Mostrar o rexistro simple do ítem
Solar-Assisted Photodegradation of Pesticides Over Pellet-Shaped TiO2-Kaolin Catalytic Macrocomposites at Semi-pilot-Plant Scale: Elucidation of Photo-Mechanisms and Water Matrix Effect
dc.contributor.author | Jiménez Bautista, Karla Cecilia | |
dc.contributor.author | Gascó, Antonio | |
dc.contributor.author | Ramos, Daniel R. | |
dc.contributor.author | Palomo, E. | |
dc.contributor.author | Muelas-Ramos, Virginia | |
dc.contributor.author | Canle, Moisés | |
dc.contributor.author | Hermosilla, Daphne | |
dc.contributor.author | Bahamonde Santos, Ana María | |
dc.date.accessioned | 2024-06-11T15:34:18Z | |
dc.date.available | 2024-06-11T15:34:18Z | |
dc.date.issued | 2023-10-11 | |
dc.identifier.citation | K. Jiménez-Bautista, A. Gascó, D.R. Ramos, E. Palomo, V. Muelas-Ramos, M. Canle, D. Hermosilla, A. Bahamonde, Solar-assisted photodegradation of pesticides over pellet-shaped TiO2-kaolin catalytic macrocomposites at semi-pilot-plant scale: Elucidation of photo-mechanisms and water matrix effect, Journal of Cleaner Production, Volume 426, 2023, 139203, ISSN 0959-6526, https://doi.org/10.1016/j.jclepro.2023.139203. (https://www.sciencedirect.com/science/article/pii/S0959652623033619) | es_ES |
dc.identifier.issn | 0959-6526 | |
dc.identifier.uri | http://hdl.handle.net/2183/36857 | |
dc.description.abstract | [Abstract] The behavior of novel pellet-shaped bulky titania-kaolin photocatalysts is herein evaluated for its application in the solar-assisted photocatalytic treatment of a bio-recalcitrant pesticide mix (imidacloprid, pyrimethanil and methomyl) in solar lab-scale and semi-pilot scale raceway pond photoreactors. The photocatalyst consists of 1 cm long titania-kaolin macro-composites that combine some advantages of both nanoparticulate and supported catalysts without being either. This opening the opportunity to extend the use of this photocatalyst to complex wastewater effluents. In addition, their stability and reusability potential was also evaluated, and reactive species leading to the solar-degradation of each pesticide were also identified using radical scavengers. Total removal of pesticides (2 mg L−1 each) with an optimal pellets dosage of 34.8 g L−1 was addressed, whether in ultrapure water (180–270 min of solar irradiation) or in two basic pH Municipal Wastewater Treatment Plant (MWWTP) effluents (≤300 min of solar irradiation) where methomyl was always the most recalcitrant pesticide. Lower Total Organic Carbon (TOC) removal (≈53–56%) was also found under the effect of these complex MWWTP effluents than in ultrapure water (>60%). Those results are very promising when comparing to the almost negligible TOC removal achieved with the Titania powder under basic MWWTP effluents due to the strong effect of particle aggregation. Very good photocatalyst stability and durability was shown along three consecutive cycles after applying a low-cost recovery protocol consisting of several washing and drying cycles without addressing a significant photoefficiency loss (TOC≈60-56%). The application of scavengers revealed that hydroxyl radical generated from photoinduced holes was the dominant species in the degradation of pyrimethanil and methomyl whereas reactive oxygen species formed from conduction band electrons were mainly involved in the photo-oxidation of imidacloprid. | es_ES |
dc.description.sponsorship | This research has been developed in the framework of Projects PID2020-114918RB-I00 (PHOTOPREBIO), funded by MCIN/AEI/10.13039/501100011033, Project PID2021-124021OB-I00 (URBRAINTREAT), funded by MCIN/AEI/10.13039/501100011033 and “ERDF: A way of making Europe”, and project TED2021-132667B–I00, funded by the EU NextGeneration EU/PRTR through project MCIN/AEI/10.13039/501100011033. M.C. and D.R.R. acknowledge financial support from “Xunta de Galicia” (Spain, Project GPC ED431B 2020/52), and D.R.R. acknowledges Universidade da Coruña for a Margarita Salas contract | es_ES |
dc.description.sponsorship | Xunta de Galicia; GPC ED431B 2020/52 | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Elsevier | es_ES |
dc.relation | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-114918RB-I00/ES/DESARROLLO Y APLICACION DE PRE-TRATAMIENTOS AVANZADOS DE FOTOCATALISIS PARA LA MEJORA DE LA EFICIENCIA DE LAS TECNOLOGIAS DE TRATAMIENTO DE AGUAS RESIDUALES CON BASE BIOLOGICA/ | es_ES |
dc.relation | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2021-124021OB-I00/ES/ESTRATEGIAS EFICIENTES DE GESTION Y TRATAMIENTO DE AGUAS PLUVIALES URBANAS PARA EL DESARROLLO DE CIUDADES RESILIENTES Y SOSTENIBLES/ | es_ES |
dc.relation | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/TED2021-132667B–I00/ES/Acoplamiento entre soluciones basadas en la naturaleza y procesos de oxidación avanzada para la economía circular del agua/ | es_ES |
dc.relation.uri | https://doi.org/10.1016/j.jclepro.2023.139203 | es_ES |
dc.rights | Atribución-NoComercial-SinDerivadas 4.0 Internacional | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Immobilized catalysts | es_ES |
dc.subject | Solar photoreactors | es_ES |
dc.subject | Solar raceway | es_ES |
dc.subject | Real water matrix | es_ES |
dc.subject | Scavengers | es_ES |
dc.subject | Reactive species | es_ES |
dc.title | Solar-Assisted Photodegradation of Pesticides Over Pellet-Shaped TiO2-Kaolin Catalytic Macrocomposites at Semi-pilot-Plant Scale: Elucidation of Photo-Mechanisms and Water Matrix Effect | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.access | info:eu-repo/semantics/openAccess | es_ES |
UDC.journalTitle | Journal of Cleaner Production | es_ES |
UDC.issue | 426 (10 November 2023) | es_ES |
UDC.startPage | 139203 | es_ES |
dc.identifier.doi | 10.1016/j.jclepro.2023.139203 |
Ficheiros no ítem
Este ítem aparece na(s) seguinte(s) colección(s)
-
GI-REACT! - Artigos [106]