WO₃ Nanoplates Film: Formation and Photocatalytic Oxidation Studies

Figure 1

FESEM images of the W film anodized in ethylene glycol electrolyte for 1 h at 60 V using different content of NH₄F: (a) 0.1 wt%; (b) 0.3 wt%; (c) 0.5 wt%; and (d) 0.7 wt%.

(a)

(b)

(c)

(d)