Enhanced As (V) Removal from Aqueous Solution by Biochar Prepared from Iron-Impregnated Corn Straw

Figure 1

The FTIR spectra (a) and the XRD spectra (b) of CS and CS-Fe. The typical peaks of XRD spectra were labeled as follows: S, sylvite; M, magnetite; N, natrojarosite.

(a)

(b)