油酸对复分解法制备纳米碳酸钙的影响  

Effects of Oleic Acid on Calcium Carbonate Nanoparticles Synthesized by Double Decomposition Method

作　　者：杨立静[1] 杨凤东 陈银霞[1] 纪献兵[1] 

机构地区：[1]中国环境管理干部学院,秦皇岛066004 [2]秦皇岛市山海关排水管理处,秦皇岛066004

出　　处：《材料导报》2013年第22期55-58,共4页Materials Reports

基　　金：中国科学院兰州化学物理研究所固体润滑国家重点实验室开放课题(1109);河北省科学技术研究与发展计划课题(12273610);秦皇岛市科学技术研究与发展计划项目(2012021A119;2012021A120)

摘　　要：采用复分解法制备了不同形貌的纳米碳酸钙颗粒,并用TEM、SEM、XRD和FT-IR等先进测试方法对产物进行了表征;研究了油酸的加入、反应温度对纳米碳酸钙的影响,结果表明,油酸可对产物的形态结构进行有效调控并且可以改变产品的表面性质,同时反应温度显著影响纳米CaCO3的形貌和晶型,改变反应温度可以得到文石和层状球霰石纳米碳酸钙。Calcium carbonate nanoparticles with different morphology were obtained in the presence of oleic acid via a double decomposition method. The products were characterized by transmission electron microscopy （TEM）, scanning electron microscopy （SEM）, X-ray diffraction （XRD） and Fourier transform infrared spectroscopy （FT-IR）. The effects of oleic acid and temperature on calcium carbonate were analyzed. The results demonstrate that the mor-phology and surface properties of calcium carbonate could be controlled by oleic acid. The influence of reaction tempe rature on calcium carbonate was also studied. Results show that temperature has a significant influence on the poly- morphs and morphology of calcium carbonate. Aragonite and lamellar vaterite calcium carbonate nanoparticles were obtained.

关 键 词：纳米碳酸钙 油酸 复分解 晶型 形貌 

分 类 号：TQ132.32[化学工程—无机化工]