ABSTRACT

Gold Nanoparticles (GNPs) has been successfully developed by chemical reduction method (Turkevich method) using sodium citrate as reducing agent. The synthesized gold colloidal solution is characterized by using UV-VIS spectroscopy and transition electron microscope (TEM). The result of TEM shows that GNPs with sodium citrate have particle size of 20 nm (diameter) and have incipient stability. The Result of UV- VIS shows that GNPs with sodium citrate gives peak at 525 nm of 0.5% citrate using and red in colour. By changing parameters gold nanoparticles are different in colours and they have different absorbance. Keywords: gold nanoparticles, chemical reduction, sodium citrate, TEM, spectroscopy
Publication date: 01/09/2023

https://ijbpas.com/pdf/2023/September/MS_IJBPAS_2023_7356.pdf

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https://doi.org/10.31032/IJBPAS/2023/12.9.7356