Adsorption of Pb(II) from Water onto ZnO, TiO₂, and Al₂O₃: Process Study, Adsorption Behaviour, and Thermodynamics

Figure 4

Models for the kinetics of Pb(II) adsorption onto all adsorbents: (a) PFO, (b) PSO, and (c) Elovich’s equation.

(a)

(b)

(c)