Plate-like hydroxyapatite nanoparticles synthesized by the hydrothermal method |
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Authors: | Hai-bin Zhang Ke-chao Zhou Zhi-you Li Su-ping Huang |
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Institution: | State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China |
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Abstract: | In this article, calcium nitrate (Ca(NO3)2) and disodium hydrogen phosphate (Na2HPO4) are used as calcium and phosphorous sources to prepare hydroxyapatite nanoparticles by the hydrothermal method. Plate-like nanocrystals of hydroxyapatite are synthesized with the aid of sodium tripolyphosphate. The results show that sodium tripolyphosphate increases the diameters of the hydroxyapatite nanoparticles during the hydrothermal process. When the concentration of sodium tripolyphosphate reaches 0.015 M, the average aspect ratio of those nanoparticles is close to 1. The strong surface adsorption caused by sodium tripolyphosphate may answer for the morphological change of hydroxyapatite crystal. |
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Keywords: | A Ceramics A Nanostructures B Chemical synthesis B Crystal growth |
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