Nanocomposites of Magnetite and Layered Double Hydroxide for Recyclable Chromate Removal

Figure 2

Scanning electron microscopic images of (a) MgAl-LDH, (b) magnetite, (c) Mag@LDH-ER, and (d) Mag@LDH-CO, respectively.

(a)

(b)

(c)

(d)