Cadmium Removal from Contaminated Water Using Polyelectrolyte-Coated Industrial Waste Fly Ash

Figure 5

Polyelectrolyte-coated FA (a) SEM micrographs (view field: 500 and 150 µm; voltage: 10 kV; resolution: 382x and 1.27 kx); (b) EDX spectrum.

(a)

(b)