Study of Fluoride Affinity by Zirconium Impregnated Walnut Shell Carbon in Aqueous Phase: Kinetic and Isotherm Evaluation

Figure 3

SEM images of (a) ZIWSC and (b) fluoride-sorbed ZIWSC, and EDAX spectra of (c) ZIWSC and (d) fluoride-sorbed ZIWSC.

(a)

(b)

(c)

(d)