Electrooxidation of nitrite based on green synthesis of gold nanoparticles using Hibiscus sabdariffa leaves

In this study, gold nanoparticles (Au-NPs) were synthesized through green biosynthetic route using water extract of Hibiscus sabdariffa leaves (H. sabdariffa L.) which acted as both reductant and stabilizer agents. The synthesized Au-NPs were characterized by UV–vis spectroscopy, XRD, TEM, FESEM, EDX, zeta potential, and FTIR spectroscopy. By analyzing the UV–vis, FTIR and HPLC data, and comparing with previous studies, the presence of...