Effect of pH and ammonia concentration on the shape and size of fluorapatite nanoparticles obtained by chemical reaction

• Fluorapatites nanoparticles show size distribution from 2 to 22 nm. have a hexagonal structure. different shape according the pH. The ammonia concentration has an influence on morphology and of nanoparticles. Nanoparticles fluorapatite (FAp Nps) were prepared by one step chemical reaction in aqueous solutions. pH system was kept constant at 6 8. FAp Nps characterized with Scanning Electron Microscopy-Energy Dispersive X-Ray Spectroscopy (SEM-EDAX), X-ray Diffraction (XRD), Transmission Microscopy (TEM) Fourier transform infrared spectroscopy (FTIR). Ca/P calculated EDAX analysis 1.69. results XRD FTIR showed presence phases. DRX confirm formation TEM images semispherical elongated mean diameter 3.78 nm, 8.63 nm 10.46 when concentrations is varied. Ammonia Nps.