Removal of Fe(II) from aqueous solution using pomegranate peel carbon: equilibrium and kinetic studies

The ability of new sorbent is compared with other biomass waste materials. Thermodynamic parameters such as the changes of free energy, enthalpy, and entropy were also evaluated. The results indicated that the sorption of iron(II) ions onto the pomegranate peel carbon was an exothermic process that could be well fitted with the Langmuir adsorption model and pseudo-first-order kinetic model.