Green Synthesis Of Silver Nanoparticles Using Citrus Sinensis Peel Extract

Abstract

The ability of green nanotechnology to remove harmful chemicals while making the economical and efficient synthesis of desired products is making it increasingly important. The reduction of harmful heavy metals with aqueous plant extracts is a fast, economical and eco friendly way to create nanoparticles. In the present study, silver nanoparticles (AgNPs) were prepared through a chemical reduction process by using Citrus sinensis (orange) peel extracts and 1 mM silver nitrate (AgNO₃) solution. During the synthesis, orange peel extract acts as reducing agent as well as capping agent. Using UV–visible absorption spectroscopy, the resonance of surface plasmon phenomenon of AgNPs was found at 445 nm. Various physicochemical methods, such as Fourier transform infrared (FT-IR) spectroscopy, energy dispersive X-ray spectroscopy (EDS), transmission electron microscopy (TEM)and X-ray diffraction (XRD) were used to further characterize the biosynthesized AgNPs. Aldehydes were the main substances in charge of the successful production of AgNPs, according to GCMS spectrometry examination of the orange peel extract. In addition, the synthesized AgNPs displayed strong antibacterial activity against both Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli) microorganisms. This green synthesis method gives the added advantage of producing useful compounds from fruit waste that could have potential antibacterial activity.