氢氧化钙-磷酸钠体系沉淀法合成纳米羟基磷灰石  

Synthesis of Nano-hydroxyapatite by Method of Precipitation Based on Ca(OH)_2-Na_3PO_4 System

作　　者：高波[1] 龚建议[1,2] 杨运泉[1] 王威燕[1] 罗文群[1] 贺恒[1] 

机构地区：[1]湘潭大学化工学院,湖南湘潭411105 [2]中石化催化剂分公司,北京100011

出　　处：《精细化工》2011年第3期209-212,共4页Fine Chemicals

基　　金：湖南省科技攻关项目(SK20094020);湘潭市科技攻关项目(ZX20093023)~~

摘　　要：以固废磷化渣和NaOH为原料制得Na3PO4,再在超声波辅助下,采用化学沉淀法将Na3PO4溶液缓慢滴加到Ca(OH)2溶液中反应制备出纳米羟基磷灰石,并用FTIR、XRD和SEM等手段对羟基磷灰石进行表征分析。结果表明,在常温和超声波辅助条件下,Na3PO4溶液滴加速度为0.3 mL/min时,用无水乙醇洗涤沉淀物,可获得质量分数达99.5%、粒径为50 nm左右的高结晶度和高分散性纳米羟基磷灰石。Na3PO4 was prepared using phosphating residue and NaOH as base materials.Then,Na3PO4 was precipitated in Ca（OH）2 solution under with the aid of ultrasonic wave to obtain nano-hydroxyapatite.The resulting material was characterized by FTIR,XRD and SEM.The results show that when the Na3PO4 solution dropping speed was 0.3 mL/min under the condition of room temperature and with the aid of ultrasonic wave,and the prepared precipitation was washed by ethanol before drying and calcination,a nano-hydroxyapatite with the purity of 99.5%,the particle size of about 50 nm,and with high crystallinity and high dispersion could be obtained.

关 键 词：纳米羟基磷灰石 超声波 氢氧化钙 磷化渣 沉淀法 功能材料 

分 类 号：TQ126.3[化学工程—无机化工]