Sorption Removal of Methylene Blue Dye from Aqueous Solution by Powdered Yellow Flame Tree Flower (Peltophorum pterocarpum)

Abstract

Present study involves the biosorptive removal study of methylene blue, a blue cationic thiazine dye using Peltophorum pterocarpumflowers (PPF). The effect of parameters on dye removal, such as contact time, pH, adsorbent, and adsorbate concentrations, were examined. The results demonstrated that the optimal experimental conditions for the adsorption were attained at pH 9 and contact time at 40 minutes. The equilibrium data of adsorption isotherms were well fitted to the Langmuir model with maximum adsorption efficiency of 71.9434 mg/g. The pseudo-second-order model could well fit the adsorption kinetics. These results demonstrate that the PPF biomaterial has the potential in effective sorptive elimination of MB dye from aqueous solutions.