Abstract: With hydroxyapatite nanoparticles as the starting material, porous hydroxyapatite nanosolid was prepared by a unique solvothermal hot press method. The samples were characterized by X-ray diffraction, scanning electron microscope and thermal analysis method. The effects of solvent species and the uniformity of the distribution of solvents on the pore volume and pore radius of the porous hydroxyapatite nanosolids were investigated. Besides, the thermal stability of the porous hydroxyapatite nanosolids was also examined.

Key words: Solvent hot press method, Porous nanosolids, Hydroxyapatite nanoparticles, Pore volume