Hydrothermal synthesis of calcium hydroxyapatite nanorods in the presence of PVP

Calcium hydroxyphosphate (Ca 10 (PO 4 ) 6 (OH) 2 , HAP) nanorods have been successfully synthesized by a simple and mild hydrothermal treatment in the presence of polyvinylpyrrolidone (PVP). A complex of calcium nitrate (Ca(NO 3 ) 2 ) and Na 2 HPO 4 was used to supply the calcium and phosphate ions...

Full description

Saved in:
Bibliographic Details
Published in:Journal of materials science 2009-12, Vol.44 (23), p.6273-6279
Main Authors: Du, Xingwei, Chu, Ying, Xing, Shuangxi, Dong, Lihong
Format: Article
Language:English
Subjects:
Calcium ions
Calcium nitrate
Characterization and Evaluation of Materials
Chemical synthesis
Classical Mechanics
Crystal growth
Crystallography and Scattering Methods
Electron microscopes
Fourier transforms
Hydrothermal crystal growth
Hydrothermal treatment
Hydroxyapatite
Infrared analysis
Infrared spectroscopy
Materials Science
Micrometers
Morphology
Nanorods
Nitrates
Nucleation
Polymer Sciences
Polyvinylpyrrolidone
Reaction time
Sodium hydrogen phosphate
Solid Mechanics
X-ray diffraction
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Calcium hydroxyphosphate (Ca 10 (PO 4 ) 6 (OH) 2 , HAP) nanorods have been successfully synthesized by a simple and mild hydrothermal treatment in the presence of polyvinylpyrrolidone (PVP). A complex of calcium nitrate (Ca(NO 3 ) 2 ) and Na 2 HPO 4 was used to supply the calcium and phosphate ions during the reactions. The synthesis of pure HAP nanorods was under near neutral condition. The morphology and structure of the samples were characterized by transmission electron microscope (TEM), scanning electron microscope (SEM), X-ray diffraction (XRD), and Fourier transform infrared (FT-IR) spectroscopy analysis. The nanorods were uniform with diameter of 20–25 nm and length ranging from several hundreds of nanometers to several micrometers. The influence of different experiment conditions, i.e., the PVP concentration, molar ratio of Ca 2+ to HPO 4 2− , reaction time, and temperature, on the morphology of the nanorods was investigated. The formation mechanism of rod-like HAP and effects of PVP on the crystal nucleation and growth have also been discussed.
ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-009-3860-6