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Synthesis of Zinc Oxide Nanostructures using Ocimum Gratissiumum Leaf Extract

ZnO nanostructures including nanorods with a hexagonal tip, flower-like structures, and star-like structures were synthesized by using the Ocimum gratissiumum leaf extract, ZnCl2 and NaOH solution using green synthesis method at room temperature. The solid ZnO products were washed, dried and characterized by using X-ray diffraction (XRD) and Scanning Electron microscopy (SEM). The proportion of raw materials influence the morphology of the ZnO nanostructures. It is observed that with variation of amount of water and amount of leaf extract to the Zinc chloride and sodium hydroxide, different nanostructures like nanorods, flower-like, star-like, regular hexagonal structures are formed. The structure and morphology In all the cases, ZnO nanostructures have Wurtzite sturcutre, as evident from XRD patterns. This method of using the Ocimum gratissiumum leaf extract for synthesis of ZnO nanostructures was found to be ease, low-cost and eco-friendly.