Acta Phys. -Chim. Sin. ›› 2009, Vol. 25 ›› Issue (11): 2404-2408.doi: 10.3866/PKU.WHXB20091020

• ARTICLE • Previous Articles    

Synthesis of Hydroxyapatite Nanoplates by the Hydrothermal Reaction Method with Anionic Amino Acid Surfactant

LI Li-Ying, SONG Wen-Hua, CHEN Tie-Hong   

  1. School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300160, P. R. China|Department of Material Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
  • Received:2009-06-01 Revised:2009-07-20 Published:2009-10-28
  • Contact: SONG Wen-Hua E-mail:tjpu.songwh@gmail.com

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Abstract:

By hydrothermal reaction method with the control of anionic amino acid surfactant N-lauroylsarcosine sodium (Sar-Na), single crystal hydroxyapatite (HAP) nanoplates were synthesized and different synthetic conditions were carefully studied. The products were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and Fourier transform infrared (FTIR) spectroscopy. Results showed that hydroxyapatite nanocrystals with lengths of 0.5-1.0 μm, a width of 30 nm, and a high aspect ratio (20:1) were obtained. By increasing the concentration of N-lauroylsarcosine sodium, the morphology of the hydroxyapatite varied from oval to plate-like. These results show that N-lauroylsarcosine sodium can induce the formation of hydroxyapatite with different morphologies. The current work provides a new approach to tune the aspect ratio of hydroxyapatite nanoplates.

Key words: Hydroxyapatite, Nanoplate, N-lauroylsarcosine sodium, Morphology, Aspect ratio