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Comparison of different TiO2 samples as photocatalyst for the degradation of a mixture of four commercial pesticides

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Comparison of different TiO2 samples as photocatalyst for the degradation of a mixture of four commercial pesticides

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dc.contributor.author Vicente Candela, Rafael es_ES
dc.contributor.author Soler Escoda, Juan Miguel es_ES
dc.contributor.author Arques Sanz, Antonio es_ES
dc.contributor.author Amat Payá, Ana María es_ES
dc.contributor.author Frontistis, Z. es_ES
dc.contributor.author Xekoukoulotakis, Nikolaos es_ES
dc.contributor.author Mantzavinos, Dionissios es_ES
dc.date.accessioned 2015-11-30T10:30:37Z
dc.date.available 2015-11-30T10:30:37Z
dc.date.issued 2014-08
dc.identifier.issn 0268-2575
dc.identifier.uri http://hdl.handle.net/10251/58305
dc.description This is the accepted version of the following article: Vicente Candela, R.; Soler Escoda, JM.; Arqués Sanz, A.; Amat Payá, AM.; Frontistis, Z.; Xekoukoulotakis, N.; Mantzavinos, D. (2014). Comparison of different TiO2 samples as photocatalyst for the degradation of a mixture of four commercial pesticides. Journal of Chemical Technology and Biotechnology. 89:1259-1264.], which has been published in final form at http://dx.doi.org/10.1002/jctb.4382. es_ES
dc.description.abstract BACKGROUND: The presence of pesticides in surface and ground waters can trigger serious environmental problems, particularly in those areas where agriculture is the major economic activity. In this respect, photochemical advanced oxidation processes may be employed to decontaminate such matrices. RESULTS: Semiconductor photocatalysis was employed to treat a mixture of four commercial pesticides (oxydemethon-methyl, methidathion, carbaryl and dimethoate at 25 mg L-1 each). Laboratory scale experiments under UV-A irradiation were performed to evaluate the relative activity of six commercially available titania samples at 0.5 g L-1 concentration, with Evonik P25 (a 75: 25 mixture of anatase: rutile) being the most effective one in terms of pesticides degradation. Experiments were then performed in a pilot plant reactor under natural sunlight leading to quantitative removal of pesticides in less than 300 min; this was accompanied by a substantial reduction of acute toxicity to Vibrio fischeri (i.e. from an initial value of 50% to 15%), as well as moderate mineralization, i.e. 40% COD and 25% DOC removal. CONCLUSIONS: The use of sunlight, a renewable energy source, alongside a commercially available, inexpensive and active titania photocatalyst may offer a sustainable treatment option to detoxify this type of wastewater. (C) 2014 Society of Chemical Industry es_ES
dc.description.sponsorship R. Vicente, A. Arques and A. M. Amat acknowledge the financial support of Spanish Ministerio de Educacion y Ciencia (CTQ2012-38754-C03-02). en_EN
dc.language Inglés es_ES
dc.publisher Wiley es_ES
dc.relation.ispartof Journal of Chemical Technology and Biotechnology es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Titanium oxide es_ES
dc.subject Pesticides es_ES
dc.subject Photocatalysis es_ES
dc.subject Detoxification es_ES
dc.subject Sunlight es_ES
dc.subject.classification QUIMICA FISICA es_ES
dc.title Comparison of different TiO2 samples as photocatalyst for the degradation of a mixture of four commercial pesticides es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1002/jctb.4382
dc.relation.projectID info:eu-repo/grantAgreement/MINECO//CTQ2012-38754-C03-02/ES/DESARROLLO DE NUEVAS ESTRATEGIAS BASADAS EN LA INTEGRACION DE PROCESOS FOTOQUIMICOS SOLARES CON OTRAS TECNICAS AVANZADAS PARA EL TRATAMIENTO DE AGUAS RESIDUALES COMPLEJAS./ 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 Vicente Candela, R.; Soler Escoda, JM.; Arques Sanz, A.; Amat Payá, AM.; Frontistis, Z.; Xekoukoulotakis, N.; Mantzavinos, D. (2014). Comparison of different TiO2 samples as photocatalyst for the degradation of a mixture of four commercial pesticides. Journal of Chemical Technology and Biotechnology. 89(8):1259-1264. https://doi.org/10.1002/jctb.4382 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.1002/jctb.4382 es_ES
dc.description.upvformatpinicio 1259 es_ES
dc.description.upvformatpfin 1264 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 89 es_ES
dc.description.issue 8 es_ES
dc.relation.senia 282981 es_ES
dc.identifier.eissn 1097-4660
dc.contributor.funder Ministerio de Economía y Competitividad es_ES
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