Figure 6

XPS analysis of SA/CMC-ZFN after adsorption of (a) Cu(II), and (b) Cr(VI); SEM–EDX elemental composition of SA/CMC-ZFN after adsorption of (c, d) Cr(VI), and (e, f) Cu(II).

XPS analysis of SA/CMC-ZFN after adsorption of (a) Cu(II), and (b) Cr(VI); SEM–EDX elemental composition of SA/CMC-ZFN after adsorption of (c, d) Cr(VI), and (e, f) Cu(II).