Sprayed Pyrolyzed ZnO Films with Nanoflake and Nanorod Morphologies and Their Photocatalytic Activity

Figure 7

(a) Comparison of contact angles of ZnO films before and after being irradiated with UV light; (b) photocatalytic degradation of the MO dye; (c) apparent rate of reaction as a function of the (101)/(002) planes intensity ratio; and (d) reusability of ZnO films in four degradation cycles.

(a)

(b)

(c)

(d)