Synthesis and Characterization of Gold Nanoparticles (AuNPs) by Utilizing Bioactive Compound of Imperata cylndrica L

摘要: Gold nanoparticles (AuNPs) have been successfully synthesized using bioactive compounds of Imperata cylindrica L leaf extract. In this study, precursors used HAuCl 4 7x10 -4 M, 8x10 M and 9x10 M. Concentration was 5%. The colloid nanoparticle formed were characterized Ultraviolet-visible Spectrophotometer (UV-Vis), Fourier Transform Infrared Spectroscopy (FTIR), Transmission Electron Microscopy (TEM), X-ray Diffraction (XRD). formation gold at concentration showed the best results with a color change to red. UV-Vis an absorbance value 1.4 wavelength 530 nm. FTIR analysis interaction -OH functional group on phenolic extract Au 3+ ions. There shift peak wavenumber 3414 cm -1 3404 , indicating nanoparticles. TEM morphology AuNPs is sphere-shaped particle size 20 XRD crystal average 12