Preparation of polyaniline/activated carbon composite for removal of reactive red 198 from aqueous solution

In this study, preparation of polyaniline (PAni) composite containing activated carbon and its capability to removal of reactive red 198 (RR198) from aqueous solution was studied. PAni was synthesized in the presence of potassium iodate (KIO3) as an oxidant and coated on prepared activated carbon. The removal of RR198 was investigated using PAni/activated carbon (PAni/AC) composite. The products were investigated in terms of morphology and chemical structure with scanning electron microscope (SEM). Batch studies were performed to evaluate the influence of various experimental parameters like pH, adsorbent dosage and contact time. Optimum conditions for RR198 removal were found to be pH 3, adsorbent dosage of 1 g/L and equilibrium time 60 minute.