Fig. 5

Effect of (a) pH, (b) catalyst dose (g/l), (c) initial dye concentration and (d) time (min) on the photodegradation of MB using CuO and CuO-OP NPs.

Effect of (a) pH, (b) catalyst dose (g/l), (c) initial dye concentration and (d) time (min) on the photodegradation of MB using CuO and CuO-OP NPs.