On the performance of distinct electrochemical and solar-based advanced oxidation processes to mineralize the insecticide imidacloprid

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Federal de São Carlos (UFSCar)-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorFernandes, Carlos H. M.-
Autor(es): dc.creatorSilva, Bianca F. [UNESP]-
Autor(es): dc.creatorAquino, Jose M.-
Data de aceite: dc.date.accessioned2022-02-22T00:59:28Z-
Data de disponibilização: dc.date.available2022-02-22T00:59:28Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-07-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.chemosphere.2021.130010-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/210313-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/210313-
Descrição: dc.descriptionWater contamination by contaminants of emerging concern is one of the main challenges to be solved by our desired sustainable society. In the same time, different technologies for water treatment are becoming enough mature to be implemented. In this work, two different advanced oxidation processes (AOP) were investigated: i) electrochemical processes (electrochemical, photoassisted electrochemical, electro Fered-Fenton, and photo-electro Fered-Fenton - PEF-Fered) using a BDD and DSA (R) electrodes under UVA and UVC irradiation (9 W) and ii) solar-based AOP using four distinct oxidants (HOCl, H2O2, S2O82-, HSO5-) in the presence or absence of Fe2+ ions to oxidize and mineralize imidacloprid (IMD: 50 mg L-1) containing solutions. The PEF-Fered (1.0 mM Fe2+ and 50 mg L-1 h(-1) H2O2) under UVA or UVC irradiation and HOCl/UVC (NaCl 17 mM) processes using a BDD and DSA (R) electrodes (10 mA cm(-2)), respectively, performed equally well to completely oxidize and mineralize (similar to 90%) IMD at the expense of only similar to 0.3 kWh g(-1). Low amounts and highly oxidized byproducts identified through liquid chromatography tandem mass spectrometry were observed for the HOCl/UVC process using a DSA (R) electrode. Concerning the solar-based AOP, all assessed oxidants (4 mM h(-1)) successfully oxidized IMD within 3 h of treatment, whereas only H2O2 and HOCl led to significant (similar to 60%) TOC abatement after 6 h treatment. The use of Fe2+ (0.5 or 1.0 mM) had no significant improvement in the oxidation and mineralization of IMD. (C) 2021 Elsevier Ltd. All rights reserved.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionUniv Fed Sao Carlos, Dept Quim, BR-13565905 Sao Carlos, SP, Brazil-
Descrição: dc.descriptionUniv Estadual Paulista, Inst Quim Araraquara, Dept Quim Analit, BR-14800900 Araraquara, SP, Brazil-
Descrição: dc.descriptionUniv Estadual Paulista, Inst Quim Araraquara, Dept Quim Analit, BR-14800900 Araraquara, SP, Brazil-
Descrição: dc.descriptionCNPq: 305943/2020-0-
Descrição: dc.descriptionCAPES: 001-
Descrição: dc.descriptionFAPESP: 2019/07943-4-
Formato: dc.format11-
Idioma: dc.languageen-
Publicador: dc.publisherElsevier B.V.-
Relação: dc.relationChemosphere-
???dc.source???: dc.sourceWeb of Science-
Palavras-chave: dc.subjectOxidation byproducts-
Palavras-chave: dc.subjectSynthetic organic compounds-
Palavras-chave: dc.subjectHydroxyl radical-
Palavras-chave: dc.subjectHeterogeneous reaction-
Palavras-chave: dc.subjectHomogeneous reaction-
Título: dc.titleOn the performance of distinct electrochemical and solar-based advanced oxidation processes to mineralize the insecticide imidacloprid-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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