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Photoelectrocatalyzed degradation of a pesticides mixture solution (chlorfenvinphos and bromacil) by WO3 nanosheets

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Photoelectrocatalyzed degradation of a pesticides mixture solution (chlorfenvinphos and bromacil) by WO3 nanosheets

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dc.contributor.author	Roselló Márquez, Gemma
dc.contributor.author	Fernández Domene, Ramón Manuel
dc.contributor.author	Sánchez Tovar, Rita
dc.contributor.author	García Carrión, Sergio
dc.contributor.author	Lucas Granados, Bianca
dc.contributor.author	Garcia-Anton, Jose
dc.date.accessioned	2021-01-12T14:41:56Z
dc.date.available	2021-01-12T14:41:56Z
dc.date.issued	2019
dc.identifier.citation	Roselló Márquez, Gemma Fernández Domene, Ramón Manuel Sánchez Tovar, Rita García Carrión, Sergio Lucas Granados, Bianca Garcia-Anton, Jose 2019 Photoelectrocatalyzed degradation of a pesticides mixture solution (chlorfenvinphos and bromacil) by WO3 nanosheets Science of the Total Environment 674 88 95
dc.identifier.uri	https://hdl.handle.net/10550/77015
dc.description.abstract	A photoelectrocatalyst consisting of WO3 nanosheets or nanorods has been synthesized by electrochemical anodization under hydrodynamic conditions, and has been used for the degradation of two toxic pesticides: chlorfenvinphos and bromacil. Nanostructures have been characterized by FESEM and Raman spectroscopy. Photoelectrochemical degradation tests have been carried out both for individual pesticide solutions and for a mixture solution, and the concentration evolution with time has been followed by UV-Vis spectrophotometry. For individual pesticides, pseudo-first order kinetic coefficients of 0.402 h−1 and 0.324 h−1 have been obtained for chlorfenvinphos and bromacil, respectively, while for the mixture solution, these kinetic coefficients have been 0.162 h−1 and 0.408 h−1. The change in behavior towards pesticide degradation depending on whether individual or mixture solutions were used might be indicative of a competitive process between the two pesticide molecules when interacting with the WO3 nanostructures surface or when approaching the semiconductor/electrolyte interface.
dc.language.iso	eng
dc.relation.ispartof	Science of the Total Environment, 2019, vol. 674, p. 88-95
dc.subject	Electroquímica
dc.subject	Nanoestructures
dc.title	Photoelectrocatalyzed degradation of a pesticides mixture solution (chlorfenvinphos and bromacil) by WO3 nanosheets
dc.type	journal article	es_ES
dc.date.updated	2021-01-12T14:41:57Z
dc.identifier.doi	10.1016/j.scitotenv.2019.04.150
dc.identifier.idgrec	138181
dc.rights.accessRights	open access	es_ES