Microwave-assisted sol-gel synthesis of an Au-TiO2 photoanode for the advanced oxidation of paracetamol as model pharmaceutical pollutant

An Au-TiO2 photoanode on carbon cloth has been synthesized by microwave-assisted sol-gel method to treat paracetamol solutions at pH 3.0 by photocatalysis (PC), electro-oxidation (EO), photoelectrocatalysis with UVA light (PEC), solar PEC (SPEC) and hybrid methods with photoelectro-Fenton under UVA...

Descripción completa

Detalles Bibliográficos
Autores: Hernández, Rafael, Olvera-Rodríguez, Isidoro, Guzmán, Carlos, Medel, Alejandro, Escobar-Alarcón, Luis, Brillas, Enric, Sirés Sadornil, Ignacio, Esquivel Escalante, Karen
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2018
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/152984
Acceso en línea:https://hdl.handle.net/2445/152984
Access Level:acceso abierto
Palabra clave:Fotocatàlisi
Oxidació electroquímica
Medicaments
Photocatalysis
Electrolytic oxidation
Drugs
id ES_2c1615c021d818e5bc2adbd26db3659b
oai_identifier_str oai:recercat.cat:2445/152984
network_acronym_str ES
network_name_str España
repository_id_str
spelling Microwave-assisted sol-gel synthesis of an Au-TiO2 photoanode for the advanced oxidation of paracetamol as model pharmaceutical pollutantHernández, RafaelOlvera-Rodríguez, IsidoroGuzmán, CarlosMedel, AlejandroEscobar-Alarcón, LuisBrillas, EnricSirés Sadornil, IgnacioEsquivel Escalante, KarenFotocatàlisiOxidació electroquímicaMedicamentsPhotocatalysisElectrolytic oxidationDrugsAn Au-TiO2 photoanode on carbon cloth has been synthesized by microwave-assisted sol-gel method to treat paracetamol solutions at pH 3.0 by photocatalysis (PC), electro-oxidation (EO), photoelectrocatalysis with UVA light (PEC), solar PEC (SPEC) and hybrid methods with photoelectro-Fenton under UVA (PEC+PEF) and sunlight (SPEC+SPEF) irradiation at constant anodic potential (Ean). The photoanode has been characterized by XRD, Raman spectroscopy, HRTEM and SEM-EDS. The counter electrode was a 316L stainless steel plate, which was replaced by an air-diffusion electrode for H2O2 generation in hybrid treatments. The most powerful process was SPEC+SPEF, yielding total paracetamol removal in less than 30 min and 24% mineralization after 180 min, at Ean = +0.82 V. The paracetamol decay followed a pseudo-first-order kinetics in PEC. A lower rate constant was obtained upon increase of pharmaceutical concentration, showing good linear fit using a Langmuir-Hinshelwood model.Elsevier B.V.2020202020182020info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersion5 p.application/pdfhttps://hdl.handle.net/2445/152984Articles publicats en revistes (Ciència dels Materials i Química Física)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésVersió postprint del document publicat a: https://doi.org/10.1016/j.elecom.2018.09.009Electrochemistry Communications, 2018, vol. 96, p. 42-46https://doi.org/10.1016/j.elecom.2018.09.009cc-by-nc-nd (c) Elsevier B.V., 2018http://creativecommons.org/licenses/by-nc-nd/3.0/esinfo:eu-repo/semantics/openAccessoai:recercat.cat:2445/1529842026-05-29T05:05:01Z
dc.title.none.fl_str_mv Microwave-assisted sol-gel synthesis of an Au-TiO2 photoanode for the advanced oxidation of paracetamol as model pharmaceutical pollutant
title Microwave-assisted sol-gel synthesis of an Au-TiO2 photoanode for the advanced oxidation of paracetamol as model pharmaceutical pollutant
spellingShingle Microwave-assisted sol-gel synthesis of an Au-TiO2 photoanode for the advanced oxidation of paracetamol as model pharmaceutical pollutant
Hernández, Rafael
Fotocatàlisi
Oxidació electroquímica
