Sintesis dan Pencirian Hidroksiapatit dari Cangkang Kerang Hijau dengan Metode Sol-Gel

Abstract

Hydroxyapatite (HAp) is a major component of bones and teeth. HAp is widely used to repair, fill, extend, and reconstruct damaged bone tissue. In this research, HAp has been synthesized from green mussel shell by using sol-gel method. The controlled synthesis parameter was pH, and the variable being compared was heating temperature at 900 and 1100 oC. The HAp products were characterized by X-ray diffractometer (XRD), Fourier transform infrared spectrophotometer, and scanning electron microscope. The results showed that HAp was formed at alkaline pH. The XRD pattern showed that Hap was formed along with type A apatite carbonate, octacalcium phosphate, α- and β-tricalcium phosphate. The crystallinity was increased by raising the temperature and prolonging the heating time. The quality of HAp will get better with increasing crystallinity, and incrasing the temperature will raise the amount of HAp formed as well