Green Synthesis of Silver Nanoparticles Using Cinnamon Extract

Abstract

Nowadays, noble metals nanoparticles are considered as the promising metals due their fascinating physical properties. Among the noble metals, silver nanoparticles ( Ag-NPs) exhibit a sharp and distinct absorption band in the visible region of electromagnetic spectrum associated with localized surface Plasmon resonance. Moreover, Ag NP has high resistance to oxidation and antibacterial activity which make it desirable for a wide range of applications particularly in biomedical sciences. This led researchers to use materials with low toxicity to synthesis silver nanoparticles which is termed green synthesis. In this method, wide range of natural plant extract is used as the reducing agent instead of poisonous materials. In this work, cinnamon bark extract was used as the reducing agent to synthesize silver nanoparticles using the well known method called Turkevich method. During synthesis, the color was changed after addition of cinnamon bark extract, indicating the formation of silver nanoparticles. UV-Vis spectrometer was further confirmed the formation of silver nanoparticles due appearance of absorption peak in visible region owing to localized surface plasmon resonance. In addition, the effect of cinnamon quantity and boiling time on the formation of silver nanoparticles was investigated. The obtained results showed that the boiling time has significant effect on the particle size while the quantity of cinnamon extract had no effect on the particle size but instead enhanced interaction rate.