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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

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.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.rights.uri	info:eu-repo/semantics/openAccess
dc.source	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.subject	Electroquímica
dc.subject	Nanoestructures
dc.title	Photoelectrocatalyzed degradation of a pesticides mixture solution (chlorfenvinphos and bromacil) by WO3 nanosheets
dc.type	info:eu-repo/semantics/article
dc.date.updated	2021-01-12T14:41:57Z
dc.identifier.doi	https://doi.org/10.1016/j.scitotenv.2019.04.150
dc.identifier.idgrec	138181