Research Article
Synthesis, Optimization, and Characterization of Ecofriendly Production of Gold Nanoparticles Using Lemon Peel Extract
Table 2
Synthesis of GNPs using different concentrations of HAuCl4 solution.
| | Concentration of HAuCl4 solution (mM) | Concentration of lemon peel extract (%) | Ratio | Color of solution | Absorbance (a.u) | SPR band (nm) |
| | 0.5 | 20 | 1 : 1 | Grey | — | — | | 1.0 | 20 | 1 : 1 | Grey | — | — | | 1.5 | 20 | 1 : 1 | Ruby red | 1.082 | 548 | | 2.0 | 20 | 1 : 1 | Ruby red | 1.279 | 542 | | 2.5 | 20 | 1 : 1 | Ruby red | 1.223 | 539 |
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