Elimination of sulfamethoxazole by anodic oxidation using mixed metal oxide anodes

dc.contributor.authorLauzurique, Yeney
dc.contributor.authorMiralles-Cuevas, Sara
dc.contributor.authorGodoy, Mariel
dc.contributor.authorSepulveda, Pamela
dc.contributor.authorBollo, Soledad
dc.contributor.authorCabrera-Reina, Alejandro
dc.contributor.authorHuilinir, Cesar
dc.contributor.authorMalato, Sixto
dc.contributor.authorOller, Isabel
dc.contributor.authorSalazar-Gonzalez, Ricardo
dc.date.accessioned2025-01-20T20:08:35Z
dc.date.available2025-01-20T20:08:35Z
dc.date.issued2023
dc.description.abstractThe degradation of sulfamethoxazole (SMX) was studied by anodic oxidation (AO) process using mixed metal oxide (MMO) electrodes with different Ru/Ir ratios. Each electrode was characterized morphological and electrochemically. The electrolyzes were performed in NaCl and Na2SO4 applying two current densities (10 and 50 mA cm-2). The electrode with the highest composition of Ir, Ru/Ir (30/70), showed greater SMX degradation and generation of oxidizing species and was used to treat the antibiotic by AO and AO assisted by solar energy in natural water and actual municipal wastewater effluents.The efficiency in SMX degradation depends on the type of electrode used (MMO) and electrolytic medium. All MMO electrodes, reached almost total degradation of SMX in chloride medium. However, 60 % degradation of SMX in sulfate medium was achieved with anode with lower Ru/Ir ratio. Additionally, degradation of SMX in complex matrices can be successfully carried out by solar-assisted AO and AO processes, without the need to adjust the pH, at room temperature and using anode with lower Ru/Ir ratio. Finally, the AO process assisted by solar energy reduced electrolysis times and the cell's potential, leading to lower energy consumption.
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.jwpe.2023.103922
dc.identifier.issn2214-7144
dc.identifier.urihttps://doi.org/10.1016/j.jwpe.2023.103922
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/91918
dc.identifier.wosidWOS:001028244900001
dc.language.isoen
dc.revistaJournal of water process engineering
dc.rightsacceso restringido
dc.subjectSulfamethoxazole
dc.subjectAnodic oxidation
dc.subjectRu
dc.subjectIr ratios
dc.subjectElectrodes
dc.subjectSolar energy
dc.subject.ods06 Clean Water and Sanitation
dc.subject.odspa06 Agua limpia y saneamiento
dc.titleElimination of sulfamethoxazole by anodic oxidation using mixed metal oxide anodes
dc.typeartículo
dc.volumen54
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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