Removal of Acrylic dye Blue-5G from Aqueous solution by Adsorption on Activated Carbon Prepared from Maize cops

Abstract

The adsorption of acrylic dye Blue-5G (B-5G) from aqueous solution by activated carbon prepared from Maize cops was studied. The activated carbon had been prepared by chemical activation with H₃PO₄. The adsorption was carried out in batch system. Different experimental parameters like initial pH, contact time, initial concentration, adsorbent dose, stirring rate and temperature on the adsorption of (B-5G) were optimized. Langmuir and Freundlich isotherm models were used to illustrate the experimental isotherms and isotherm's constants. The pH of dye solution on the range of 8-10 was found favorable for the removal of (B-5G) at equilibrium time (90 min) and adsorbent dose 0.1g with stirring rate (200 rpm).