| 气液法制备文石型碳酸钙晶须及影响条件研究 |
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| 引用本文： | 许肖云,梁兵,陈丽萍,张凯,唐红军,王洁,覃钦晏.气液法制备文石型碳酸钙晶须及影响条件研究[J].内江师范学院学报,2012,27(6):37-41. |
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| 作者姓名： | 许肖云 梁兵 陈丽萍 张凯 唐红军 王洁 覃钦晏 |
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| 作者单位： | 遂宁市环境监测中心站,四川遂宁,629000 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 研究了在MgCl2-Ca（OH）2--CO2体系中，气液法制备碳酸钙晶须的形貌和影响条件．结果显示，在此条件下制备的是具有较好形貌和高长径比，且分布均一的文石型碳酸钙晶须，并利用扫描电镜（SEM）、X-射线粉末衍射（PXRD）和傅里叶转换红外（FT—IR）光谱图等手段对其进行了表征．其最佳制备工艺为：反应温度为80℃，CO2的流量为5mL／min，搅拌速度为250r／min，MgCl2溶液浓度为0．4mol／L．
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| 关 键 词： | 碳酸钙 晶须 文石型 形貌 |
Preparation of Aragonite Calcium Carbonate Crystal Whiskers by Gas-liquid Method and Its Influencing Factors Study |
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| XU Xiao-yun,LIANG Bing,CHEN Li-ping,ZHANG Kai,TANG Hong-jun,WANG Jie,QIN Qin-yan.Preparation of Aragonite Calcium Carbonate Crystal Whiskers by Gas-liquid Method and Its Influencing Factors Study[J].Journal of Neijiang Teachers College,2012,27(6):37-41. |
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| Authors: | XU Xiao-yun LIANG Bing CHEN Li-ping ZHANG Kai TANG Hong-jun WANG Jie QIN Qin-yan |
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| Institution: | (Suining Environmental Monitoring Center,Suining,Sichuan 629000,China) |
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| Abstract: | The morphology and influencing factors of CaCO3 crystal whiskers were investigated by means of gas-liquid method in the system of MgCl2-Ca(OH)2-CO2.The results indicate that the aragonite calcium carbonate(CaCO3) crystals thus prepared are characteristic of a nice external form with a rather satisfactory high aspect ratio and evenly-distributed whiskers.The CaCO3 crystals were then characterized by scanning electron microscopy(SEM),powder X-ray diffraction(PXRD) and Fourier transform infrared(FT-IR) spectroscopy.The optimum reaction conditions of them are as follows:reaction temperature is at 80 ℃,CO2 flow rate is 5 mL/min,stirring speed is 250 r/min,and concentration of MgC12 is 0.4 mol/L. |
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| Keywords: | calcium carbonate whiskers aragonite morphology |
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