Fig. 3

XPS spectra of the BS-FA composite and before and after adsorption of Cd(II) and Sb(V): survey (a), O 1s (b), C 1s (c), and Mn 2p (d).
XPS spectra of the BS-FA composite and before and after adsorption of Cd(II) and Sb(V): survey (a), O 1s (b), C 1s (c), and Mn 2p (d).