOGIAS QUE PERMITAN MEJORAR EL NEXO AGUA-ENERGIA RENOVABLE-ALIMENTOSGeneralitat Valenciana https://doi.org/10.13039/501100003359 AGROALNEXT%2F2022%2F041Agencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 TED2021-130994B-C32open accesshttp://purl.org/coar/access_right/c_abf2Reconocimiento (by)http://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:riunet.upv.es:10251/2231542026-06-13T07:49:27Z
dc.title.none.fl_str_mv Performance of Copper as a Catalyst for Fenton-like Processes in Highly Saline Solutions
title Performance of Copper as a Catalyst for Fenton-like Processes in Highly Saline Solutions
spellingShingle Performance of Copper as a Catalyst for Fenton-like Processes in Highly Saline Solutions
Orts, Xavier
Fenton-like
Copper
Chlorides
Seawater
title_short Performance of Copper as a Catalyst for Fenton-like Processes in Highly Saline Solutions
title_full Performance of Copper as a Catalyst for Fenton-like Processes in Highly Saline Solutions
title_fullStr Performance of Copper as a Catalyst for Fenton-like Processes in Highly Saline Solutions
title_full_unstemmed Performance of Copper as a Catalyst for Fenton-like Processes in Highly Saline Solutions
title_sort Performance of Copper as a Catalyst for Fenton-like Processes in Highly Saline Solutions
dc.creator.none.fl_str_mv Orts, Xavier
Arévalo-Aguado, Jordi|||0000-0002-0669-0933
Arqués Sanz, Antonio|||0000-0001-8692-6979
Amat Payá, Ana María|||0000-0003-4218-2685
Santos-Juanes Jordá, Lucas|||0000-0001-5539-8341
author Orts, Xavier
author_facet Orts, Xavier
Arévalo-Aguado, Jordi|||0000-0002-0669-0933
Arqués Sanz, Antonio|||0000-0001-8692-6979
Amat Payá, Ana María|||0000-0003-4218-2685
Santos-Juanes Jordá, Lucas|||0000-0001-5539-8341
author_role author
author2 Arévalo-Aguado, Jordi|||0000-0002-0669-0933
Arqués Sanz, Antonio|||0000-0001-8692-6979
Amat Payá, Ana María|||0000-0003-4218-2685
Santos-Juanes Jordá, Lucas|||0000-0001-5539-8341
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Departamento de Ingeniería Textil y Papelera
Escuela Politécnica Superior de Alcoy
Grupo de Procesos de Oxidación Avanzada
European Commission
Generalitat Valenciana
Agencia Estatal de Investigación
Repositorio Institucional de la Universitat Politècnica de València Riunet
dc.subject.none.fl_str_mv Fenton-like
Copper
Chlorides
Seawater
topic Fenton-like
Copper
Chlorides
Seawater
description [EN] The catalytic performance of copper in Fenton-like processes was investigated under conditions of elevated chloride concentrations. Model solutions were prepared containing four target pollutants (50 mg/L each), Cu (II) at 50 mg/L, and a stoichiometric dose of hydrogen peroxide sufficient for complete oxidation of the organic matter. Chloride levels ranged from low concentrations to those representative of both synthetic and natural seawater (36 g/L NaCl). An increase in chloride concentration consistently led to greater pollutant removal efficiency. The influence of pH on process performance was also assessed in saline and real seawater matrices. An optimal pH range between 6 and 7 was identified in both cases, where the reactivity of copper-chloride complexes was maximized while the formation of insoluble, catalytically inactive copper species was suppressed. Monitoring of pH, soluble copper concentration, and hydrogen peroxide consumption supported the conclusion that real seawater provides the most favorable conditions for copper-chloride catalyzed Fenton-like reactions. These results demonstrate the high potential of copper-based advanced oxidation processes in saline environments, particularly in applications where traditional methods exhibit limited efficiency.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025-05-23
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://riunet.upv.es/handle/10251/223154
url https://riunet.upv.es/handle/10251/223154
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Agencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023 PID2021-126400OB-C31 REVALORIZACION DE DIFERENTES AGUAS RESIDUALES MEDIANTE TECNOLOGIAS QUE PERMITAN MEJORAR EL NEXO AGUA-ENERGIA RENOVABLE-ALIMENTOS
Generalitat Valenciana https://doi.org/10.13039/501100003359 AGROALNEXT%2F2022%2F041
Agencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 TED2021-130994B-C32
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reconocimiento (by)
http://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reconocimiento (by)
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI AG
publisher.none.fl_str_mv MDPI AG
dc.source.none.fl_str_mv reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
instname:Universitat Politècnica de València (UPV)
instname_str Universitat Politècnica de València (UPV)
reponame_str RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
collection RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
repository.name.fl_str_mv
repository.mail.fl_str_mv
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