Layer-by-Layer Assembly and Photocatalytic Activity of Titania Nanosheets on Coal Fly Ash Microspheres

Figure 1

The SEM images of samples as-prepared: (a) and (b) CFA; (c) and (d) Ti_0.91O₂/CFA-2; (e) and (f) Ti_0.91O₂/CFA-4; (g) and (h) Ti_0.91O₂/CFA-8.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)