Hydroxyapatite synthesised from nanosized calcium carbonate via hydrothermal method

Y. S. Wu, W. K. Chang, M. Jou

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Hydroxyapatite (HAp) was synthesised using a hydrothermal method. Nanosized CaCO 3 was used as the calcium source, while (NH 4) 2HPO 4 was used as the phosphorous source. Well crystallised HAp and a small amount of b-tricalcium phosphate (β-TCP) were obtained after the hydrothermal reaction. Fourier transform infrared spectra show that under conditions of pH 6 and 250°C, the functional groups of OH - and PO4 3- 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°C. After hydrothermal reaction at pH 6 and 250°C, most products are HAp with a small amount of β-TCP synthesised as byproduct and some residual CaCO 3.

Original languageEnglish
Pages (from-to)119-123
Number of pages5
JournalMaterials Technology
Volume27
Issue number1
DOIs
Publication statusPublished - 2012 Feb 1

    Fingerprint

Keywords

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

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this