This isotherm contains a factor that explicitly taking into the account of adsorbent–adsorbate
interactions. By ignoring the extremely low and large value of concentrations, the model assumes that heat of
adsorption (function of temperature) of all molecules in the layer would decrease linearly rather than logarithmic
with coverage [18, 19]. As implied in the equation, its derivation is characterized by a uniform distribution of
binding energies (up to some maximum binding energy) was carried out by plotting the quantity sorbed qe
against lnCe and the constants were determined from the slope and intercept.