Effect of calcination temperature on hydroxyapatite developed from waste poultry eggshell

Agbabiaka, O.G. and Oladele, O.I. and Akinwekomi, A. D. and Adediran, A.A and Balogun, Ayokunle O. and Olasunkanm, O.G. and Olayanju, T.M.A. (2020) Effect of calcination temperature on hydroxyapatite developed from waste poultry eggshell. Scientific African (8).

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Nowadays, researchers are exploring the suitability of agricultural wastes as biomaterials to solve biomedical related problems. In this work, we investigated the effect of calcina- tion temperature on the properties of hydrothermally synthesized hydroxyapatite (HAp). Chicken eggshells were obtained from local farm as a waste and were thoroughly washed and boiled in distilled water for 10 min to remove its inherent membranes. The cleaned shells were oven dried for 24 h, and thereafter divided into three parts to carry out a three-stage calcination treatment at 80 0 o C, 90 0 o C and 10 0 0 o C, respectively. The calcined samples were separately dispersed in beakers containing 100 ml of distilled water and or- thophosphoric acid, and were subjected to vigorous stirring under a mechanical stirrer on a hot plate at 90 o C. Ageing treatment of the samples gave lumped white solids for each samples, and were subsequently pulverised into powders. Scanning electron microscopy (SEM), X-ray diffraction (XRD), and energy dispersive X-ray spectroscopy (EDX), were em- ployed to study the powder morphology, phase components and elemental composition, respectively. It was observed that the HAp synthesized at 10 0 0 o C (HA10 0 0) has a similar stoichiometry ratio (Ca/P = 1.65) with that of natural bone and also has the tendency to agglomerate by creating pores required for body fluid circulation.

Item Type: Article
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Date Deposited: 10 Aug 2020 11:45
Last Modified: 10 Aug 2020 11:45
URI: https://eprints.lmu.edu.ng/id/eprint/2808

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