dc.contributor.author | RIOJA, NEREA | |
dc.contributor.author | ZORITA, SAIOA | |
dc.contributor.author | PEÑAS, FRANCISCO JAVIER | |
dc.date.accessioned | 2016-10-21T09:48:42Z | |
dc.date.available | 2016-10-21T09:48:42Z | |
dc.date.issued | 2016-01 | |
dc.identifier.citation | Applied Catalysis B: Environmental, Vol 180 (2016) pp. 330–335 | en |
dc.identifier.issn | 0926-3373 | en |
dc.identifier.uri | http://hdl.handle.net/11556/304 | |
dc.description.abstract | Photocatalysis 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.sponsorship | Association of Friends of the University of Navarra | en |
dc.language.iso | eng | en |
dc.publisher | ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS | en |
dc.title | Effect of water matrix on photocatalytic degradation and general kinetic modeling | en |
dc.type | journal article | en |
dc.identifier.doi | 10.1016/j.apcatb.2015.06.038 | en |
dc.isi | Yes | en |
dc.rights.accessRights | embargoed access | en |
dc.subject.keywords | Clofibric acid photodegradation | en |
dc.subject.keywords | Inorganic salts | en |
dc.subject.keywords | Organic matter | en |
dc.subject.keywords | Environmental water | en |
dc.subject.keywords | Kinetic modeling | en |