Green Synthesis and Characterization of Silver Nanoparticles Using Zederone from the Rhizomes of Curcuma caesia Roxb. and Catalytic Activity

Abstract

Zederone has been isolated from the rhizomes of Curcuma caesia Roxb. and used for the green synthesis of silver nanoparticles (AgNPs). Various characterization techniques such as UV-Vis spectroscopy, Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), electron paramagnetic resonance (EPR), energy-dispersive X-ray (EDX) spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and selected area electron diffraction (SAED) were used to confirm the reduction of Ag$^{+}$ and the formation of AgNPs. The catalytic activity of the synthesized AgNPs is established in the reduction of DPPH by BHT + AgNPs. The UV-Vis spectra were recorded at regular intervals of time.