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Photoelectrocatalyzed degradation of organophosphorus pesticide fenamiphos using WO3 nanorods as photoanode

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Photoelectrocatalyzed degradation of organophosphorus pesticide fenamiphos using WO3 nanorods as photoanode

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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	Garcia-Anton, Jose
dc.date.accessioned	2021-01-12T15:48:04Z
dc.date.available	2021-01-12T15:48:04Z
dc.date.issued	2020
dc.identifier.citation	Roselló Márquez, Gemma Fernández Domene, Ramón Manuel Sánchez Tovar, Rita Garcia-Anton, Jose 2020 Photoelectrocatalyzed degradation of organophosphorus pesticide fenamiphos using WO3 nanorods as photoanode Chemosphere 246 125677
dc.identifier.uri	https://hdl.handle.net/10550/77019
dc.description.abstract	In this study, WO3 nanostructures were synthesized by the electrochemical anodization technique to use them on the degradation of persistent organic compounds such as the pesticide fenamiphos. The acids electrolyte used during the anodization were two different: 1.5 M H2SO4 - 0.05 M H2O2 and 1.5 M CH4O3S - 0.05 M H2O2. Once the samples have been manufactured, they have been subjected to different tests to analyze the properties of the nanostructures. With Field Emission Scanning Electron Microscopy (FE-SEM) the samples have been examined morphologically, their composition and crystallinity has been studied through Raman Spectroscopy and their photoelectrochemical behaviour by Photoelectrochemical Impedance Spectroscopy (PEIS). Finally, degradation tests have been carried out using the technique known as photoelectrocatalysis (PEC). The conditions that were applied in this technique were a potential of 1 VAg/AgCl and simulated solar illumination. The degradation process was monitored by UV-Visible and High-Performance liquid Chromatography (HPLC) to control the course of the experiment. The nanostructures obtained with 1.5 M CH4O3S - 0.05 M H2O2 electrolyte showed a better photoelectrochemical behaviour than nanostructures synthesized with 1.5 M H2SO4 - 0.05 M H2O2. The fenamiphos degradation was achieved at 2 h of experiment and the intermediate formation was noticed at 1 h of PEC experiment.
dc.language.iso	eng
dc.relation.ispartof	Chemosphere, 2020, vol. 246, p. 125677
dc.subject	Nanoestructures
dc.subject	Insecticides
dc.title	Photoelectrocatalyzed degradation of organophosphorus pesticide fenamiphos using WO3 nanorods as photoanode
dc.type	journal article	es_ES
dc.date.updated	2021-01-12T15:48:04Z
dc.identifier.doi	10.1016/j.chemosphere.2019.125677
dc.identifier.idgrec	138185
dc.rights.accessRights	open access	es_ES