Competitive Adsorption of Metals onto Magnetic Graphene Oxide: Comparison with Other Carbonaceous Adsorbents

Figure 5

Comparison of the maximum adsorption capacities of Cu(II), Pb(II), and Cd(II) on magnetic GO between the single- and multimetal adsorption at pH 4.0 (a), 6.0 (b), and 7.0 (c).

(a)

(b)

(c)