Research Article

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

Figure 4

Adsorption isotherm following (a) Langmuir and (b) Freundlich models for Co2+ ion adsorption onto the GO/PVA/Fe3O4, nanocomposite. Experimental conditions: pH = 5.2, C0 = 100–250 mg·L−1, T = 303 K, and madsorbent = 0.01 g.
(a)
(b)