Adsorption isotherms are useful tools for predicting how
adsorbate molecules are distributed on the solid/liquid interface
when the chemical equilibrium is reached, beyond providing
important information about the adsorption capacity of the
material. The adsorption isotherm of MB onto ACb and non-linear
models adjustments (Langmuir, Freundlich and Redlich–Peterson)
are shown in Fig. 4a, and the obtained parameters for each model
are listed in Table 3.