where KF (mg/g (L/mg)1/n
), defined as the adsorption or distribution coefficient,
is related to the adsorption capacity and whereof is a step of
the affinity of the adsorbent for the adsorbate; n is a measure of the adsorption
intensity and gives an indication on the favorability of the adsorption.
The linear plot of specific adsorption (log qe) against the (log
Ce) for Freundlich model is shown in Fig. 7