Abatement of Naphthalene by Persulfate Activated by Goethite and Visible LED Light at Neutral pH: Effect of Common Ions and Organic Matter.

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dc.contributor.authorSánchez Yepes, Andrés
dc.contributor.authorLorenzo Fernández, David
dc.contributor.authorSáez González, Patricia
dc.contributor.authorRomero, Arturo
dc.contributor.authorSantos López, Aurora
dc.date.accessioned2023-06-22T11:13:35Z
dc.date.available2023-06-22T11:13:35Z
dc.date.issued2022
dc.description.abstractNaphthalene (NAP) has received particular attention due to its impact on the environment and human health, mandating its removal from water systems. In this work, the abatement of NAP in the aqueous phase was achieved using persulfate (PS) activated by Fe (III) and monochromatic LED light at a natural pH. The reaction was carried out in a slurry batch reactor using goethite as the Fe (III) source. The influence of the PS concentration, goethite concentration, irradiance, temperature and presence of organic matter, chloride, and bicarbonate on the abatement of NAP was studied. These variables were shown to have a different effect on NAP removal. The irradiance showed a maximum at 0.18 W⋅cm−2W·cm−2 where the photonic efficiency was the highest. As for the concentration of goethite and PS, the influence of the first one was negligible, whereas for PS, the best results were reached at 1.2 mM due to a self-inhibitory effect at higher concentrations. The temperature effect was also negative in the PS consumption. Regarding the effect of ions, chloride had no influence on NAP conversion but carbonates and humic acids were affected. Lastly, this treatment to remove NAP has proved to be an effective technique since minimum conversions of 0.92 at 180 min of reaction time were reached. Additionally, the toxicity of the final samples was decreased.
dc.description.departmentDepto. de Ingeniería Química y de Materiales
dc.description.facultyFac. de Ciencias Químicas
dc.description.refereedTRUE
dc.description.sponsorshipComunidad de Madrid
dc.description.sponsorshipMinisterio de Economía y Competitividad
dc.description.sponsorshipMinisterio de Ciencia, Innovación
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/78184
dc.identifier.doi10.3390/catal12070732
dc.identifier.issn2073-4344
dc.identifier.officialurlhttps://doi.org/10.3390/catal12070732
dc.identifier.urihttps://hdl.handle.net/20.500.14352/72225
dc.journal.titleCatalysts
dc.language.isoeng
dc.publisherMDPI
dc.relation.projectIDproject CARESOIL (S2018/EMT-4317)
dc.relation.projectIDproject PID2019-105934RB-I00
dc.relation.projectID(Ref. PRE2020-09319)
dc.rightsAtribución 3.0 España
dc.rights.accessRightsopen access
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/es/
dc.subject.cdu66.0
dc.subject.keywordGoethite
dc.subject.keywordLED light
dc.subject.keywordNaphthalene
dc.subject.keywordPersulfate
dc.subject.keywordPAHs
dc.subject.ucmIngeniería química
dc.subject.unesco3303 Ingeniería y Tecnología Químicas
dc.titleAbatement of Naphthalene by Persulfate Activated by Goethite and Visible LED Light at Neutral pH: Effect of Common Ions and Organic Matter.
dc.typejournal article
dc.volume.number12
dspace.entity.typePublication
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relation.isAuthorOfPublication53b0ff5e-06e0-4b3f-b275-983b7944879f
relation.isAuthorOfPublicationd881c013-4577-4254-aa94-1249ec355544
relation.isAuthorOfPublicationc9d0900f-4c0e-4a20-867d-8103d0ac678a
relation.isAuthorOfPublication.latestForDiscovery68af935f-2da3-46e3-8e2d-a33ea1919bd6
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