Removal of heavy metal ions from aqueous solutions using carbon aerogel as an adsorbent

The applicability of the Lagergren kinetic model has also been investigated. Thermodynamic constant (Kad), standard free energy (ΔG0), enthalpy (ΔH0) and entropy (ΔS0) were calculated for predicting the nature of adsorption. The results indicate the potential application of this method for effluent treatment in industries and also provide strong evidence to support the adsorption mechanism proposed.