CaCO_3超细粉末的低温水热合成与表征  

Low temperature hydrothermal synthesis and characterization of ultrafine calcium carbonate

作　　者：邢蓉[1] 胡效亚[1] 张永才[1] 刘燕[1] 

机构地区：[1]扬州大学化学化工学院

出　　处：《化学研究与应用》2005年第2期252-254,共3页Chemical Research and Application

基　　金：国家自然科学基金 (No .2 0 175 0 2 3 );江苏省自然科学基金(No .BK2 0 0 2 0 45 )资助项目

摘　　要：Ultrafine CaCO3 powder was prepared by low temperature hydrothermal method.The effects of the synthetic parameter such as different starting materials and reaction temperature on the properties of the resultant products were studied.The products were characterized by X-ray diffraction（XRD）,Fourier transform infrared spectrum（FTIR）,transmission electron microscopy （TEM）,thermogravimetric analytical and differential scanning calorimetry（TGA-DSC）.The analytical results indicated that the hydrothermally-derived CaCO3 powders from Ca（OH）2 and Na2CO3 at 120℃ for 20 h,mainly consisted of cubic-like crystallites with the sizes ranging from 130 to 650nm.Ultrafine CaCO_3 powder was prepared by low temperature hydrothermal method.The effects of the synthetic parameter such as different starting materials and reaction temperature on the properties of the resultant products were studied.The products were characterized by X-ray diffraction(XRD),Fourier transform infrared spectrum(FTIR),transmission electron microscopy (TEM),thermogravimetric analytical and differential scanning calorimetry(TGA-DSC).The analytical results indicated that the hydrothermally-derived CaCO_3 powders from Ca(OH)_2 and Na_2CO_3 at 120℃ for 20 h,mainly consisted of cubic-like crystallites with the sizes ranging from 130 to 650nm.

关 键 词：碳酸钙 水热合成 超细粉末 表征 

分 类 号：O611[理学—无机化学]