Research Article

Optimized Removal of Hydroquinone and Resorcinol by Activated Carbon Based on Shea Residue (Vitellaria paradoxa): Thermodynamics, Adsorption Mechanism, Nonlinear Kinetics, and Isotherms

Figure 3

3D surface plot of the adsorbed quantities of HQ by CAK-S as a function of (a) concentration and pH and (b) concentration and mass.
(a)
(b)