Characterization of Hydroxyapatite Doped with Different Concentrations of Magnesium Ions

Hydroxyapatite (HA) is a major component and an essential ingredient of normal bone and teeth. It makes up bone mineral and the matrix of teeth and gives bones and teeth their rigidity. It has been used as adsorbents for heavy metals, supports and as catalysts in oxidationreactions. The present research aimed to study the influence of Mg in the growth of the hydroxyapatite crystal and improve the chemical and physical properties of HA due to the doping with Mg ions. HA pure (S1) and Mg loaded hydroxyapatite (S2, S3 and S4) of different magnesium concentrations have been prepared to select the best Mg concentration touse in medical applications. The synthesized samples were characterized by The XRD (X-ray diffraction), FTIR (Fourier transform infrared radiation) spectroscopy, SEM (Scanning Electron Microscope) and EDX (Energy Dispersive X-ray Analyses). The obtained results were found that all the samples have the same crystalline structure. The crystallinity of the samples decreased as the Mg ions concentration increase. SEM show that the Mg ions incorporated in the HA crystal, this indicate that the HA crystal acts as carrier for the Mg ions.