Synthesis of Duck Eggshells-based Fluorapatite by Using Microwave Irradiation

In this study, fluorapatite (FA) was synthesized by using microwave irradiation with various molarity of P/F. Duck eggshells was used as calcium source due to the high percentage of calcium carbonate. The obtained fluorapatite was characterized by using XRD, FTIR and SEM-EDX. Based on the result, fluorapatite was successfully obtained shown by the formation of FA peak in x-ray diffraction pattern and the presence of hydroxyl functional group in liberation mode in FTIR spectra. Moreover, the higher P/ F molar ratio forms more FA peaks and tends to decreased the intensity of calcium oxide (CaO) and calcium hydroxide (Ca(OH)
₂
).. The optimum FA was formed at the highest P/F molar ratio of 12 that is supported by EDX results with Ca/P and P/F ratio close to the theory.