Synergism between anodic oxidation with diamond anodes and heterogeneous catalytic photolysis for the treatment of pharmaceutical pollutants

The mineralization of diclofenac and acetaminophen has been studied by single anodic oxidation with boron-doped diamond (AO-BDD) using an undivided electrolysis cell, by single heterogeneous catalytic photolysis with titanium dioxide (HCP-TiO) and by the combination of both advanced oxidation proces...

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Autores: Peralta-Hernández, Juan Manuel, Rosa Juárez, Catalina de la, Buzo-Muñoz, Vianey, Páramo-Vargas, Javier, Cañizares Cañizares, Pablo, Rodrigo Rodrigo, Manuel Andrés
Tipo de recurso: artículo
Fecha de publicación:2016
País:España
Institución:Universidad de Castilla-La Mancha
Repositorio:RUIdeRA. Repositorio Institucional de la UCLM
OAI Identifier:oai:ruidera.uclm.es:10578/29173
Acceso en línea:http://hdl.handle.net/10578/29173
Access Level:acceso abierto
Palabra clave:Ingeniería Química
Oxidación anódica
Fotólisis catalítica heterogénea
Diclofenaco
Paracetamol
Diamante dopado con boro
Dióxido de titanio
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spelling Synergism between anodic oxidation with diamond anodes and heterogeneous catalytic photolysis for the treatment of pharmaceutical pollutantsPeralta-Hernández, Juan ManuelRosa Juárez, Catalina de laBuzo-Muñoz, VianeyPáramo-Vargas, JavierCañizares Cañizares, PabloRodrigo Rodrigo, Manuel AndrésIngeniería QuímicaOxidación anódicaFotólisis catalítica heterogéneaDiclofenacoParacetamolDiamante dopado con boroDióxido de titanioThe mineralization of diclofenac and acetaminophen has been studied by single anodic oxidation with boron-doped diamond (AO-BDD) using an undivided electrolysis cell, by single heterogeneous catalytic photolysis with titanium dioxide (HCP-TiO) and by the combination of both advanced oxidation processes. The results show that mineralization can be obtained with either single technology. The type of functional groups of the pollutant does not influence the results of the single AO-BDD process, but it has a significant influence on the results obtained with HCP-TiO. A clear synergistic effect appears when both processes are combined showing improvements in the oxidation rate of more than 50% for diclofenac and nearly 200% for acetaminophen at the highest current exerted. Results obtained are explained in terms of the production of oxidants on the surface of BDD (primarily peroxodisulfate) and the later homogeneous catalytic light decomposition of these oxidants in the bulk. This mechanism is consistent with the larger improvement observed at higher current densities, for which the production of oxidants is promoted.La mineralización de diclofenaco y acetaminofén se ha estudiado por oxidación anódica simple con diamante dopado con boro (AO-BDD) usando una celda de electrólisis no dividida , por fotólisis catalítica heterogénea simple con dióxido de titanio (HCP-TiO) y por la combinación de ambos procesos de oxidación avanzados . Los resultados muestran que la mineralización se puede obtener con cualquiera de las dos tecnologías. El tipo de grupos funcionales del contaminante no influye en los resultados del proceso único AO-BDD, pero tiene una influencia significativa en los resultados obtenidos con HCP-TiO. Aparece un claro efecto sinérgico cuando ambos procesos se combinan mostrando mejoras en la tasa de oxidación de más del 50% para el diclofenaco y cerca del 200% para el acetaminofeno a la corriente más alta ejercida. Los resultados obtenidos se explican en términos de la producción de oxidantes en la superficie de BDD (principalmente peroxodisulfato) y la posterior descomposición ligera catalítica homogénea de estos oxidantes en la masa. Este mecanismo es consistente con la mayor mejora observada a mayores densidades de corriente, por lo que se promueve la producción de oxidantes.Elsevier202120212016info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttp://hdl.handle.net/10578/29173reponame:RUIdeRA. Repositorio Institucional de la UCLMinstname:Universidad de Castilla-La ManchaInglésinfo:eu-repo/semantics/openAccessoai:ruidera.uclm.es:10578/291732026-05-27T07:36:41Z
