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ABSTRACT
Clay minerals have found applications in various areas of science such as drug carriers in the pharmaceutical industry, catalysis, and adsorption studies either natural or modified. This study was aimed at assessing the surface properties of the adsorption of methyl orange unto sodium modified organo-bentonite clay. The analysis showed maximum percentage removal at 35.000mg/L and 0.5g adsorbent with a value of 97.437% respectively. The minimum percentage removal was found at 5.000g adsorbent with a value of 79.820%. All data were used to test the Freundlich and Langmuir’s isotherm models and these isotherms were fitted by the experimental data suggesting uniform monolayer cover on the modified bentonite clay surface. With the values obtained from percentage removal under the given experimental conditions at room temperature, the modified bentonite clay showed improved surface properties suggesting its use in the treatment of water contaminated with methyl orange.
