Figure 11.

pH Point of zero charge (pHPZC) (A), ζ-potential of Fe3O4NPs and MoS2@Fe3O4NPs (B,C), and effect of pH adsorption of Cr(VI)/Cr(III) (D,E).

pH Point of zero charge (pHPZC) (A), ζ-potential of Fe3O4NPs and MoS2@Fe3O4NPs (B,C), and effect of pH adsorption of Cr(VI)/Cr(III) (D,E).