Figure 6

The adsorption capacities for Maxilon Blue 5G at different concentrations by the Fe₃O₄@MWCNT nanoparticles, the initial concentration of Maxilon Blue 5G is 5–40 mg/L and the adsorption time is 120 min; (b) Percentage removal for Maxilon Blue 5G by the Fe₃O₄@MWCNT nanoparticles.