Research Article

Fabrication and Response Surface Methodology for the Adsorption of Nickel Ferrite-Graphene Oxide Nanocomposite for the Removal of Methylene Blue from Water

Figure 9

The effect of each pair of factors on the adsorption capacity (a) pH and time; (b) time and initial concentration; and (c) pH and initial concentration.
(a)
(b)
(c)