Sol-gel synthesis and characterization of hydroxyapatite nanorods

被引：140

作者：

Padmanabhan, Sanosh Kunjalukkal ^{[1
,2
]}

Balakrishnan, Avinash ^{[1
,2
]}

Chu, Min-Cheol ^{[1
]}

Lee, Yong Jin ^{[2
]}

Kim, Taik Nam ^{[2
]}

Cho, Seong-Jai ^{[1
]}

机构：

[1] Korea Res Inst Stand & Sci, Div Metrol Emerging Technol, Taejon 305340, South Korea

[2] Paichai Univ, Coll Engn, Dept Informat & Elect Mat Engn, Taejon 302735, South Korea

来源：

PARTICUOLOGY | 2009年 / 7卷 / 06期

关键词：

Hydroxyapatite; Nanorods; Sol-gel; Particle size; Morphology; HYDROTHERMAL SYNTHESIS; TEMPERATURE; APATITE; BIOMATERIALS; MORPHOLOGY; PRECURSOR; CRYSTALS; POWDER; TIME;

D O I：

10.1016/j.partic.2009.06.008

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In the present study hydroxyapatite (HA) nano-hexagonal rods with 70-90 nm diameter and 400-500 nm length are synthesized using a simple sol-gel route with calcium nitrate and potassium dihydrogenphosphate as calcium and phosphorus precursors respectively. Deionized water was used as a diluting media for HA sot preparation and ammonia was used to adjust the pH = 9. After aging, the HA gel was dried at 60 degrees C and calcined at different temperatures ranging from 300 to 700 degrees C. The dried and calcined powders were characterized for phase composition using X-ray diffractrometry, elemental dispersive X-ray and Fourier transform infrared spectroscopy. Rietveld analysis showed the calcined HA powders of high purity with a hexagonal unit cell structure. Calcination yielded HA nanopowders of increased particle size and crystallinity with increase in temperature. The particle size and morphology was studied using transmission electron microscopy. The aspect ratio (length to diameter ratio) of HA nanorods was measured to be between 6 and 7. (C) 2009 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.

引用

页码：466 / 470

页数：5

共 39 条

[1] Some important factors in the wet precipitation process of hydroxyapatite [J].