Attuning doped ZnO-based composites for an effective light-driven mineralization of pharmaceuticals via PMS activation

Water treatment technologies need to go beyond the current control of organic contaminants and ensure access to potable water. However, existing methods are still costly and often inadequate. In this context, novel catalysts that improve the mineralization degree of a wider range of pharmaceuticals...

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Authors: Bujaldón, Roger, Benamara, Majdi, Dhahri, Ramzi, Gómez, Elvira, Serrà , Albert
Format: article
Status:Published version
Publication Date:2024
Country:España
Institution:Universidad de Barcelona
Repository:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/215694
Online Access:https://hdl.handle.net/2445/215694
Access Level:Open access
Keyword:Fotocatàlisi
Contaminants
Depuració de l'aigua
Photocatalysis
Pollutants
Water purification
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spelling Attuning doped ZnO-based composites for an effective light-driven mineralization of pharmaceuticals via PMS activationBujaldón, RogerBenamara, MajdiDhahri, RamziGómez, ElviraSerrà , AlbertFotocatàlisiContaminantsDepuració de l'aiguaPhotocatalysisPollutantsWater purificationWater treatment technologies need to go beyond the current control of organic contaminants and ensure access to potable water. However, existing methods are still costly and often inadequate. In this context, novel catalysts that improve the mineralization degree of a wider range of pharmaceuticals through more benign and less consuming methodologies are highly sought after. ZnO, especially when doped, is a well-known semiconductor that also excels in the photocatalytic removal of persistent organic pollutants. In this study, we investigated the effect of doping ZnO nanoparticles with either copper, gallium or indium on the structure, morphology, photophysical properties and photocatalytic mineralization of pharmaceuticals. Their architecture was further improved through the fabrication of composites, pairing the best performing doped ZnO with either BaFe12O19 or nickel nanoparticles. Their suitability was tested on a complex 60-ppm multi-pollutant solution (tetracycline, levofloxacin and lansoprazole). The activation strategy combined photocatalysis with peroxymonosulfate (PMS) as an environmentally friendly source of highly oxidative sulfate radicals. The alliance of doped ZnO and BaFe<sub>12</sub>O<sub>19</sub> was particularly successful, resulting in magnetic microcroquette-shaped composites with excellent inter-component synergy. In fact, indium outperformed the other proposed metal dopants, exceeding 97% mineralization after 1 h and achieving complete elimination after 3 h. All composites excelled in terms of reusability, with no catalytic loss after 10 consecutive cycles and minimal leakage of metal ions, highlighting their applicability in water remediation.Elsevier Ltd2024info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/215694Articles publicats en revistes (Ciència dels Materials i Química Física)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.1016/j.chemosphere.2024.142127Chemosphere, 2024, vol. 357, num.2024, p. 1-11https://doi.org/10.1016/j.chemosphere.2024.142127cc-by-nc-nd (c) Bujaldón, Roger, et al., 2024http://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/2156942026-05-27T06:46:51Z
dc.title.none.fl_str_mv Attuning doped ZnO-based composites for an effective light-driven mineralization of pharmaceuticals via PMS activation
title Attuning doped ZnO-based composites for an effective light-driven mineralization of pharmaceuticals via PMS activation
spellingShingle Attuning doped ZnO-based composites for an effective light-driven mineralization of pharmaceuticals via PMS activation
Bujaldón, Roger
Fotocatàlisi
Contaminants
Depuració de l'aigua
Photocatalysis
Pollutants
Water purification
title_short Attuning doped ZnO-based composites for an effective light-driven mineralization of pharmaceuticals via PMS activation
title_full Attuning doped ZnO-based composites for an effective light-driven mineralization of pharmaceuticals via PMS activation
title_fullStr Attuning doped ZnO-based composites for an effective light-driven mineralization of pharmaceuticals via PMS activation
title_full_unstemmed Attuning doped ZnO-based composites for an effective light-driven mineralization of pharmaceuticals via PMS activation
title_sort Attuning doped ZnO-based composites for an effective light-driven mineralization of pharmaceuticals via PMS activation
dc.creator.none.fl_str_mv Bujaldón, Roger
Benamara, Majdi
Dhahri, Ramzi
Gómez, Elvira
Serrà , Albert
author Bujaldón, Roger
author_facet Bujaldón, Roger
Benamara, Majdi
Dhahri, Ramzi
Gómez, Elvira
Serrà , Albert
author_role author
author2 Benamara, Majdi
Dhahri, Ramzi
Gómez, Elvira
Serrà , Albert
author2_role author
author
author
author
dc.subject.none.fl_str_mv Fotocatàlisi
Contaminants
Depuració de l'aigua
Photocatalysis
Pollutants
Water purification
topic Fotocatàlisi
Contaminants
Depuració de l'aigua
Photocatalysis
Pollutants
Water purification
description Water treatment technologies need to go beyond the current control of organic contaminants and ensure access to potable water. However, existing methods are still costly and often inadequate. In this context, novel catalysts that improve the mineralization degree of a wider range of pharmaceuticals through more benign and less consuming methodologies are highly sought after. ZnO, especially when doped, is a well-known semiconductor that also excels in the photocatalytic removal of persistent organic pollutants. In this study, we investigated the effect of doping ZnO nanoparticles with either copper, gallium or indium on the structure, morphology, photophysical properties and photocatalytic mineralization of pharmaceuticals. Their architecture was further improved through the fabrication of composites, pairing the best performing doped ZnO with either BaFe12O19 or nickel nanoparticles. Their suitability was tested on a complex 60-ppm multi-pollutant solution (tetracycline, levofloxacin and lansoprazole). The activation strategy combined photocatalysis with peroxymonosulfate (PMS) as an environmentally friendly source of highly oxidative sulfate radicals. The alliance of doped ZnO and BaFe<sub>12</sub>O<sub>19</sub> was particularly successful, resulting in magnetic microcroquette-shaped composites with excellent inter-component synergy. In fact, indium outperformed the other proposed metal dopants, exceeding 97% mineralization after 1 h and achieving complete elimination after 3 h. All composites excelled in terms of reusability, with no catalytic loss after 10 consecutive cycles and minimal leakage of metal ions, highlighting their applicability in water remediation.
publishDate 2024
dc.date.none.fl_str_mv 2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/215694
url https://hdl.handle.net/2445/215694
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1016/j.chemosphere.2024.142127
Chemosphere, 2024, vol. 357, num.2024, p. 1-11
https://doi.org/10.1016/j.chemosphere.2024.142127
dc.rights.none.fl_str_mv cc-by-nc-nd (c) Bujaldón, Roger, et al., 2024
http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by-nc-nd (c) Bujaldón, Roger, et al., 2024
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier Ltd
publisher.none.fl_str_mv Elsevier Ltd
dc.source.none.fl_str_mv Articles publicats en revistes (Ciència dels Materials i Química Física)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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