Removal of Synthetic Azo Dye Using Bimetallic Nickel-Iron Nanoparticles

Figure 4

1 g/L stock dye solution concentration over time for Ni₁₀Fe₁₀ molar ratio nanoparticles at different starting concentrations. (a) Alloy morphology with a starting nanoparticle concentration of 1000 mg/L. (b) Core shell morphology with a starting nanoparticle concentration of 1000 mg/L. (c) Alloy morphology with a starting nanoparticle concentration of 500 mg/L. (d) Core shell morphology with a starting nanoparticle concentration of 500 mg/L.

(a)

(b)

(c)

(d)