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- M. N. Vanoy-Villamil, J. G. Carriazo, R. A. Molina, S. Moreno, MODIFICATION OF A SODIUM BENTONITE BY INTERCALATION-PILLARING AND DELAMINATION WITH CR OR SN OLIGOMERS , Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales: Vol. 34 No. 132 (2010)
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Abstract
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 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 in the degradation of organic pollutants in aqueous media through photo-assisted catalytic processes with UV radiation. The results show higher photocatalytic activity for the Al-Fe-pillared clay and higher selectivity for the Al-Cu-pillared clay towards the formation of CO2 and H2O.
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