Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10662/20402
Títulos: Boron doped TiO2 catalysts for photocatalytic ozonation of aqueous mixtures of common pesticides: Diuron, o-phenylphenol, MCPA and terbuthylazine
Autores/as: Quiñones Murillo, Diego Hernán
Rey Barroso, Ana
Álvarez Peña, Pedro Modesto
Beltrán Novillo, Fernando Juan
Li Puma, Gianluca
Palabras clave: Ozonización fotocatalítica;Photocatalytic ozonation;TiO2 dopado con boro;Boron doped TiO2;Lixiviación de boro;Boron leaching;Pesticidas;Pesticides;Luz solar;Solar light
Fecha de publicación: 2015
Editor/a: Elsevier
Resumen: TiO2 and B-doped TiO2 catalysts were synthesized using a sol–gel procedure. The photocatalysts were characterized by ICP-EOS, N2 adsorption–desorption, XRD, XPS, and DR-UV-Vis spectroscopy. Four recalcitrant pesticides (diuron, o-phenylphenol, 2-methyl-4-chlorophenoxyacetic acid (MCPA) and terbuthylazine) were subjected to degradation by ozonation, photolytic ozonation, photocatalysis and photocatalytic ozonation using the prepared catalysts under simulated solar irradiation in a laboratory scale system. The B-doped TiO2 catalysts, with 0.5–0.8wt.% of interstitial boron, were more active than bare TiO2 for the removal and mineralization of the target compounds. The combination of ozonation and photocatalysis led to faster mineralization rates than the treatment methods considered individually and allowed the complete removal of the pesticides below the regulatory standards. The B-doped catalyst was stable and maintained 75% mineralization after three consecutive runs.
Descripción: Publicado en: Applied Catalysis B: Environmental. Vol 178. pp 74-81. https://doi.org/10.1016/j.apcatb.2014.10.036
URI: http://hdl.handle.net/10662/20402
ISSN: 0926-3373
DOI: 10.1016/j.apcatb.2014.10.036
Colección:DIQQF - Artículos

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