Kinetics, equilibrium, isotherm and thermodynamic modeling of sorption of Reactive Yellow 37 on to balsamodendroncaudatum wood waste activated carbon

Abstract

Balsamodendron caudatum wood waste activated carbon (BAC) have the capability to absorb the dyes from aqueous solution. The unsuitable dumping of dyes in waste water constitutes an ecological trouble and can cause damage to the ecosystem. Present investigation deals with the utilization of (BAC) waste as adsorbent for the exclusion of Reactive Yellow 37 dye from its aqueous solutions. The investigation indicates that adsorption is influenced by initial dye concentration, contact time, dye solution pH, thermodynamic parameters such as the free energy, enthalpy, entropy and adsorption temperature have been investigated in the present study. A Kinetic study of dye followed the pseudo-first-order, pseudo second-order and Elovich models respectively. Equilibrium isotherms for the adsorption of Reactive Yellow 37 on BAC were analyzed by the Langmuir isotherm. Outcome show that the pseudo first order kinetic model was found to compare the investigational data fit.