氨基酸-表面活性剂体系合成CaCO_3晶体  

CaCO_3 Growth in L-Histidine-Surfactant System

作　　者：吴刚[1] 王小锋 陈昌云 张敏敏[1] 章守权[1] 陈豫 

机构地区：[1]滁州学院化学和生命科学系,滁州239012 [2]晓庄学院化学系

出　　处：《应用化学》2010年第5期567-571,共5页Chinese Journal of Applied Chemistry

基　　金：安徽省教育厅自然科学基金(KJ2009B104);安徽省应用化学重点建设学科(教高200802187C)资助项目

摘　　要：以L-组氨酸和十二烷基苯磺酸钠(SDBS)作为CaCO3生长调节剂,用粉末X射线衍射、红外光谱测试技术对生成的CaCO3晶体进行了表征,扫描电子显微镜对生成的CaCO3晶体形貌进行了分析,研究了表面活性剂浓度、温度和溶剂的组成对CaCO3晶型和形状的影响。结果表明,在实验条件下表面活性剂的浓度对CaCO3晶型没有影响,但影响晶体的形状,温度和溶剂的组成对CaCO3晶型和晶体形状有很大的影响。The crystal growth of CaCO_3 with dodecylbenzenesulfonate sodium（SDBS） and L-histidine as growth regulators were studied were characterized with powder X-ray diffraction and infrared spectrometry.We also used scanning electron microscopy to analyze the crystal shapes of generated CaCO_3 in order to study the effect of surfactant concentration,temperature and solvent composition on the crystal morphology and shape of CaCO_3.The results show that under experimental conditions,the concentration of surfactant SDBS has no effect on the crystal morphology of CaCO_3,but affect the shapes of the crystals,in the mean time,the temperature and solvent composition greatly affect the crystal morphology and crystal shape of CaCO_3.

关 键 词：L-组氨酸 十二烷基苯磺酸钠 CACO3 方解石 球霰石 

分 类 号：O611.4[理学—无机化学]