dc.title.none.fl_str_mv Synergism between anodic oxidation with diamond anodes and heterogeneous catalytic photolysis for the treatment of pharmaceutical pollutants
title Synergism between anodic oxidation with diamond anodes and heterogeneous catalytic photolysis for the treatment of pharmaceutical pollutants
spellingShingle Synergism between anodic oxidation with diamond anodes and heterogeneous catalytic photolysis for the treatment of pharmaceutical pollutants
Peralta-Hernández, Juan Manuel
Ingeniería Química
Oxidación anódica
Fotólisis catalítica heterogénea
Diclofenaco
Paracetamol
Diamante dopado con boro
Dióxido de titanio
title_short Synergism between anodic oxidation with diamond anodes and heterogeneous catalytic photolysis for the treatment of pharmaceutical pollutants
title_full Synergism between anodic oxidation with diamond anodes and heterogeneous catalytic photolysis for the treatment of pharmaceutical pollutants
title_fullStr Synergism between anodic oxidation with diamond anodes and heterogeneous catalytic photolysis for the treatment of pharmaceutical pollutants
title_full_unstemmed Synergism between anodic oxidation with diamond anodes and heterogeneous catalytic photolysis for the treatment of pharmaceutical pollutants
title_sort Synergism between anodic oxidation with diamond anodes and heterogeneous catalytic photolysis for the treatment of pharmaceutical pollutants
dc.creator.none.fl_str_mv Peralta-Hernández, Juan Manuel
Rosa Juárez, Catalina de la
Buzo-Muñoz, Vianey
Páramo-Vargas, Javier
Cañizares Cañizares, Pablo
Rodrigo Rodrigo, Manuel Andrés
author Peralta-Hernández, Juan Manuel
author_facet Peralta-Hernández, Juan Manuel
Rosa Juárez, Catalina de la
Buzo-Muñoz, Vianey
Páramo-Vargas, Javier
Cañizares Cañizares, Pablo
Rodrigo Rodrigo, Manuel Andrés
author_role author
author2 Rosa Juárez, Catalina de la
Buzo-Muñoz, Vianey
Páramo-Vargas, Javier
Cañizares Cañizares, Pablo
Rodrigo Rodrigo, Manuel Andrés
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Ingeniería Química
Oxidación anódica
Fotólisis catalítica heterogénea
Diclofenaco
Paracetamol
Diamante dopado con boro
Dióxido de titanio
topic Ingeniería Química
Oxidación anódica
Fotólisis catalítica heterogénea
Diclofenaco
Paracetamol
Diamante dopado con boro
Dióxido de titanio
description The mineralization of diclofenac and acetaminophen has been studied by single anodic oxidation with boron-doped diamond (AO-BDD) using an undivided electrolysis cell, by single heterogeneous catalytic photolysis with titanium dioxide (HCP-TiO) and by the combination of both advanced oxidation processes. The results show that mineralization can be obtained with either single technology. The type of functional groups of the pollutant does not influence the results of the single AO-BDD process, but it has a significant influence on the results obtained with HCP-TiO. A clear synergistic effect appears when both processes are combined showing improvements in the oxidation rate of more than 50% for diclofenac and nearly 200% for acetaminophen at the highest current exerted. Results obtained are explained in terms of the production of oxidants on the surface of BDD (primarily peroxodisulfate) and the later homogeneous catalytic light decomposition of these oxidants in the bulk. This mechanism is consistent with the larger improvement observed at higher current densities, for which the production of oxidants is promoted.
publishDate 2016
dc.date.none.fl_str_mv 2016
2021
2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10578/29173
url http://hdl.handle.net/10578/29173
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:RUIdeRA. Repositorio Institucional de la UCLM
instname:Universidad de Castilla-La Mancha
instname_str Universidad de Castilla-La Mancha
reponame_str RUIdeRA. Repositorio Institucional de la UCLM
collection RUIdeRA. Repositorio Institucional de la UCLM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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