Effortless green synthesis of zero-valent copper nanoparticles

Document Type : Original Article

Authors

Chemistry Department, Faculty of Science, Benha University, Benha, Egypt

Abstract

We present a direct, environmentally friendly approach for synthesizing porous zero-valent copper nanoparticles utilizing green tea as both a reducing and stabilizing agent. The synthesis procedure was efficient, economical, and eco-friendly. The impact of the reactants' mixing ratio was examined. Optimal yield, around 70%, was attained at 158°F with stirring for 2 hours at 1000 revolutions per minute. The resulting pellet was rinsed three times with distilled water and ethanol. The nanoparticles were dehydrated in a hot air oven at 122 °F. Nanoparticle formation was confirmed via visible color change, UV-visible spectroscopy (UV-Vis), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), zeta potential measurement, scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), and transmission electron microscopy (TEM). The XRD analysis revealed that the particles exhibited an average crystallite size of around 25 nm. SEM scans validate its oval morphology.

Keywords