| 碳酸钙微米球的制备与表征 |
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| 引用本文： | 陈先勇,唐琴,刘代俊. 碳酸钙微米球的制备与表征[J]. 化学研究与应用, 2012, 0(2): 314-317 |
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| 作者姓名： | 陈先勇 唐琴 刘代俊 |
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| 作者单位： | 四川大学化工学院;湖北民族学院 |
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| 基金项目： | 国家自然科学基金项目(21076131)资助;湖北恩施州科技局重点项目(2009A33)资助 |
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| 摘 要： | 采用醋酸钙和碳酸钠为原料,在反应温度为5℃和柠檬酸三钠质量百分浓度为15%的条件下,采用沉淀法合成出了粒度为1～4μm、分散性好的球形碳酸钙粉体。用扫描电子显微镜(SEM)、X射线衍射仪(XRD)、红外光谱仪(IR)、原子力扫描探针显微镜(ASPM)、光学显微镜、粒度分析仪等对样品进行了表征,并用光学显微镜跟踪考察了碳酸钙微米球的形成过程。结果表明,碳酸钙微米球是由大量纳米级颗粒组装而成。
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| 关 键 词： | 碳酸钙 球形 沉淀法 柠檬酸三钠 |
Preparation and characterization of calcium carbonate micro-spheres |
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| CHEN Xian-yong,TANG Qin,LIU Dai-jun. Preparation and characterization of calcium carbonate micro-spheres[J]. Chemical Research and Application, 2012, 0(2): 314-317 |
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| Authors: | CHEN Xian-yong TANG Qin LIU Dai-jun |
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| Affiliation: | 1(1.College of Chemical Engineering,Sichuan University,Chengdu 610065,China; 2.Hubei University for Nationalities,Enshi 445000,China) |
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| Abstract: | The uniform spherical calcium carbonate particles with granular size 1~4μm were prepared from a calcium acetate and sodium calcium solution at 5℃ by using precipitation method,and mass percent concentration of trisodium citrate 15%.The obtained CaCO3 samples were characterized by means of Scanning electron microscope(SEM),X-ray diffraction(XRD),Fourier transform infrared spectroscopy(FT-IR),Atomic force scanning probe microscopy(ASPM),Optical microscopy and Grain size analyzer.The formation process of calcium carbonate micro-spheres are observed though optical microscopy.The results showed that the calcium carbonate micro-spheres were assembled by a large number of nanometer particles. |
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| Keywords: | calcium carbonate spherical precipitation method trisodium citrate |
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