Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1696097 | Applied Clay Science | 2009 | 5 Pages |
Abstract
Organo-bentonites were prepared using hexadecyl trimethylammonium bromide (HDTMA) and benzyl triethylammonium chloride (BTEA). Both surfactants were used at two different rates of the cation exchange capacity (50% and 100%) of the bentonite. The organo-bentonites were characterised by small-angle X-ray scattering and used for the adsorption of polyphenols present in vegetable extracts (mimosa), which are employed in the tanning/retanning processes of leather manufacture. The adsorption capacity of the organo-bentonites was lower than that of activated charcoal. Enhanced adsorption capacities were observed for organo-bentonites prepared with higher amounts of the cationic surfactants.
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Authors
A. Marsal, E. Bautista, I. Ribosa, R. Pons, M.T. García,