VARIATION OF SINTERING TEMPERATURE IN THE SYNTHESIS OF FLUORAPATITE FROM SNAIL SHELLS (Achatina fulica) USING THE SOL-GEL METHOD

Indonesian Journal of Pure and Applied Chemistry Pub Date : 2023-11-01 DOI:10.26418/indonesian.v6i3.67697

Charlena Charlena, Yessie Widya Sari, Wulan Islamia

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Abstract

Dental caries can cause porous cavities and even broken teeth, necessitating natural teeth extraction and replacement with implants. Fluorapatite, a dental implant material, can be synthesized from snail shells containing 98% calcium carbonate. This study aims to identify the characteristics of fluorapatite and determine the effect of variations in sintering temperature on the synthesis of fluorapatite made from snail shells using the sol-gel method. Variations of sintering temperature used are 700, 900, and 1100 °C. The results showed that fluorapatite synthesized with the sintering temperature of 900 °C demonstrates the highest crystallinity, according to the diffractogram results, there is an 83% presence of the apatite phase at an angle of 31.8126°, with a crystal size of 79 nm and a particle size of 0.5 µm. Fourier-transform infrared spectroscopy analysis on the sample showed the presence of OH, OH−F, and PO43− functional groups. The sample showed a spongy surface morphology with hexagonal-shaped flowers—a Ca/P molarity ratio 1.67

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溶胶-凝胶法制备螺壳氟磷灰石时烧结温度的变化

龋齿会导致蛀牙多孔，甚至牙齿断裂，因此需要自然拔牙并植入植入物。氟磷灰石是一种植牙材料，可以由含有98%碳酸钙的蜗牛壳合成。本研究旨在确定氟磷灰石的特性，并确定烧结温度的变化对溶胶-凝胶法制备螺壳氟磷灰石的影响。烧结温度的变化是700、900和1100℃。结果表明，在烧结温度为900℃时合成的氟磷灰石结晶度最高，衍射结果显示，在角为31.8126°处有83%的磷灰石相存在，晶体尺寸为79 nm，粒径为0.5µm。傅里叶红外光谱分析表明，样品中存在OH、OH−F和PO43−官能团。样品表面呈海绵状，花呈六边形，Ca/P摩尔浓度比为1.67

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Indonesian Journal of Pure and Applied Chemistry

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