Fig. 3
From: Effect of Gelatin-Stabilized Copper Nanoparticles on Catalytic Reduction of Methylene Blue
UV-vis absorption spectra of CuNPs@Gelatin with various concentrations of gelatin [0.1, 0.25, 0.5, 0.75, and 1 wt.% (a–e)]
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Fig. 3 | Nanoscale Research Letters
