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    张敏, 徐云龙, 赵崇军, 钱秀珍. 乙二醇-水体系中球霰石CaCO3的调控合成[J]. 华东理工大学学报（自然科学版）, 2011, (1): 55-59.
    引用本文: 张敏, 徐云龙, 赵崇军, 钱秀珍. 乙二醇-水体系中球霰石CaCO3的调控合成[J]. 华东理工大学学报（自然科学版）, 2011, (1): 55-59.
    shu
    ZHANG Min, XU Yun-long, ZHAO Chong-jun, QIAN Xiu-zhen. Controlled Synthesis of Vaterite Calcium Carbonate in EG-H2O System[J]. Journal of East China University of Science and Technology, 2011, (1): 55-59.
    Citation: ZHANG Min, XU Yun-long, ZHAO Chong-jun, QIAN Xiu-zhen. Controlled Synthesis of Vaterite Calcium Carbonate in EG-H2O System[J]. Journal of East China University of Science and Technology, 2011, (1): 55-59.
    shu

    乙二醇-水体系中球霰石CaCO3的调控合成

    Controlled Synthesis of Vaterite Calcium Carbonate in EG-H2O System

      摘要
    • 摘要: 以乙二醇(EG)-水为介质，研究了在Ca(CHCOO)2和NaHCO3体系中球霰石CaCO3(V-CaCO3)的可控合成方法。采用X射线粉末衍射仪(XRD)、透射电子显微镜(TEM)、扫描电子显微镜(SEM)对CaCO3晶型和形貌进行了表征，考察了反应温度、搅拌速率和体系中EG体积分数等合成条件对V-CaCO3生长过程和晶型结构的影响。结果表明：在乙二醇-水中较温和的条件下可合成纯相的V-CaCO3，调控温度、搅拌速率或EG体积分数等实验条件可以实现球霰石晶型CaCO3的可控生长。

       

      Abstract: Controlled synthesis of vaterite calcium carbonate (V-CaCO3) in the mixture of Ca(CH3COO)2 and NaHCO3 solutions by using ethylene glycol-H2O (EG-H2O) as solvent was investigated. The crystal form and morphology of CaCO3 were characterized by X-ray diffraction, transmission electron microscopy (TEM) and scanning electron microscopy (SEM). The effects of reaction temperature, stirring speed and the volume fraction of EG on the growth of crystals and crystal form were observed. The results showed that V-CaCO3 was synthesized in EG-H2O system at mild temperature, and the controllable growth of V-CaCO3 was easily obtained by controlling the temperature, stirring speed and the content of EG.

       

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