摘要
以醋酸铅和氟化氨为原料,采用水热法在200℃下反应8h与制备了尺寸均匀的PbF2微球和多孔微球,利用X射线粉末衍射(XRD)和扫描电镜(SEM)对其结构与形貌进行了表征.结果表明,所制备的产物是直径分别为3μm和5μm左右的立方相PbF2微球及多孔微球.此外,研究了反应时间、柠檬酸和表面活性剂(CTAB)在反应溶液中的添加量对PbF2微球和多孔微球尺寸及形貌的影响.
Large-scale PbF2 microspheres and porous-microspheres with a uniform morphology were prepared by hydrothermal method at 200 ℃ for 8 h, using Pb（C2H3O2）2 and NH4F as the raw materials. The phase structure and morphology of the final products were characterized by X-ray diffraction （XRD） and scanning electron microscopy （SEM）. The result shows the prepared product of PbF2 with cubic structure and with uniform sphere-like morphology microspheres and porous-microspheres with the diameter about 3 μm and 5 μm respectively. The effects of reaction time, the amounts of citric acid and the amounts of CTAB in the synthesis solution on the size and morphology of the final products were investigated.
出处
《陕西科技大学学报（自然科学版）》
2010年第3期31-34,共4页
Journal of Shaanxi University of Science & Technology
基金
陕西省自然科学基金资助项目(2009JM6007)
关键词
水热合成
微观结构
氟化铅
hydrothermal synthesis
microstructure
fluoride leads
