P123/Mg^(2+)水溶液中CaCO_3结晶及形貌的调控研究  

Synthesis of CaCO_3 with different morphologies in P123/Mg^(2+) aqueous solution

作　　者：王树乔[1] 曹洁明[1] 郑明波[1] 

机构地区：[1]南京航空航天大学材料科学与技术学院纳米材料研究所,江苏南京210016

出　　处：《山西化工》2010年第1期8-13,共6页Shanxi Chemical Industry

摘　　要：在三嵌段共聚物P123与Mg2+的混合水溶液中,通过控制反应条件对CaCO3的微粒形貌进行调控。探讨了Mg2+浓度、反应时间、反应温度及P123浓度对CaCO3粒子形貌和晶型的影响。采用扫描电子显微镜(SEM)、X射线粉末衍射仪(XRD)对合成样品进行了表征。结果表明,Mg2+与Ca2+的质量比对CaCO3粒子形貌和晶型具有重要的影响。Different morphologies of CaCO3 have been synthesized through controlling the P123 concentration in the triblock copolymer P123 and Mg2＋ mixed aqueous solution.The morphologies and structures of samples have been characterized by SEM and XRD.The results indicated that the ratios of Ca2＋ and Mg2＋ in the mixture solution drastically changed both the morphology and polymorph of the CaCO3 crystals.

关 键 词：CaCO_3 三嵌段共聚物P123 MG^2+ 结晶 形貌 

分 类 号：O645[理学—物理化学] O647[理学—化学]