Hydroxyapatite Preparation from Crab Shell Waste by Precipitation Method

Malau, Nya Daniaty and Azzahra, St Fatimah and Faradiba, Faradiba and Guswantoro, Taat (2021) Hydroxyapatite Preparation from Crab Shell Waste by Precipitation Method. Solid State Technology, 64 (2). pp. 3050-3059. ISSN 0038-111x

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Abstract

Hydroxyapatite is a biomaterial that is widely used in the medical field because of the nature and content of the same as the materials used to replace damaged tissue in the human body. Hydroxyapatite (HAp) can be obtained by chemical synthesis.In this study, hydroxyapatite synthesis method is done precipitation method.There are four stages in the research process, the first stage is the preparation and sterilization of crab shell waste.The second stage is calcination of crab shell waste to produce CaO.The third stage is the synthesis of HAp using the precipitation method. The fourth stage is the XRD and SEM characterization, and analyzes the characterization results. The result of this research is the synthesis of HAp biomaterial from crab shell waste has been successfully carried out using the precipitation method. The resulting synthesized hydroxyapatite is HAp with crystal phase. The system is hexagonal crystals formed. The space group for hydroxyapatite compounds formed is P 63 / m. There are other compounds formed during the synthesis of hydroxyapatite are compounds Mg-whitlockite (Ca9HMgO28P7). The form of hydroxyapatite obtained is in the form of agglomeration. Where the single particle characteristics tend to be spherical. The size of the hydroxyapatite formed is relatively small at the nano-meter scale.The resulting hydroxyapatite has a particle size in the range between 200 - 1000 nm. The biggest size is 1028 nm and the smallest around 267 nm.

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