Synthesis and characterization of hydroxyapatite/titania nanocomposites using in situ precipitation technique

被引：27

作者：

Enayati-Jazi, Mahnaz ^{[1
]}

Solati-Hashjin, Mehran ^{[2
]}

Nemati, Ali ^{[1
]}

Bakhshi, Farhad ^{[2
]}

机构：

[1] Islamic Azad Univ, Dept Mat Engn, Sci & Res Branch, Tehran, Iran

[2] Amirkabir Univ Technol, Dept Biomed Engn, Tehran, Iran

来源：

SUPERLATTICES AND MICROSTRUCTURES | 2012年 / 51卷 / 06期

关键词：

Hydroxyapatite (HAp); Titania (TiO2); Nanocomposites; In situ precipitation; VITRO; COMPOSITES; BIOCOMPATIBILITY; OSTEOBLASTS; COATINGS; POWDERS;

D O I：

10.1016/j.spmi.2012.02.013

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Hydroxyapatite/titania nanocomposites were successfully synthesized by in situ precipitation of precursor matters from hydroxyapatite and titania at 70 degrees C with different hydroxyapatite/titania ratios. X-ray diffraction, Fourier transform infrared spectroscopy, Brunauer-Emmett-Teller surface, scanning and transmission electron microscopes were employed to characterize the prepared nanocomposite powders. X-ray diffraction results indicated that hydroxyapatite and anatase (TiO2) were the major crystalline phases. By increasing the amount of titania nano-particles. Fourier transform infrared spectroscopy revealed that (PO4)(3-) bands at 567, 1033 cm(-1) decreased. Brunauer-Emmett-Teller surface results also showed a reduction in surface areas of nanocomposites. Transmission electron microscope observations revealed that the aspect ratio of hydroxyapatite/TiO2 nanocrystals increased by increasing TiO2 proportion in nanocomposites. The observed nanorod crystals tended to thin, elongated and plate-like in shape. (c) 2012 Published by Elsevier Ltd.

引用

页码：877 / 885

页数：9

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