Analysis of duck eggshells as hydroxyapatite with heat treatment method

Duck eggshell contains very high calcium, making it a raw material for hydroxyapatite (HA) biomedical applications. The aim of this study was to synthesize natural HA from duck waste using cleaning, drying, smoothing with smoothness level passing is 200 meshes and heat treatment temperature variations 850 ºC, 900 950 ºC one hour. resulting characterized X-ray fluorescence (XRF), diffraction (XRD) Fourier transform infrared spectroscopy (FTIR). results the physical characteristics eggshells without are white, slightly bluish in color, smell smooth. However, heated powdered which °C whiter than samples at they have no odor their smoothest. small peaks non-heat powder were 64.89 % CaCO3 23.50 %, then peak CaO increased along increasing that result 69.31 reduce 19.44 %. egg shell achieved highest formation by 91.87 significant decrease 2.25 XRF test showed chemical composition 99.50 elemental calcium (Ca) 99.71 FTIR on mesh observed reduction intensity absorption, while 364.55 cm-1 getting stronger, indicated °C. This much more lower temperature. deformation phase close perfect hydroxylapatite