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Unveiling the Dependence between Hydroxyl Radical Generation and Performance of Fenton Systems with Complexed Iron

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Unveiling the Dependence between Hydroxyl Radical Generation and Performance of Fenton Systems with Complexed Iron

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dc.contributor.author García-Negueroles, Paula es_ES
dc.contributor.author García-Ballesteros, Sara es_ES
dc.contributor.author Amat Payá, Ana María es_ES
dc.contributor.author Laurenti, E. es_ES
dc.contributor.author Arqués Sanz, Antonio es_ES
dc.contributor.author Santos-Juanes Jordá, Lucas es_ES
dc.date.accessioned 2020-09-24T12:28:40Z
dc.date.available 2020-09-24T12:28:40Z
dc.date.issued 2019-12-24 es_ES
dc.identifier.uri http://hdl.handle.net/10251/150629
dc.description.abstract [EN] Humiclike substances (HLS) have been demonstrated to be useful auxiliaries to drive the (photo)-Fenton process at mild pH, by avoiding iron inactivation via formation of active complexes. However, the actual performance of the process is affected by a manifold of opposite processes. In this work, the generation of hydroxyl radical-like reactive species in the Fentonlike process has been investigated using electron paramagnetic resonance, employing 5,5-dimethyl-1-pyrroline-N-oxide as a probe molecule. The signal obtained with the Fe(II)-HLS-H2O2 system at pH = was very intense but decreased with time, in line with the difficult reduction of the formed Fe(III) to Fe(II). On the contrary, the signal of the Fe(III)-HLS-H2O2 system was weak but stable. The most intense signal was observed at HLS concentration of ca. 30 mg/L. Interestingly, the performance of the Fenton system at pH = 5 to degrade caffeine followed the same trends, although caffeine removal was very low after 1 h of irradiation. The results were more evident in a solar simulated photo-Fenton process, where an increase in the abatement of caffeine was observed until an HLS concentration of 30 mg/L, where 98% removal was reached after 1 h. es_ES
dc.description.sponsorship The authors want to acknowledge the financial support from Ministerio de Ciencia, Innovacion y Universidades (RTI2018-097997-B-C31) and European Union (645551-RISE-2014, MAT4TREAT). P.G.-N. would like to thank Spanish Ministerio de Economia y Competitividad for her fellowship (BES-2016-077962). es_ES
dc.language Inglés es_ES
dc.publisher American Chemical Society es_ES
dc.relation MINECO/BES-2016-077962 es_ES
dc.relation MICINN/RTI2018-097997-B-C31 es_ES
dc.relation.ispartof ACS Omega es_ES
dc.rights Reconocimiento - No comercial (by-nc) es_ES
dc.subject Humic-Like substances es_ES
dc.subject Bio-Based substances es_ES
dc.subject Photo-Fenton es_ES
dc.subject Mild conditions es_ES
dc.subject Urban waste es_ES
dc.subject Neutral Ph es_ES
dc.subject Oxidation es_ES
dc.subject Degradation es_ES
dc.subject Pollutants es_ES
dc.subject Water es_ES
dc.subject.classification QUIMICA FISICA es_ES
dc.title Unveiling the Dependence between Hydroxyl Radical Generation and Performance of Fenton Systems with Complexed Iron es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1021/acsomega.9b02241 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/EC/H2020/645551/EU es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Textil y Papelera - Departament d'Enginyeria Tèxtil i Paperera es_ES
dc.description.bibliographicCitation García-Negueroles, P.; García-Ballesteros, S.; Amat Payá, AM.; Laurenti, E.; Arqués Sanz, A.; Santos-Juanes Jordá, L. (2019). Unveiling the Dependence between Hydroxyl Radical Generation and Performance of Fenton Systems with Complexed Iron. ACS Omega. 4(26):21698-21703. https://doi.org/10.1021/acsomega.9b02241 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1021/acsomega.9b02241 es_ES
dc.description.upvformatpinicio 21698 es_ES
dc.description.upvformatpfin 21703 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 4 es_ES
dc.description.issue 26 es_ES
dc.identifier.eissn 2470-1343 es_ES
dc.identifier.pmid 31891048 es_ES
dc.identifier.pmcid PMC6933578 es_ES
dc.relation.pasarela S\403668 es_ES
dc.contributor.funder Ministerio de Economía y Competitividad es_ES
dc.contributor.funder Ministerio de Ciencia, Innovación y Universidades es_ES


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