Research Article
Synthesis, Optimization, and Characterization of Ecofriendly Production of Gold Nanoparticles Using Lemon Peel Extract
Figure 4
The pictures show the color changes after the process of reduction of HAuCl4 solution to GNPs using different concentrations of HAuCl4 solution (0.5, 1.0, 1.5, 2.0, and 2.5 mM) before and after dilution with distilled water.