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dc.contributor.authorNavarro, Patricia
dc.contributor.authorZapata, Jean-Pier
dc.contributor.authorGotor, Gemma
dc.contributor.authorGonzález Olmos, Rafael
dc.contributor.authorGómez López, Vicente Manuel
dc.date.accessioned2021-03-05T17:16:16Z
dc.date.available2021-03-05T17:16:16Z
dc.date.issued2019
dc.identifier.citationPatricia Navarro, Jean Pier Zapata, Gemma Gotor, Rafael Gonzalez-Olmos, Vicente M. Gómez-López; Degradation of malachite green by a pulsed light/H2O2 process. Water Sci Technol 15 January 2019; 79 (2): 260–269. doi: https://doi.org/10.2166/wst.2019.041es
dc.identifier.issn0273-1223
dc.identifier.urihttp://hdl.handle.net/10952/4829
dc.description.abstractPulsed light (PL) is a type of photonic technology characterized by intense short light pulses that enhance the speed of photochemical reactions and might be useful as light source in advanced oxidation processes (AOPs). This work aimed to test PL as light source for the degradation of the dye malachite green by combining PL with H2O2. To this, the effect of dye and H2O2 concentrations and pH on the degradation rate of malachite green was studied and a degradation pathway was proposed. Dye degradation followed a pseudo-first order kinetics; it increased with low initial dye concentration, high H2O2 concentration and low pH. Complete decolourization was achieved after 35 light pulses (75 J/cm2), with a degradation rate of 0.0710 cm2/J. The degradation mechanism was initiated by the attack of hydroxyl radicals to the central carbon of malachite green generating 4-(dimethylamino)benzophenone (DLBP) followed by the addition of hydroxyl radicals to the non-amino aromatic ring of DLBP and the demethylation of the amino group. Results indicate that PL technology has potential to be implemented to decrease the environmental impact of dyeing industries.es
dc.language.isoenes
dc.publisherIWA Publishinges
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectPulsed lightes
dc.subjectAdvanced oxidation processes
dc.subjectWastewateres
dc.subjectMalachite greenes
dc.subjectTextile dyees
dc.titleDegradation of malachite green by a pulsed light/H2O2 processes
dc.typearticlees
dc.rights.accessRightsopenAccesses
dc.relation.projectIDThis work was supported by Universidad Católica Murcia [grant number PMAFI/29/14]. R. Gonzalez-Olmos thanks to “Obra Social La Caixa” for receiving funding to carry out this research through the Intensification Research Fellowship 2017-URL-IR2Q-023. GESPA research group has been recognized as Consolidated Research Group by the Catalan Government with code 2017-SGR-1016.es
dc.journal.titleWater Science & Technologyes
dc.volume.number79es
dc.issue.number2es
dc.description.disciplineCiencias Ambientaleses
dc.identifier.doi10.2166/wst.2019.041es


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