摘要
以氯化镁和氢氧化钠为反应物,添加表面活性剂十二烷基苯磺酸钠(SDBS),在水溶液中利用反向沉淀法制备针状纳米氢氧化镁粉体,其直径为9～12nm,长度为40～110nm。并应用X射线粉末衍射仪(XRD)、场发射扫描电子显微镜(FESEM)、高分辨透射电子显微镜(HRTEM)对所制备粉体的晶型结构、粒度、形貌进行表征。同时讨论了表面活性剂/分散剂对纳米氢氧化镁粉体形貌的影响。
Needle-like Mg（OH）2 nanoparicles, with diameters in the range of 9- 12nm and lengths of 40- 110nm, were synthesized in aqueous solution employing reversed precipitation in the presence of the surfactant sodium dodecyl benzene sulfonate （SDBS）, using magnesium chloride and sodium hydroxide as reactants. The obtained samples were characterized in terms of crystal structure, particle size and morphology by X-ray diffraction （XRD）, field emission scanning electron microscope （FESEM）, and transmission electron microscopy （TEM）. The effect of surfactant/dispersant on the morphologies of the as-prepared samples was discussed. The results show that needle-like Mg（OH）2 nanoparticles can be obtained in the presence of SDBS.
出处
《功能材料信息》
2006年第3期43-45,共3页
Functional Materials Information
基金
国家973计划资助项目(2004CB217808)
国家自然科学基金重大研究计划资助项目(90306014)
山西省自然科学基金资助项目(20051016)
