Abstract

NUNGO-MORENO, Jury; CARRIAZO, J. G.; MORENO, S.  and  MOLINA, R. A.. DEGRADACIÓN FOTOCATALÍTICA DE FENOL EMPLEANDO ARCILLAS PILARIZADAS CON Al-Fe y Al-Cu. Rev. acad. colomb. cienc. exact. fis. nat. [online]. 2011, vol.35, n.136, pp.295-302. ISSN 0370-3908.

In this work the pillaring of a Colombian natural clay (bentonite) with the Al-Fe and Al-Cu systems, and the assessment of their photocatalytic activity in the phenol elimination in aqueous solution are shown. The obtained solids were characterized by X-ray diffraction analyses and cationic exchange capacity, showing the effective modification via pillaring. The catalytic activity assessment of the solids confirms the potential application of these catalysts on the organic pollutants degradation in aqueous medium by means of catalytic processes photo-assisted with UV radiation. The results show a higher photocatalytic activity for the Al-Fe-pillared clay and a higher selectivity for the Al-Cu-pillared clay towards the formation of CO₂ and H₂O.

Keywords : pillared clay; photocatalysis; phenol oxidation; photo-fenton process.

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