| 不同条件下合成的纳米羟基磷灰石晶体的性能研究 |
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| 引用本文： | 莫利蓉,李玉宝,吕国玉,李吉东,杨维虎.不同条件下合成的纳米羟基磷灰石晶体的性能研究[J].化学研究与应用,2006,18(3):230-234. |
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| 作者姓名： | 莫利蓉 李玉宝 吕国玉 李吉东 杨维虎 |
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| 作者单位： | 四川大学,纳米生物材料研究中心,分析测试中心,四川,成都,610064;四川大学,纳米生物材料研究中心,分析测试中心,四川,成都,610064;四川大学,纳米生物材料研究中心,分析测试中心,四川,成都,610064;四川大学,纳米生物材料研究中心,分析测试中心,四川,成都,610064;四川大学,纳米生物材料研究中心,分析测试中心,四川,成都,610064 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 用磷酸钠和硝酸钙为原料,在8种不同条件下制备了纳米羟基磷灰石(n-HA)晶体,研究了不同条件下制备的n-HA晶体的形态、组成、Ca/P摩尔比和结晶度。运用透射电镜((TEM)、红外光谱(IR)和X射线衍射(XRD)分析和表征了不同条件下得到的纳米羟基磷石灰晶体的形貌、组成和结晶度。用化学方法分析了纳米羟基磷灰石晶体的Ca/P摩尔比。结果表明,不同条件下合成的纳米磷灰石晶体均为含有HPO42-和CO32-的弱结晶结构,与自然骨磷灰石类似。
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| 关 键 词： | 纳米羟基磷灰石 pH值 反应条件 结晶度 Ca/P摩尔比 |
| 文章编号： | 1004-1656（2006）03-0230-05 |
| 收稿时间： | 2005-05-20 |
| 修稿时间： | 2005-09-30 |
Study on nano-hydroxyapatite crystals synthesized under different conditions |
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| MO Li-rong,LI Yu-bao,LV Guo-yu,LI Ji-dong,YANG Wei-hu.Study on nano-hydroxyapatite crystals synthesized under different conditions[J].Chemical Research and Application,2006,18(3):230-234. |
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| Authors: | MO Li-rong LI Yu-bao LV Guo-yu LI Ji-dong YANG Wei-hu |
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| Institution: | Research Center for Nano - Biomaterials, Sichuan University, Chengdu 610064, China |
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| Abstract: | Using sodium phosphate and calcium nitrate as reagents,nano-hydroxyapatite(n-HA) crystals were synthesised under eight conditions.The morphology,composition,crystallinity were investigated by Transmission Electron Microscope(TEM),Infrared spectra(IR),X-ray diffraction pattern(XRD).The Ca/P molar ratio of n-HA was tested by chemical method.The results indicated that all samples showed a similar,poorly-crystallized HA structure containing CO_3~(2-),HPO_4~(2-),OH~ and Na~ ions.The adding order between calcium and phosphate would affect the crystallinity and Ca/P molar ratio of hydoxyapatie.Adding sodium phosphate into calcium nitrate could gain better crystallinity,higher Ca/P molar ratio than adding calcium nitrate into sodium phosphate.The pH value of reaction had obvious effect on the Ca/P molar ratio of hydroxyapatite.The pH value kept at 10 could obtain HA with higher Ca/P molar ratio. |
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| Keywords: | nano-hyroxyapatite pH value reaction condition crystallinity Ca/P molar ratio |
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