Adsorption kinetics of copper ion from aqueous solution by using the acid activated samanea saman carbon

B. R. Venkatraman1, U. Gayathr

Abstract

The main objective of this present study was to prepare an acid activated carbon prepared from the barks of Samanea Saman (SSC). The various parameters such as adsorbent dose, contact time, initial copper ion concentration, other ions, pH, and temperatures were analyzed. Adsorption efficiency, adsorption energy, adsorption capacity, intensity of adsorption and dimensionless separation factor were calculated from the two adsorption isotherms presented in this paper are Freundlich and Langmuir isotherms. According to kinetic and thermodynamic studies, the rate constant values for the adsorption process, ΔG⁰, ΔH⁰, ΔS⁰ were calculated. From FT-IR, XRD and SEM images, the mechanism of adsorption of copper ion onto low cost activated carbon has investigated and confirmed. From this study, the adsorbent was found to be more effective and viable