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Crystallinity of Hydroxyapatite Powders from Acid Washed and Thermally-Treated Tilapia Bones

Author(s): Bienvenido M. Butanas

Published: 28 Jul 2018
Volume: 21 (2017) Issue 1, Page: , Category: Natural Sciences,


This paper presents the production of quality hydroxyapatite (HAp) powders from tilapia bones using thermal treatment. Hydroxyapatite was successfully synthesized by calcination of 0.5M HCl pre-treated tilapia bones. Powder X-ray diffraction (XRD) revealed the nano-crystalline hexagonal structure of HAp powders. Peaks associated with impurities such as hydrates and carbonates decreased and van- ished along with the coalescence of particles as calcination temperature increased. XRD results also showed better crystal formation at 800 and 900oC. The synthesized HAp powder in this study con- formed well to the properties of biological apatites.

Keyword(s): Bioceramic Biomaterial HAp Nano-crystalline material

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