3.3. Activation energies—adsorption mechanism
In a next step, the adsorption–desorption frequency factors k0 and k0 0 and the activation energies E0, E0 0 can be readily calculated from the linear form of Arrhenius equation [11].
The Arrhenius equations for sorption and desorption are given below:
k ¼ k0eE0=RT (6)
k0 ¼ k0 0eE0 0=RT (7)
where E0, E0 0 = the activation energies of adsorption and desorption, respectively (kcal/mol), k0, k0 0 = frequency factors, R = universal gas constant, and T = absolute temperature (K).
Eqs. (6) and (7) are used in their linear form: