Fig. 11

(a) Reusability of ZnO–CuO–AgO composite, ZnO–CuO–AgO decorated turbine and ZnO–CuO–AgO decorated cloth for degradation of quaternary dye system. (b) XRD plot of ZnO–CuO–AgO composite before and after five cycles of photodegradation. (c) FTIR curve of ZnO–CuO–AgO composite before and after five cycle of photodegradation.