Fig. 7

Show fitting of the adsorption behaviors of the studied metals with the different kinetic and isotherm models including (A) Pseudo-First order kinetic model, (B) Pseudo-Second order kinetic model, (C) Langmuir isotherm model, (D) Freundlich isotherm model, (E) D-R isotherm model, and (F) Monolayer model with single energetic site.