Fig. 15

Absorption spectrum of mixed dye solution (Reactive Blue 21 / Reactive Red 195) (60 mg/L) degraded by biosynthesized CuO-NPs with UV irradiation time of 0 to 180 min.

Absorption spectrum of mixed dye solution (Reactive Blue 21 / Reactive Red 195) (60 mg/L) degraded by biosynthesized CuO-NPs with UV irradiation time of 0 to 180 min.