Abstract

Removal of phenol and chlorophenol from aqueous solution by magnetic Fe3O4-CuO/biochar has been investigated. Bimetallic ions of iron and copper were immobilized on the surface of biochar prepared from the agricultural by product. Equilibrium adsorption of phenol and chlorophenol onto composite were evaluated using Langmuir dan Freundlich isotherms. Langmuir isotherm model for phenol and chlorophenol are more favorable model than that of Freundlich isotherm related to the monolayer. Adsorption kinetics for phenol and chlorophenol indicated pseudo-second-order with correlation coefficient closed to 1. the adsorption of phenol and chlorophenol are dependent on the adsorption parameter pH, concentration, contact time and weight of adsorbent. From the experiment data, it was observed that uptake of phenol is higher than chlorophenol.

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