Hydroxyapatite synthesised from nanosized calcium carbonate via hydrothermal method

作者：Wu Y S^*; Chang W K; Jou M

来源：Materials Technology, 2012, 27(1): 119-123.

DOI：10.1179/175355511X13240279340327

• Hydrothermal
• Hydroxyapatite
• Nanocalcium carbonate
• beta-Tricalcium phosphate

Hydroxyapatite (HAp) was synthesised using a hydrothermal method. Nanosized CaCO3 was used as the calcium source, while (NH4)(2)HPO4 was used as the phosphorous source. Well crystallised HAp and a small amount of b-tricalcium phosphate (beta-TCP) were obtained after the hydrothermal reaction. Fourier transform infrared spectra show that under conditions of pH 6 and 250 degrees C, the functional groups of OH- and PO43- were stronger than those under pH 10. This suggests that the powder synthesised at pH 6 has more HAp phase than that at pH 10. Scanning and transmission electron microscope images show that HAp exhibits a rod-like shape at pH 6 and 250 degrees C. After hydrothermal reaction at pH 6 and 250 degrees C, most products are HAp with a small amount of beta-TCP synthesised as byproduct and some residual CaCO3.

• 出版日期2012-2
• 单位东华大学; 中国科学技术大学