Synthesis of Hydroxyapatite Nanoparticles from Egg Shells by Sol-Gel Method: An Analytical Approach

 Hydroxyapatite, also known as [Ca10(PO4)6(OH)2, (HAp), is a mineral that is commonly utilised in the medical sector as a bone and tooth substitute. This study used the sol-gel method to successfully synthesise hydroxyapatite nanoparticles from egg shells as a calcium source. To make Precipitated Calcium Carbonate, egg shells were calcined, hydrated (slaking), and carbonated (PCC). PCC (calcium carbonate compound) is a calcium carbonate compound (CaCO3) that can be extracted from a substance by a sequence of chemical processes. PCC particles are homogenous and comparable in size to micro-scale particles. The PCC was then mixed with (NH4)2HPO4 to make HAp with different mole ratios of Ca and P (1.57; 1.67; and 1.77), ageing times (24, 48, and 72 hours), and pH levels (9, 10 and 11). The formation of hydroxyapatite biomaterial was studied using XRD, FTIR, and SEM-EDX. XRD patterns revealed that the products were hydroxyapatite crystals. With a hexagonal hydroxyapatite structure, the best results were obtained after 24 hours of ageing at pH 9. The particle size of HAp was 35-54 nm, and SEM examination of the hydroxyapatite morphology revealed that the crystal was homogeneous.

Author(s) Details:

Y. Azis,
Department of Chemical Engineering, Riau University, Pekanbaru 28293, Indonesia.

M. Adrian,
Department of Chemical Engineering, Riau University, Pekanbaru 28293, Indonesia.

C. D. Alfarisi,
Department of Chemical Engineering, Riau University, Pekanbaru 28293, Indonesia.

. Khairat,
Department of Chemical Engineering, Riau University, Pekanbaru 28293, Indonesia.

R. M. Sri,
Department of Chemical Engineering, Riau University, Pekanbaru 28293, Indonesia.

Please see the link here: https://stm.bookpi.org/NICB-V8/article/view/6287

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