Aplicación de Arcillas Montmorilloníticas Modificadas con Fe en Procesos Foto-Fenton. Comparación con goetita y nZVI

DE LEON, M.A.; SERGIO, M.; BUSSI, J.; ORTIZ DE LA PLATA, G.; CASSANO, A.E.; ALFANO, O.M.

Congreso; 7º Encontro sobre Aplicações Ambientais de Processos Oxidativos Avançados, 1º Congresso Iberoamericano de Processos Oxidativos Avançados; 2013

Iron pillared clay (Fe-PILC) was prepared from a montmorillonite and was characterized by scanning electron microscopy, X-ray fluorescence and nitrogen adsorption-desorption isotherm. Fe- PILC catalytic activity was evaluated in photo-Fenton processes applied to the degradation of 2-clorophenol. Different catalyst loads were assays. The Fe-PILC allowed almost complete degradation of the contaminant. An increase in the contaminant degradation rate was observed, following leaching of iron during catalytic assays, which suggest the existence of a homogeneous photo-Fenton mechanism. The catalytic performance of the Fe- PILC was compared with that for goethite and zero valent iron nanoparticles. Differences were found regarding the achieved degradation levels, the efficiency in oxidant consumption and the extension of iron leaching.