Abstract
Hydroxyapatite (HAp) is a bioactive material that forms the main mineral part of teeth, hard tissues, and bone in humans. The goal of the present study is to prepare hydroxyapatite from bio-waste materials such as fish bone and bovine femur bone at different calcination temperatures, selecting the optimal calcination temperatures and then comparing these with commercial nano-HAp. The HAp was synthesized from the bio-waste materials by a calcination process in a thermal dry and fire furnace with different calcination temperatures, heating rates and cooling rates all carefully controlled. The best results were obtained at 950°C since, at this temperature, the Ca/P ratio reached 1.6589 for fish bone and 1.7058 for bovine femur bone, which is close to the commercial stoichiometric nano-HAp ratio of 1.67.
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Acknowledgements
The authors gratefully acknowledge the staff of the Materials Research Center, Ministry of Science and Technology, Iraq, for the characterization facility provided there, and Professor Nader Pravin-Amirkabir University of Technology, Iran, for his revision of this paper.
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Hammood, A.S., Hassan, S.S. & Alkhafagy, M.T. Comparison of Natural and Nano-synthetically-Produced Hydroxyapatite Powder. JOM 71, 272–278 (2019). https://doi.org/10.1007/s11837-018-3185-5
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DOI: https://doi.org/10.1007/s11837-018-3185-5