Abstract
Carbonated hydroxyapatite (CHA) was successfully synthesized from pearl shells (Pinctada maxima) using the precipitation method with pH treatment variation. Based on the X-ray diffractometer (XRD) results, pH treatment caused the crystallographic properties of CHA to decrease. The Fourier transform infrared spectroscopy (FTIR) data showed the characteristics of B-type CHA. The energy dispersive X-Ray spectroscopy (EDS) analysis showed that CHA synthesized with a pH of 10 had the most significant carbonate content of 6.3 wt%. Based on the transmission electron microscopy (TEM) analysis, the morphology of CHA with a pH of 10 was the most agglomerated compared to the other samples.
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