共沉淀-超声法快速制备CaZr_4(PO_4)_6及其生物活性评价  

Preparation of CaZr_4(PO_4)_6 Using Co-precipitation-ultrasound Technique and Evaluation of Its Bioactivity

作　　者：彭伟涛[1] 詹秀环[2] 张军[1] 宋帮才[1] 冯玉立[1] 徐波[1] 

机构地区：[1]河南科技大学化工与制药学院,河南洛阳471003 [2]周口师范学院化学系,河南周口466001

出　　处：《河南科技大学学报（自然科学版）》2009年第5期97-100,共4页Journal of Henan University of Science And Technology:Natural Science

基　　金：河南省科技攻关项目(0524240014);河南科技大学重大科技预研项目(2004ZD005)

摘　　要：采用共沉淀?超声法,以ZrOCl.8H2O,Ca(NO3).4H2O,NH4H2PO4等为原料快速制备了CaZr4(PO4)6(简称CZP)。借助热分析(TG-DTA),X-射线衍射(XRD),激光粒度分析仪分别对CZP热处理前后的相变化机理、相组成和粒径分布进行了测定和解析。通过CZP压片陶瓷试样在模拟体液(SBF)中进行不同时间的体外测试,并用扫描电镜(SEM)评价了它的生物活性。结果表明,经860℃热处理得到的CZP陶瓷具有一定的生物活性。CaZr4(PO4)6(abbreviated as CZP) powders were prepared by using Ca(NO3)2·4H2O,ZrOCl2·8H2O,NH4H2PO4 as reactants via a coprecipitation-ultrasound technique.The thermal decomposition mechanism of CZP precursor was investigated by thermoanalysis(TG-DTA).X-ray diffraction and laser particle size analyzer were employed to determine the phase composition and particle size distribution,respectively.The bioactivity of CZP ceramic was evaluated via in vitro test in simulated body fluid(SBF) for different days.It was found that the CZP ceramic calcined at 860℃ possesses bioactivity to some extent.

关 键 词：CZP微粉 共沉淀法 超声 活性评价 

分 类 号：TQ127[化学工程—无机化工]