13th Joint Conference on Chemistry | |
Synthesis of β-TCP by sol-gel method: variation of Ca/P molar ratio | |
Windarti, Tri^1 ; Darmawan, Adi^1 ; Marliana, Ana^1 | |
Department of Chemistry, Diponegoro University, Tembalang, Semarang, Indonesia^1 | |
关键词: Ca/P ratio; Calcium nitrate tetra-hydrate; Grain size; Irregular shape; Morphology changed; Phosphorous pentoxide; Secondary product; | |
Others : https://iopscience.iop.org/article/10.1088/1757-899X/509/1/012147/pdf DOI : 10.1088/1757-899X/509/1/012147 |
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来源: IOP | |
【 摘 要 】
Beta-TCP has been synthesized by sol-gel method in ethanol media with Ca/P molar ratio of 1.0-1.5. Phosphorous pentoxide solution was slowly added into calcium nitrate tetrahydrate solution with gentle stirring to produce white gel. The white gel was dried at 80°C for 20 hours and continued by calcination process at 800°C for 30 minutes. The results showed that pure β-TCP powders was obtained from Ca/P molar ratio of 1.3. For Ca/P of 1.0-1.2, beside β-TCP, a little amount of β-CPP were found and for Ca/P ratio of 1.4-1.5, hydroxyapatite was formed as secondary product. The crystallite size of β-TCP was in a range of 32.96-47.82 nm. Morphology changed due to Ca/P molar ratio in which the size of irregular shape β-TCP became bigger as Ca/P molar ratio increased from 1.0 to 1.3. The presence of hydroxyapatite in the product has not changed the morphology shape but reduced its grain size.
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Files | Size | Format | View |
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Synthesis of β-TCP by sol-gel method: variation of Ca/P molar ratio | 1070KB | download |