Copper-Doped Zinc Oxide Nanoparticles: Synthesis, Characterization, and Application for Adsorptive Removal of Toxic Azo Dye

Figure 1

Cu/ZnO NPs characterization: (a) XRD pattern, (b) SEM image, (c) EDS analysis, (d) FT-IR spectra of Cu/ZnO NPs before adsorption, and (e) FT-IR spectra of Cu/ZnO NPs after adsorption of CR.

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