使用一种无表面活性剂辅助的室温合成方法,通过反应物配比的简单调控,实现了碱式碳酸铅单晶胶体纳米结构的简易合成。改用水热反应条件,基于奥斯特瓦尔德熟化效应,则合成出多边形片状碱式碳酸铅的单晶微纳结构,并通过XRD、FTIR、SEM和TEM等手段对其进行表征。基于实验结果,提出了该类微纳结构的形成机理。
Single crystal colloidal structures of basic lead carbonate ( Pb3 ( CO3 ) 2 ( OH ) 2 ) were controllable synthesized by a simple precipitating method through changing the molar ratios of Pb( NO3 )2 to Na2CO3 at room temperature. However, micro-scale polygonal plate structures for Pb3 (CO3)2 (OH)2 can be obtained due to the effect of the Ostwald ripening if the synthesis systems were underwent hydrothermal treatments at 200℃. The products are characterized by a series of techniques, such as XRD, SEM,TEM and FHR. The formation mechanisms of the nanostructures are proposed based on the experimental results.