Medicaments
Photocatalysis
Electrolytic oxidation
Drugs
title_short Microwave-assisted sol-gel synthesis of an Au-TiO2 photoanode for the advanced oxidation of paracetamol as model pharmaceutical pollutant
title_full Microwave-assisted sol-gel synthesis of an Au-TiO2 photoanode for the advanced oxidation of paracetamol as model pharmaceutical pollutant
title_fullStr Microwave-assisted sol-gel synthesis of an Au-TiO2 photoanode for the advanced oxidation of paracetamol as model pharmaceutical pollutant
title_full_unstemmed Microwave-assisted sol-gel synthesis of an Au-TiO2 photoanode for the advanced oxidation of paracetamol as model pharmaceutical pollutant
title_sort Microwave-assisted sol-gel synthesis of an Au-TiO2 photoanode for the advanced oxidation of paracetamol as model pharmaceutical pollutant
dc.creator.none.fl_str_mv Hernández, Rafael
Olvera-Rodríguez, Isidoro
Guzmán, Carlos
Medel, Alejandro
Escobar-Alarcón, Luis
Brillas, Enric
Sirés Sadornil, Ignacio
Esquivel Escalante, Karen
author Hernández, Rafael
author_facet Hernández, Rafael
Olvera-Rodríguez, Isidoro
Guzmán, Carlos
Medel, Alejandro
Escobar-Alarcón, Luis
Brillas, Enric
Sirés Sadornil, Ignacio
Esquivel Escalante, Karen
author_role author
author2 Olvera-Rodríguez, Isidoro
Guzmán, Carlos
Medel, Alejandro
Escobar-Alarcón, Luis
Brillas, Enric
Sirés Sadornil, Ignacio
Esquivel Escalante, Karen
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Fotocatàlisi
Oxidació electroquímica
Medicaments
Photocatalysis
Electrolytic oxidation
Drugs
topic Fotocatàlisi
Oxidació electroquímica
Medicaments
Photocatalysis
Electrolytic oxidation
Drugs
description An Au-TiO2 photoanode on carbon cloth has been synthesized by microwave-assisted sol-gel method to treat paracetamol solutions at pH 3.0 by photocatalysis (PC), electro-oxidation (EO), photoelectrocatalysis with UVA light (PEC), solar PEC (SPEC) and hybrid methods with photoelectro-Fenton under UVA (PEC+PEF) and sunlight (SPEC+SPEF) irradiation at constant anodic potential (Ean). The photoanode has been characterized by XRD, Raman spectroscopy, HRTEM and SEM-EDS. The counter electrode was a 316L stainless steel plate, which was replaced by an air-diffusion electrode for H2O2 generation in hybrid treatments. The most powerful process was SPEC+SPEF, yielding total paracetamol removal in less than 30 min and 24% mineralization after 180 min, at Ean = +0.82 V. The paracetamol decay followed a pseudo-first-order kinetics in PEC. A lower rate constant was obtained upon increase of pharmaceutical concentration, showing good linear fit using a Langmuir-Hinshelwood model.
publishDate 2018
dc.date.none.fl_str_mv 2018
2020
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/152984
url https://hdl.handle.net/2445/152984
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Versió postprint del document publicat a: https://doi.org/10.1016/j.elecom.2018.09.009
Electrochemistry Communications, 2018, vol. 96, p. 42-46
https://doi.org/10.1016/j.elecom.2018.09.009
dc.rights.none.fl_str_mv cc-by-nc-nd (c) Elsevier B.V., 2018
http://creativecommons.org/licenses/by-nc-nd/3.0/es
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by-nc-nd (c) Elsevier B.V., 2018
http://creativecommons.org/licenses/by-nc-nd/3.0/es
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 5 p.
application/pdf
dc.publisher.none.fl_str_mv Elsevier B.V.
publisher.none.fl_str_mv Elsevier B.V.
dc.source.none.fl_str_mv Articles publicats en revistes (Ciència dels Materials i Química Física)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869405204829437952
score 15,808905

Similares en LA Referencia