Structural Characterization of Microwave-Assisted Solution-Synthesized Strontium-Substituted Hydroxyapatite
Structural Characterization of Microwave-Assisted Solution-Synthesized Strontium-Substituted Hydroxyapatite
复制标题
微波辅助溶液合成锶取代羟基磷灰石的结构表征
DOI：
10.1142/s1793292016501150
复制
发表时间：
2016-09
期刊：
影响因子：
1.2
通讯作者：
Zhu Jiangnan
中科院分区：
文献类型：
--
作者：
Yang Zhengpeng;Duan Xingze;Zhou Aiguo;Zhu Jiangnan
以不同锶/(锶+钙)摩尔比为0%~15%的水溶液为原料，采用微波辅助溶液法制备了羟基磷灰石及其锶取代羟基磷灰石纳米颗粒(n-HA和sr-HA)。用X射线粉末衍射、傅里叶变换红外光谱和拉曼光谱、场发射扫描电子显微镜、能谱联用和透射电子显微镜研究了羟基磷灰石粉末的结构特性。结果表明，锶离子已掺入羟基磷灰石晶格中。合成的纳米晶由六方结构的羟基磷灰石晶相组成，粒径分别为30~40×60~70 nm和40~50×70~80 nm。焙烧后的羟基磷灰石颗粒大小在120~150 nm之间，产物为球形聚集体，粒径约为70~100 nm。锶离子的掺入导致了HA晶体结构中空位的形成。结果表明，锶的取代并没有改变晶体结构。锶含量越高，由于尺寸效应，焙烧的微晶越少，形成的团聚越多。
Hydroxyapatite and strontium-substituted hydroxyapatite nanoparticles (n-HA and Sr-HA) were prepared by microwave-assisted solution synthesis with aqueous solutions of various Sr/(Sr+Ca) molar ratios ranging from 0% to 15%. The structural properties of the hydroxyapatite powders were investigated by X-ray powder diffraction, Fourier transform infrared spectroscopy and Raman spectra, field emission scanning electron microscopy coupled with energy dispersive X-ray spectrometry and transmission electron microscopy. The results confirmed that strontium ions had been incorporated into the hydroxyapatite lattice. The synthetic n-HA and Sr-HA nanocrystalline consisted of hydroxyapatite crystalline phase with hexagonal structure, and the particle size was 30–40 × 60–70nm and 40–50 × 70–80nm, respectively. The calcined HA particle size ranged from about 120nm to 150nm, the calcined Sr-HA products were composed of spherical aggregates with a size of about 70–100nm. The incorporation of Sr ions lead to the formation of vacancies in the crystal structure of the HA. The results indicated that the strontium substitution did not change the crystal structures. More Sr resulted in less calcined crystallites and formed agglomerates owing to the size effect.
登录
查看更多内容
DOI：
10.1007/s10856-009-3859-1
发表时间：
2010-01-01
影响因子：
3.7
作者：
Brandt, J.;Henning, S.;Schulz, M.
通讯作者：
Schulz, M.
用作生物活性和机械增强材料的锶取代羟基磷灰石晶须的合成
影响因子：
3
作者：
Shen, Yuhui;Liu, Jinhao;Lin, Kaili;Zhang, Weibin
通讯作者：
Zhang, Weibin
影响因子：
9.7
作者：
Capuccini, C.;Torricelli, P.;Bigi, A.
通讯作者：
Bigi, A.
影响因子：
5.4
作者：
A. Yasukawa;K. Kandori;Hidekazu Tanaka;K. Gotoh
通讯作者：
A. Yasukawa;K. Kandori;Hidekazu Tanaka;K. Gotoh
DOI：
10.1016/j.colsurfa.2011.10.024
发表时间：
2012-01
期刊：
Colloids and Surfaces A: Physicochemical and Engineering Aspects
影响因子：
--
作者：
A. Yasukawa;K. Gotoh;Hidekazu Tanaka;K. Kandori
通讯作者：
A. Yasukawa;K. Gotoh;Hidekazu Tanaka;K. Kandori