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)]
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)]