Adsorption Studies of Remazol Brilliant Blue R Dye on Activated Carbon Prepared from Corncob

摘要

The removal of Remazol Brilliant Blue R (RBBR) reactive dye from aqueous solution using corncob based activated carbon (CCAC) was investigated in this study. Adsorption studies were carried out at different initial dye concentration, contact time and solution temperature. The RBBR dye adsorption was found to increase with increase in initial concentration and contact time. RBBR adsorption equilibrium fitted the Freundlich isotherm model most. The maximum adsorption capacity for the adsorption process is 333.3 mg/g. The rate of adsorption was found to follow the pseudo second order kinetic model. Intraparticle diffusion was not the only rate limiting mechanism governing the adsorption process, external mass transfer was also involved. The result demonstrated CCAC as a feasible adsorbent for RBBR dye removal