Synthesis and Characterization of Eggshell-derived Hydroxyapatite for Dental Implant Applications

Jamiu Odusote, Adekunle Adeleke, Peter Ikubanni, Peter Omoniyi*, Tien Chien Jen, G. Odedele, Jude Okolie, Esther Akinlabi

*Corresponding author for this work

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Hydroxyapatite (HAp) production from eggshells for dental implant purposes involved a novel approach utilizing a wet chemical precipitation technique. The eggshells, finely ground to a size below 250 μm, underwent calcination at a high temperature of 900°C for 2 hours. This thermal treatment facilitated the conversion of calcium carbonate into calcium oxide (CaO) while eliminating any organic components in the eggshell. To initiate the synthesis of HAp, a solution comprising 0.6 M phosphoric acid was added to the CaO dispersed in water. The resulting mixture was allowed to undergo aging at different time intervals ranging from 0 to 24 hours, promoting the formation of HAp. Subsequently, the HAp particles were oven-dried at 100°C for 2 hours to remove residual moisture. Finally, the dried particles were sintered at 1200°C in a muffle furnace to achieve the desired properties for dental implant applications. XRD peaks at 25, 33, 40, and 50° confirm the synthesized material as HAp. Vibrational modes of phosphate (PO43-), hydroxyl (OH-), and carbonate (CO32-) groups indicate carbonated HAp. Synthesized HAp holds potential for biomedical applications.

Original languageEnglish
Article number01299
Number of pages9
JournalE3S Web of Conferences
Publication statusPublished - 6 Oct 2023
Event15th International Conference on Materials Processing and Characterization, ICMPC 2023 - Newcastle, United Kingdom
Duration: 5 Sept 20238 Sept 2023

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