Green synthesis and characterization of iron oxide magnetic nanoparticles using Shanghai White tea (Camelia sinensis) aqueous extract

Sara Shojaee, Mahnaz Shahri
2016 Journal of Chemical and Pharmaceutical Research   unpublished
The green synthesis of metallic nanoparticles (NPs) has attracted much attention in recent years because these protocols are low cost and more environmentally friendly than standard methods of synthesis. The green synthesis of iron oxide magnetic nanoparticles (Fe 3 O 4-MNPs) using the aqueous extract of White tea (Camelia sinensis) as a reducing and capping agent has been done in this article. The formation of Fe 3 O 4-MNPs was observed by the change of colour from colourless to dark brown by
more » ... s to dark brown by the addition the leaf extract. To the best of our knowledge, it is for the first time this plant is used for synthesizing nanoparticles. Evaluating its properties and morphology of the Fe 3 O 4-MNPs is done using FT-IR, X-ray and SEM. The average particle diameter as determined by SEM was found to be 35 nm. X-ray diffraction demonstrated that the nanoparticles are crystalline in nature, with spinel shape. These Fe 3 O 4-MNPs fabricated through biosynthesis method, are promising candidate in various applications like biomedical and utilizing as recyclable magnetic nano-catalyst for organic reactions.