Highly Efficient Adsorption of Cd(ii) From Aqueous Solutions by Aluminum Oxide Nanoparticles

Abstract

In this study, Aluminum oxide nanoparticles were evaluated for Cd (II) removal from aqueous solution by batch adsorption method. The batch experiments showed that Aluminum oxide nanoparticles can be effectively used to remove Cd (II) from aqueous solution. Maximum removal of Cd (II) was obtained at pH=6 and adsorption equilibrium was achieved in 30 min. The adsorption kinetics well fitted using pseudo second-order kinetic model. The heavy metals sorption has been well explained using Langmuir and Freundlich isotherm model.The results indicated that the high adsorption capacity of Aluminum oxide nanoparticles makes them promising material for heavy metal ions removal from water samples.