磷酸氢钙水解法合成羟基磷灰石纳米晶

Synthesis of Hydroxyapatite Nanocrystals Using Hydrolysis of Dicalcium Phosphate

采用磷酸氢钙水解法和水热处理技术在模拟体液(SBF)介质中合成HA纳米晶,利用XRD研究了pH值、水热处理温度等制备工艺对合成HA纳米晶的影响。TEM、EDS和FTIR表征结果表明磷酸钙产物为长100nm、直径10nm的棒状含碳酸根羟基磷灰石纳米晶,其Ca/P比为1.69,这表明本工作获得的HA在组成与形态上与骨骼中的HA十分相似。

Hydroxyapatite nanocrystals were synthesized using hydrolysis of CaHPO4 in stimulated body fluids（SBF）after hydrothermal treatment.The effects of initial pH value in SBF and hydrothermal temperature on the phase of the precipitates were examined by XRD.The results of TEM,EDS and FTIR show that carbonated hydroxyapatite nanocrystals with 100 nm long and 10 nm in diameter are obtained and the Ca/P ratio is 1.69,which are very similar to bioapatite in bone in the view of chemical composition and morphology.