KJ Ceramics 31

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Detailed Program

Paper Number : BI-P01

Time Frame : 12:00~13:30

Presentation Date : Thursday, 27, November

Session Name : Biomaterials

Session Chair 1# : -

Session Chair 2# : -

Synthesis of Calcium Phosphate Minerals from Biowaste

Mr.Bramhe Sachin

Korea Research Institute of Standards and Science

Calcium phosphate minerals like hydroxyapatite and tri calcium phosphate have been widely used for applications such as bone materials, chromatography, fertilizers, nutritional supplement and sensors. Variety of chemical methods such as precipitation, solid-state synthesis, hydrolysis, sol-gel and hydrothermal have been implemented for the synthesis of hydroxyapatite and tri-calcium phosphate. Impetus has been on developing economic route for synthesis of these minerals. Clams which are eaten widely throughout South Korea have external shells that are thrown as waste, which represent almost 70% of its total weight. 63,000 tonnes of the clam shells are produced throughout the world annually. These biowaste clam shells are good source of calcium. In the present study we have used these biowaste clam shells for the synthesis of calcium phosphate mineral by hydrothermal route. By changing the Ca:P we can manipulate the final mineral that is formed. Here we have synthesized hydroxyapatite and tri calcium phosphate from calm shells by hydrothermal method. We have checked the effect of temperature and time on formation of these minerals. The phase purity of the sample was analyzed by X-ray diffraction and Fourier transform infrared spectroscopy. The morphology and size of the synthesized calcium phosphate mineral were determined by scanning electron microscopy and transmission electron microscopy.

Acknowledgements :

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