Adsorption of Arsenic, Lead, Cadmium, and Chromium Ions from Aqueous Solution Using a Protonated Chabazite: Preparation, Characterization, and Removal Mechanism

Figure 7

(a) Arsenic, (b) lead, (c) cadmium, and (d) chromium speciation as a function of solution pH in aqueous solution.

(a)

(b)

(c)

(d)