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Because of the exceptional qualities, nano-hydroxyapatites, or n-HA, are excellent materials for diverse applications. It is simple and convenient to synthesize from various natural ingredients. The synthesis of n-HA from eggshells, a typical domestic waste product in the neighborhood, was the primary goal of this study project. This synthesis of n-HA was performed using ammonia and orthophosphoric acid as chemical reagents. The synthesized n-HA have been characterized by UV (Ultraviolet), FTIR (Fourier Transformed Infrared Spectroscopy), SEM (Scanning Electron Microscopy), TEM (Transmission Electron Microscopy), and XRD (X-ray diffraction) analysis. The peak formed by the UV analysis verified the successful formation of n-HA in the solution. The bandgap has been determined through additional research on the UV data. The SEM and TEM images show the size and form of the synthesized n-HA. Based on TEM observations, the synthesized n-HA has a size in the range of 10 to 40 nm. The peak ensures the n-HA’s crystallinity that the XRD analysis produced. The obtained crystallinity was 74%.
Hossain et al. (Sun,) studied this question.