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

Figure 2

Effect of different parameters on the adsorption of Pb(II) onto all adsorbents: (a) initial pH of the solution, (b) adsorbent dosage, (c) contact time, (d) initial concentration of Pb(II), and (e) temperature.

(a)

(b)

(c)

(d)

(e)