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dc.contributor.author
Gutiérrez, Eduardo Luciano  
dc.contributor.author
Sacchetto, Julieta Lorena  
dc.contributor.author
Boscá, Francisco  
dc.contributor.author
Marín, María Luisa  
dc.contributor.author
Massad, Walter Alfredo  
dc.contributor.author
Montaña, Maria Paulina  
dc.contributor.author
Miskoski, Sandra  
dc.contributor.author
Ferrari, Gabriela Verónica  
dc.date.available
2024-04-11T13:26:27Z  
dc.date.issued
2024-02  
dc.identifier.citation
Gutiérrez, Eduardo Luciano; Sacchetto, Julieta Lorena; Boscá, Francisco; Marín, María Luisa; Massad, Walter Alfredo; et al.; Photosensitized oxygenation reactions as an alternative towards the degradation of fenamates and related pollutants using visible light; Elsevier; Journal of Water Process Engineering; 60; 105049; 2-2024; 1-94  
dc.identifier.issn
2214-7144  
dc.identifier.uri
http://hdl.handle.net/11336/232707  
dc.description.abstract
Fenamates are a well-known family of non-steroidal anti-inflammatory compounds widely used in medicine. These compounds are found in surface waters and may be the cause of unwanted effects on the ecosystems, in consequence it is desirable to degrade and/or eliminatethem from aqueous media. Sensitized photooxidation is a promising pathway to achieve it since it is a process that uses solar light, diminishing costs, and can be performed in homogeneous or heterogeneous media. In order to optimize this process, we studied the leading variables of the photooxidation process. evaluating the mechanism of sensitized photooxidation of fenamates and related compounds (Fs & RC) as a means to degrade and/or eliminate these substances from aqueous media, and for the further development of photosensitized methods for water remediation by tertiary treatments. Studying the mechanism of the process allowed us to propose a way to control and predict degradation of these compounds in order to improve water quality. Our results indicate that photosensitized transformation of Fs & RC proceeds mainly through a Type II photooxygenation, and photodegradation seem to yield substituted iminebenzoquinones of different regiochemistry instead of other recalcitrant products. The pseudo-first order kinetic constants for degradation of Fs & RC upon irradiation with red led light in air-saturated water/methanol 3:2 solutions in the presence of methylene blue as sensitizer were determined, their values ranged between 4.42×10–4–0.82×10–4s–1.Under these conditions 100 % degradation was reached in a minimum time of 150 (diphenylamine) and 200–300 min (fenamic acid, mefenamic acid and tolfenamic acid).  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Elsevier  
dc.rights
info:eu-repo/semantics/restrictedAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
EMERGING CONTAMINANTS  
dc.subject
NSAID  
dc.subject
PHOTOSENSITIZATION  
dc.subject.classification
Físico-Química, Ciencia de los Polímeros, Electroquímica  
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Ciencias Químicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
Photosensitized oxygenation reactions as an alternative towards the degradation of fenamates and related pollutants using visible light  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2024-04-04T13:15:51Z  
dc.journal.volume
60  
dc.journal.number
105049  
dc.journal.pagination
1-94  
dc.journal.pais
Países Bajos  
dc.description.fil
Fil: Gutiérrez, Eduardo Luciano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; Argentina  
dc.description.fil
Fil: Sacchetto, Julieta Lorena. Universidad Nacional de Río Cuarto. Instituto para el Desarrollo Agroindustrial y de la Salud. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto para el Desarrollo Agroindustrial y de la Salud; Argentina  
dc.description.fil
Fil: Boscá, Francisco. Universidad Politécnica de Valencia; España  
dc.description.fil
Fil: Marín, María Luisa. Universidad Politécnica de Valencia; España  
dc.description.fil
Fil: Massad, Walter Alfredo. Universidad Nacional de Río Cuarto. Instituto para el Desarrollo Agroindustrial y de la Salud. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto para el Desarrollo Agroindustrial y de la Salud; Argentina  
dc.description.fil
Fil: Montaña, Maria Paulina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; Argentina  
dc.description.fil
Fil: Miskoski, Sandra. Universidad Nacional de Río Cuarto. Instituto para el Desarrollo Agroindustrial y de la Salud. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto para el Desarrollo Agroindustrial y de la Salud; Argentina  
dc.description.fil
Fil: Ferrari, Gabriela Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; Argentina  
dc.journal.title
Journal of Water Process Engineering  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S2214714424002812  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1016/j.jwpe.2024.105049