Fig. 9From: Multifunctional CuO nanoparticles with enhanced photocatalytic dye degradation and antibacterial activityUV- visible spectra of CuO NPs during dye degradation (a) MB under sunlight (b) and MR under sunlight; (c) MB (d) MR, degradation of dyes in the dark and under sunlight in the absence and presence of catalyst; (e) the photocatalytic degradation of CuO NPs, methylene blue (MB) and methyl red (MR) dyes under sunlightBack to article page