Degradation of contaminants of emerging concern in a secondary effluent using synthesized MOF-derived photoanodes: A comparative study between photo-, electro- and photoelectrocatalysis

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dc.contributor.authorCandia-Onfray, Christian
dc.contributor.authorIrikura, Kallyni [UNESP]
dc.contributor.authorCalzadilla, Wendy
dc.contributor.authorRojas, Susana
dc.contributor.authorBoldrin Zanoni, Maria Valnice [UNESP]
dc.contributor.authorSalazar, Ricardo
dc.contributor.institutionUSACh
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversidad de Valparaíso
dc.date.accessioned2023-07-29T13:36:18Z
dc.date.available2023-07-29T13:36:18Z
dc.date.issued2023-02-01
dc.description.abstractThree metal-organic framework (MOF)-based photoanodes were prepared by deposition on TiO2 nanotubes using Ti as substrate (Ti/TiO2NT): i) Ti/TiO2NT-Au@ZIF-8, ii) Ti/TiO2NT-Ru3(BTC)2, iii) Ti/TiO2NT-UiO-66(Zr)NH2. These photoanodes were characterized by FEG-SEM, EDX and DRX. The analyses showed a successful modification and a high homogeneity of the different MOFs on the Ti/TiO2NT surface. The photoanodes were studied in the degradation of Contaminants of Emerging Concern (CECs) in a spiked secondary effluent from a Municipal Wastewater Treatment Plant (MWWTP). Sodium diclofenac (DCF), sulfamethazine (SMT) and carbamazepine (CBZ) were used as CECs at low concentration (200 μg/L each CEC). The samples were preconcentrated using Solid Phase Extraction (SPE) and analyzed by a HPLC-DAD system. The MOF-based photoanodes exhibited a high photoelectrochemical (PEC) activity towards the oxidation of CECs, achieving up to 50%, 70% and 80% of removal using Ti/TiO2NT-Au@ZIF-8, Ti/TiO2NT-UiO-66(Zr)NH2, Ti/TiO2NT-Ru3(BTC), respectively. The influence of the generation of hydroxyl radical was then studied. The results indicate that PEC degradation using Ti/TiO2NT-Ru3(BTC)2 and Ti/TiO2NT-UiO-66(Zr)NH2 is more affected by the concentration of the radical.en
dc.description.affiliationLaboratorio de Electroquímica Del Medio Ambiente LEQMA Facultad de Química y Biología Universidad de Santiago de Chile USACh, Casilla 40, Correo 33
dc.description.affiliationSão Paulo State University (UNESP) Institute of Chemistry Department of Analytical Chemistry National Institute of Alternative Technologies for Detection Toxicological Assessment and Removal of Micropollutants and Radioactive (INCT-DATREM), Rua Professor Francisco Degni, 55, São Paulo
dc.description.affiliationEscuela de Ingeniería Industrial Facultad de Ingeniería Universidad de Valparaíso
dc.description.affiliationUnespSão Paulo State University (UNESP) Institute of Chemistry Department of Analytical Chemistry National Institute of Alternative Technologies for Detection Toxicological Assessment and Removal of Micropollutants and Radioactive (INCT-DATREM), Rua Professor Francisco Degni, 55, São Paulo
dc.description.sponsorshipDepartamento de Investigaciones Científicas y Tecnológicas, Universidad de Santiago de Chile
dc.description.sponsorshipFondo de Financiamiento de Centros de Investigación en Áreas Prioritarias
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipUniversidad de Santiago de Chile
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdFondo de Financiamiento de Centros de Investigación en Áreas Prioritarias: 15110019
dc.description.sponsorshipIdFAPESP: 2014/50945–4
dc.description.sponsorshipIdFAPESP: 2017/12790–7
dc.description.sponsorshipIdUniversidad de Santiago de Chile: 22142SG_POSTDOC PS-541
dc.description.sponsorshipIdCNPq: 465571/2014–0
dc.description.sponsorshipIdUniversidad de Santiago de Chile: USA2155_Dicyt
dc.identifierhttp://dx.doi.org/10.1016/j.chemosphere.2022.137683
dc.identifier.citationChemosphere, v. 315.
dc.identifier.doi10.1016/j.chemosphere.2022.137683
dc.identifier.issn1879-1298
dc.identifier.issn0045-6535
dc.identifier.scopus2-s2.0-85146002495
dc.identifier.urihttp://hdl.handle.net/11449/248164
dc.language.isoeng
dc.relation.ispartofChemosphere
dc.sourceScopus
dc.subjectContaminants of emerging concern
dc.subjectHydroxyl radical
dc.subjectMOF-Derived photoanode
dc.subjectPhotoelectrochemical degradation
dc.subjectSecondary effluent
dc.titleDegradation of contaminants of emerging concern in a secondary effluent using synthesized MOF-derived photoanodes: A comparative study between photo-, electro- and photoelectrocatalysisen
dc.typeArtigo
unesp.author.orcid0000-0003-0557-0734[4]
unesp.author.orcid0000-0003-2180-6022[6]

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