Structural characterization of starch capped ZnO nanoparticles

Zinc oxide nanoparticles have been synthesized by a simple green synthesis route using soluble starch as a capping agent in an aqueous medium. The results of structural investigation of ZnO nanoparticles using various techniques such as X-ray diffraction, scanning electron microscope and Fourier transforms spectroscopy have been presented. XRD confirms the formation of c-axis orientated hexagonal wurtzite crystalline structure of ZnO with average particle size in the range of 21 nm to 25 nm. The morphology of the ZnO samples were determined by SEM images, indicating nano rod like structure with hexagonal phase for starch capped ZnO nanoparticles. Further, the presence of starch and different functional group in synthesized ZnO nanoparticles have been studied by Fourier transform spectroscopy approve the different bonding between starch with Zn.