【摘要】 以Ca(NO3)2.4H2O和(NH4)3PO4.3H2O为反应物,β-环糊精(β-CD)为模板,成功地合成了直径为2.0~3.0μm的球状羟基磷灰石(HA)。用X射线粉末衍射分析(XRD)、傅里叶变换红外吸收光谱(FTIR)、扫描电子显微镜(SEM)和电导率测定等手段对所制得的样品进行了表征,结果表明β-CD的浓度很大程度地影响了HA的形貌。在1.0~1.5%β-CD为模板的条件下可以合成直径为3.0μm左右的HA。β-环糊精与HA之间存在着相互作用促使了球状HA的生成,并讨论了这种作用的可能机理。更多还原

【Abstract】 Spherical hydroxyapatite(HA) with diameter of 2.0-3.0μm was synthesized successfully.Using Ca(NO3)2·4H2O and(NH4)3PO4·3H2O as reagents and β-cyclodextrin(β-CD) as template.The crystal phase,chemical composition,microstructure of the obtained HA were characterized by X-ray powder diffraction analysis(XRD),Fourier-transform infrared spectroscopy(FTIR) and scanning electron microscopy(SEM).The results show that the concentration of β-CD significantly affects the morphologies of the HA.Spherical hydroxyapatite particle with diameter about 3.0μm can be synthesized using a certain concentration(1.0-1.5%) β-CD as template.Spherical apatite crystal forms because a high affinity between HA and β-CD.更多还原