The Utilization of Green Mussel Shell Waste for The Production of Hydroxyapatite Using Sol-Gel Method

Aninda Ikaputri (Chemical Engineering, University of Pembangunan Nasional Veteran Jawa Timur)
Moh Nur Fuadzi (Chemical Engineering, University of Pembangunan Nasional Veteran Jawa Timur)
Luluk Edahwati (Mechanical Engineering, University of Pembangunan Nasional Veteran Jawa Timur)
Sutiyono Sutiyono (Mechanical Engineering, University of Pembangunan Nasional Veteran Jawa Timur)

Jurnal Inovasi Teknik Kimia
Vol 9, No 1 (2024)

Hydroxyapatite is a type of ceramic biomaterial made up of calcium and phosphate, with a chemical formula of Ca10(PO4)6(OH)2. The Calcium used in this research was obtained from Green Mussel Shell Waste Precipitated Calcium Carbonate. The research was conducted using the sol-gel method to determine the optimal conditions for hydroxyapatite synthesis with the variable of H3PO4 solution at 0.1 M, 0.5 M, and 1 M. The result at the concentration of H3PO4 on 1 M turns out the optimal condition. The hydroxyapatite synthesis using the sol-gel method with a concentration of 1 M pH 12 phosphoric acid was successfully conducted and known as the optimal condition in this research. From the synthesis results, the characterization of hydroxyapatite synthesis shows there was a P-O bond at 995.27 cm-1 and an OH- bond at 3068.75 cm-1. The ratio of Ca/P calculated is 1.68 which is close to the standard ratio Ca/P of hydroxyapatite.