REMOVAL OF Ni (II) AND Pb (II) FROM AQUEOUS SOLUTION BY ADSORPTION ONTO Vitex simplicifolia NUT ....

Activated carbon produced from Vitex simplicifolia was used to investigate the adsorption of Pb (II) and Ni (II) ions from aqueous solutions in a batch setup. The initial metal ion concentration, contact time, and absorbent dose were all investigated to establish the optimal absorption conditions. With increasing contact time, initial metal ion concentration, and absorbent dose, the amount of metal ion eliminated increased. The Freundlich isotherm model fit the adsorption equilibrium data the best. The kinetic experimental data correctly corresponded with the second-order kinetic model, implying that the chemical interaction between adsorbent sites and aqueous metal ions may be the sole rate-determining step. The results reveal that activated carbon made from Vitex simplicifolia is a good adsorbent for removing Pb (II) and Ni (II) from aqueous solutions.

Please see the link :- https://www.ikprress.org/index.php/JACSI/article/view/3952