Research Article
Synthesis, Optimization, and Characterization of Ecofriendly Production of Gold Nanoparticles Using Lemon Peel Extract
Table 3
Synthesis of GNPs using different ratios of HAuCl4 solution to lemon peel extract.
| | Concentration of HAuCl4 solution (mM) | Concentration of lemon peel extract (%) | Ratio | Color of solution | Absorbance (a.u) | SPR band (nm) |
| | 2.0 | 20 | 1 : 1 | Ruby red | — | — | | 2.0 | 20 | 1 : 2 | Ruby red | — | — | | 2.0 | 20 | 2 : 1 | Ruby red | 2.023 | 523 |
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