Green synthesis and characterization of silver nanoparticles using Kabau pod extract Muhamad Allan Serunting(a,b), Muhammad Ali Zulfikar (a), Henry Setiyanto (a)
a) Analytical Chemistry Research Group, Department of Chemistry, Institut Teknologi Bandung, Bandung 40135, Indonesia
* muhamad.serunting[at]ki.itera.ac.id
b) Department of Chemistry, Institut Teknologi Sumatera, Lampung 35365
Abstract
Silver nanoparticles were successfully synthesized using silver nitrate as a precursor through an efficient green route using the kabau pod extract as a reducing and capping agent. Several characterization instrument parameters were used to confirm the formation of silver nanoparticles. Surface plasmon resonance (SPR) spectra measured using a UV-Vis spectrophotometer peaked at 421 nm, confirming that silver nanoparticles were successfully synthesized. Measurement of the size distribution and zeta potential of nanoparticles using dynamic light scattering (DLS) showed that the resulting silver nanoparticles were mono dispersion is 58.9 nm with a polydispersity index (PdI) 0.283 and stable for more than 15 weeks. The zeta potential value is negative 32.2 mV. The easy and low energy consumption synthesis of silver nanoparticles can use chemical reduction methods. We are choosing kabau pods extract as reducing and stabilizing agents because kabau pods only are household waste and traditional markets. The chemical reduction occurs due to the kabau pods extract containing phytochemical compounds (alkaloids, flavonoids, tannins, phenolics, and steroids). In addition, it was also confirmed by the Fourier transformation infrared (FTIR) instrument showing vibrations in the hydroxyl group- carboxyl and amine are involved as reducing and stabilizing agents.
Keywords: Silver Nanoparticles- Kabau pod extract- Green synthesis
