Preparation of Porous Spherical Hydroxyapatite Particles by Phosphoration of Calcium Carbonate
碳酸钙磷酸化工艺制备多孔球形羟基磷灰石

The porous spherical hydroxyapatite particles were prepared by phosphoration of calcium carbonate with solutions containing (NH4)2HPO4, Na2HPO4 and their mixtures under microwave heating, and the products were characterized by ESEM, XRD and EDS. The experimental results showed that calcium carbonate particles were converted rapidly into hydroxyapatite after microwave treatment for 15 min. The composition of phosphoration solution has strong effect on the morphology and crystallization of the product. Hydroxyapatite with different spherical structures of fuzzy or fine particles aggregated morphologies were obtained under different conditions.