Synthesis and characterization of nanocrystalline HAp powders prepared by using aloe vera plant extracted solution

Jutharatana Klinkaewnarong, Ekaphan Swatsitang, Chivalrat Masingboon, Supapan Seraphin, Santi Maensiri

Research output: Contribution to journalArticlepeer-review

59 Scopus citations


Nanocrystalline hydroxyapatite (HAp) powders were synthesized by a simple method using aloe vera plant extracted solution. To obtain nanocrystalline HAp, the prepared precursor was calcined in air at 400-800 °C for 2 h. The phase composition of the calcined samples was studied by X-ray diffraction (XRD) technique. The XRD results confirmed the formation of HAp phase. With increasing calcination temperature, the crystallite of the HAp increased, showing the hexagonal structure of HAp with the lattice parameter, a, in a range of 0.9520-0.9536 nm and c of 0.6739-0.6928 nm. The particle sizes of the powder were obtained to be 43-171 nm. The optical properties of the calcined powders were characterized by Raman and FTIR spectroscopies. The Raman spectra showed a main peak of the phosphate vibration mode (ν1(PO4)) at ∼963 cm-1 for all the calcined samples. The peaks of the phosphate carbonate and hydroxyl vibration modes were observed in the FTIR spectra for all the calcined powders. The morphology tends to change from a spherical shape to a rod-like shape with increasing calcination temperature as revealed by TEM.

Original languageEnglish (US)
Pages (from-to)521-525
Number of pages5
JournalCurrent Applied Physics
Issue number2
StatePublished - Mar 2010
Externally publishedYes


  • Aloe vera
  • Characterization
  • Electron microscopy
  • FTIR spectroscopy
  • Hydroxyapatite
  • Raman spectroscopy
  • Synthesis
  • X-ray diffraction

ASJC Scopus subject areas

  • General Materials Science
  • General Physics and Astronomy


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