Potato Peels as an Adsorbent for Heavy Metals from Aqueous Solutions: Eco-Structuring of a Green Adsorbent Operating Plackett–Burman Design

Figure 13

Arrhenius plots of (a) adsorption process (first order), (b) Cd(II) consumption (second order), (c) Weber-Morris, and (d) Elovich plots.

(a)

(b)

(c)

(d)