Synthesis of $ctivated carbon derived irom intsia bijuga species for adsorption of reactive dye: Optimization study

Abstract

This work aims to obtain optimum conditions for the preparation of Intsia bijuga based activated carbon (IBAC) for removal of reactive dye namely remazol brilliant violet 5R (RBV5R). The IBAC was synthesize via chemical activation with potassium hydroxide (KOH) as chemical agent and heated using microwave irradiation. Central composite design (CCD) under Response Surface Methodology (RSM) was implemented with three variables to evaluate the effect of power (264-616W), time (4-8 min) and KOH:char ratio (0.5-2) on RBV5R dye percentage removal. Quadratic model was use to interpret the correlation of the parameters towards the response. Analysis of variance (ANOVA) were used to find the significant factor on the experimental design response. After validation, the optimum preparation condition of IBAC were found to be at power of 412 W, time 4.6 min and KOH:char ratio of 0.77.