Solar Photocatalytic Degradation of Bisphenol A on Immobilized ZnO or TiO₂

Figure 5

SEM images of (a) glass plates; (b) glass plates treated with HF solution; (c) 3.7 mg fresh ZnO (1.6 mg/cm²) immobilized onto the plate; and (d) 3.7 mg used ZnO (1.6 mg/cm²) immobilized onto the plate.

(a)

(b)

(c)

(d)