化学沉淀法合成含镁羟基磷灰石研究  

Synthesis of Magnesium Hydroxyapatite on Chemical Precipitation

作　　者：安燕[1] 胡鸣鸣[1] 徐萌飞[1] 杨雪艳[2] AN Yan HU Mingming XU Menfei YANG Xueyan(College of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China Guizhou Radio ＆TV University, Guiyang 550001, China)

机构地区：[1]贵州大学化学与化工学院,贵州贵阳550025 [2]贵州广播电视大学,贵州贵阳550001

出　　处：《贵州大学学报（自然科学版）》2016年第5期47-50,共4页Journal of Guizhou University:Natural Sciences

基　　金：贵州省科学技术基金项目(黔科合J字[2013]2131号);贵州省发改委项目(黔发改规划[2015]771号)

摘　　要：本文在HAP合成工艺基础上通过添加镁离子制备含镁羟基磷灰石(Mg-HAP)杂化纳米粉体。试验采用Ca(NO_3)_2·4H_2O、Mg(NO_3)_2·6H_2O和(NH_4)2HPO4为主原料以化学沉淀法制备纳米Mg-HAP,通过XRD、TEM、IR、EDS检测对产物进行表征分析,研究镁掺杂量对合成产物的影响。结果表明:试验条件下,镁的掺杂量小于10%时,产物XRD显现HAP晶体衍射特征峰,为HAP杂化体;当掺量大于10%,产物没有出现HAP衍射峰。在5%掺杂量时,形成MgHAP杂化晶体特征峰较强,产物含有PO_4^(3-),CO_3^(2-)、OH-基团及H_2O,[Ca+Mg]/P原子比为1.53,接近1.67,粒径为25 nm左右,分散性较好,晶形呈针状,试验表明5%含量的镁掺杂能形成稳定的Mg-HAP杂化纳米晶体。Magnesium hydroxyapatite （Mg-HAP） was prepared by adding magnesium ions on the basis of HAP synthesis process, and the compound of Mg-HAP nano-particles used Ca（ NO3 ）2 , 4H20,Mg （NO3 ）2 . 6H20 and （NH4） 2 HPO4 as the main raw material. The product was analyzed by XRD, TEM, IR and EDS for effect of magnesium＇ doping amount in synthesis process. Results show that ： under the condition of test, HAP crystal dif- fraction characteristic peak of the product appeared by XRD when the amount of doping magnesium was less than 10% and was known as the HAP hereto compound, and did not appear when the content was more than 10%. Mg -HAP＇ characteristic peak is stronger under 5% amount of doping which the product contains PO4^3-, CO3^2-, OH^- and H20, and [ Ca ＋ Mg] / P ratio was 1.53, close to 1.67. Mg-HAP was acicular crystal with particle size about 25nm and good dispersibility. The experiment shows that 5% content of magnesium doping can form stable-HAP hybride crystals.

关 键 词：羟基磷灰石 化学沉淀法 镁离子 杂化 表征分析 

分 类 号：TQ132.33[化学工程—无机化工]