Effect of water matrix on photocatalytic degradation and general kinetic modeling

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dc.contributor.authorRIOJA, NEREA
dc.contributor.authorZORITA, SAIOA
dc.contributor.authorPEÑAS, FRANCISCO JAVIER
dc.contributor.institutionADAPTACIÓN AL CAMBIO CLIMÁTICO
dc.date.issued2016-01-01
dc.descriptionPublisher Copyright: © 2015 Elsevier B.V.
dc.description.abstractPhotocatalysis employing TiO2 nanoparticles was studied to assess the effect of aqueous matrix nature in the degradation of clofibric acid (CFA) under UV-A radiation. Aeroxide TiO2-P25 at 0.50 g/L was the most effective catalyst among those tested, with a CFA degradation of 98.5% after 15 min. The CFA photodegradation in environmental waters (tap, mineral, river and recycled wastewater) and in the presence of inorganic (NaCl, FeCl3, FeCl2, AlCl3, CaCl2, Al-2(SO4)(3), Fe-2(SO4)(3), Na2SO4, NaHCO3, and Na2CO3) and organic compounds (humic acids, and a surfactant) commonly found in real waters was compared to that obtained in pure water. In general, the removal efficiency decreased with inorganic salts, especially with sulfates and carbonates (>70% deactivation), and also in environmental waters (>90%). A general kinetic model has been developed to describe the CFA photo degradation depending on the type and concentration of substances present in water. The first-order kinetic constants were estimated by defining a characteristic parameter for each ion species tested in the aqueous matrix. High correlation (R-2 >0.99 in most cases) was observed between experimental CFA concentrations and those predicted by the model.en
dc.description.statusPeer reviewed
dc.format.extent6
dc.format.extent709474
dc.identifier.citationRIOJA , NEREA , ZORITA , SAIOA & PEÑAS , FRANCISCO JAVIER 2016 , ' Effect of water matrix on photocatalytic degradation and general kinetic modeling ' , unknown , vol. unknown , pp. 330-335 . https://doi.org/10.1016/j.apcatb.2015.06.038
dc.identifier.doi10.1016/j.apcatb.2015.06.038
dc.identifier.otherresearchoutputwizard: 11556/304
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=84934311792&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofunknown
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subject.keywordsClofibric acid photodegradation
dc.subject.keywordsInorganic salts
dc.subject.keywordsOrganic matter
dc.subject.keywordsEnvironmental water
dc.subject.keywordsKinetic modeling
dc.subject.keywordsClofibric acid photodegradation
dc.subject.keywordsInorganic salts
dc.subject.keywordsOrganic matter
dc.subject.keywordsEnvironmental water
dc.subject.keywordsKinetic modeling
dc.subject.keywordsCatalysis
dc.subject.keywordsGeneral Environmental Science
dc.subject.keywordsProcess Chemistry and Technology
dc.subject.keywordsSDG 6 - Clean Water and Sanitation
dc.subject.keywordsSDG 12 - Responsible Consumption and Production
dc.subject.keywordsFunding Info
dc.subject.keywordsAssociation of Friends of the University of Navarra
dc.subject.keywordsAssociation of Friends of the University of Navarra
dc.titleEffect of water matrix on photocatalytic degradation and general kinetic modelingen
dc.typejournal article
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