1. Thermal Synthesis of Hydroxyapatite from Fish Bones.
- Author
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Jahangir, Mehnaz Urbee, Islam, Farhana, Jahan, Rumana Akhter, Matin, Md Abdul, and Arafat, M. Tarik
- Subjects
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HYDROXYAPATITE synthesis , *BIOCERAMICS , *ABSORPTION spectra , *SCANNING electron microscopes , *BONES , *FISHES - Abstract
A large quantity of fish bones is dumped everyday by the food industry. It is a natural source of calcium and can be used to synthesize hydroxyapatite (HA). Considering thermal synthesis is a low cost and straightforward process, in this study, HA is synthesized by sintering cleaned fish bones at 900 °C and 1200 °C in a heating furnace. The powder obtained after sintering was characterized using a scanning electron microscope (SEM) and fourier transform infrared (FTIR) spectroscopy. SEM analysis shows that the particle size increases as the sintering temperature is increased and the particles tend to agglomerate. The shape of the particle becomes more irregular as the temperature is increased. The FTIR spectra showed absorption peaks of hydroxyl and phosphate groups in both the samples indicating the formation of HA. No peaks of the carbonate groups are present, as all the organic components are removed after sintering. However, some characteristic peaks of β-tricalciumphosphate (β-TCP) in the sample sintered at 1200 °C are observed indicating phase transformation of HA into β-TCP as the sintering temperature is increased. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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