Research Article

Graphene Oxide/Polyvinyl Alcohol/Fe3O4 Nanocomposite: An Efficient Adsorbent for Co(II) Ion Removal

Figure 3

(a) ln(AtAe) vs. t plot and (b) t/q vs. t plot to calculate the rate constant. Experimental conditions: madsorbent = 0.034 g, T = 30°C, pH = 7, and Co = 20 mg·L−1.
(a)
(b)