CHLOROXYLON SWIETENIA ACTIVATED CARBON FOR ADSORPTION OF MALACHITE GREEN FROM AN AQUEOUS SOLUTION BY KINETIC, BATCH ADSORPTION, ADSORPTION ISOTHERMS AND THERMODYNAMIC STUDIES

Abstract

Dyes are widely used in textile industries. The colorants have one of the most important roles in industrial pollutants. Many methods have been employed for the removal of colorants from industrial pollutants among which, adsorption technique is very suitable due to high efficiency of its use in the large scale. In our research work, the activated carbon prepared from Chloroxylon Swietenia Bark has been used for the removal of malachite green dyes from an aqueous solution. The effective parameters like contact time, adsorbent dose, amount of other ions and pH were considered for the adsorption efficiency. Kinetic models like pseudo second order, Elovich and intra-particle diffusion models being used. Morphological study of Chloroxylon swietenia Activated Carbon (CSAC) was determined by using Scanning electron microscopy (SEM) and Fourier transforms infrared spectroscopy (FTIR). The values of thermodynamic parameters indicate that adsorption of MG dye on CSAC is physisorption and also showed that the endothermic and spontaneous in nature.