Effect of Synthesis Temperature on Phase and Morphological Characteristics of Hydroxyapatite Nanoparticles

Abstract:

In this research hydroxyapatite powder was synthesized by wet chemical method using calcium nitrate and diammonium hydrogen phosphate precursors at 2, 20, 50 and 90⁰ C. Phase composition, morphological aspects and particle size have been investigated using X-ray diffraction method (XRD), Fourier transform infra red spectroscopy (FTIR) and scanning electron microscopy (SEM). For the low synthesis temperature, products with low degree of crystallinity were obtained and the phases like calcium deficiency hydroxyapatite (CDHA) and hydroxyapatite were formed. In higher temperature ranges, higher degree of crystallinity was measured. For these samples, crystallite sizes estimated by scherrer formula and measured directly by SEM were found to be less than 100 nm. The synthesis temperature of 90°C has showed better results from crystallinity point of view. Considerable crystallinity of the powders produced in this research is almost comparable to that of conventional heat treatment used for enhancing the crystallinity.

• Periodical: Advanced Materials Research (Volumes 264-265)
• Pages: 1329-1333
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.264-265.1329
• Online since: June 2011
• Authors: R. Kazemzadeh, Aliasghar Behnamghader, Saeed Hesaraki
• Keywords: Hydroxyapatite (HAP), Nanoparticle, Temperature, Wet Chemical

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