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dc.creatorGrassi, Patrícia
dc.creatorDrumm, Fernanda Caroline
dc.creatorda Silveira Salla, Julia
dc.creatorSilvestri, Siara
dc.creatorda Boit Martinello, Katia
dc.creatorDotto, Guilherme Luiz
dc.creatorFoletto, Edson
dc.creatorJahn, Sérgio Luiz
dc.date.accessioned2020-07-21T15:42:31Z
dc.date.available2020-07-21T15:42:31Z
dc.date.issued2020
dc.identifier.urihttps://hdl.handle.net/11323/6758
dc.description.abstractIn this work, fly ash from a Brazilian thermal power plant was employed as a low-cost raw catalyst for Procion red degradation by photo-Fenton process. The ash was characterized by X-ray fluorescence (XRF), X-ray diffraction (XRD), nitrogen adsorption/desorption isotherms (BET), Fourier-transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) coupled with energy-dispersive X-ray spectrometry (EDX). The material had an iron content of 4.10 wt%, distributed homogeneously on the solid surface. The ash particles showed mainly spherical morphology between 0.5 and 20 µm. The catalyst presented promising activity, reaching 93% of dye decolorization at 60 min of reaction, and 85% of organic load removal at 240 min. The predominant oxidizing species involved on the degradation of dye molecules during the photo-Fenton reaction were the hydroxyl radicals (HO·). The material showed remarkable stability and reusability after five successive cycles of reuse. The reaction intermediates were identified by LC/MS analysis and a reaction pathway was proposed.spa
dc.language.isoengspa
dc.publisherUniversidad de la Costaspa
dc.rightsCC0 1.0 Universal*
dc.rights.urihttp://creativecommons.org/publicdomain/zero/1.0/*
dc.subjectFly ashspa
dc.subjectPhoto-Fentonspa
dc.subjectDegradationspa
dc.subjectDyespa
dc.subjectMechanismspa
dc.subjectScavengerspa
dc.titleInvestigation of the reaction pathway for degradation of emerging contaminant in water by photo-Fenton oxidation using fly ash as low-cost raw catalystspa
dc.typePreprintspa
dc.rights.accessrightsinfo:eu-repo/semantics/openAccessspa
dc.identifier.doihttps://doi.org/10.1007/s41742-020-00266-1
dc.type.hasversioninfo:eu-repo/semantics/draftspa


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CC0 1.0 Universal
Except where otherwise noted, this item's license is described as CC0 1.0 Universal