添加AOT的微乳液法制备纳米SnO_2及其表征  

Preparation and characterization of nanosize SnO_2 particles with AOT surfactant from water-in-oil micromulsions

作　　者：刘雪华[1,2,3] 唐电[2,3] 

机构地区：[1]福建工程学院材料科学与工程学院,福建福州350118 [2]福建省新材料制备与成形技术重点实验室,福建福州350116 [3]福州大学材料科学与工程学院,福建福州350116

出　　处：《福州大学学报（自然科学版）》2015年第4期542-547,共6页Journal of Fuzhou University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(11374053);福建省教育厅科研资助项目(JA12233)

摘　　要：采用AOT(二-乙基己基琥珀酸酯磺酸钠)为表面活性剂,以正庚烷为油相,以四氯化锡为前驱物,采用油包水型微乳液法制备了纳米Sn O2颗粒,并借助XRD、DTA-TG、FTIR、SEM等手段系统研究了制备温度、AOT质量、溶液p H值等因素对产物性能的影响.本实验体系中的最佳工艺参数为:p H=8,水-表面活性剂摩尔比1∶2,AOT质量0.6 g,锻烧温度600℃,保温时间2 h.在最佳试验条件下所制备的Sn O2粉末平均粒径为4.1 nm,较常规沉淀法制备的Sn O2颗粒细小且团聚少,具有更好的性能.Nanoparticles of tin oxide（ Sn O2） have been prepared from water- in- oil（ W/O） microemulsions consisting of Sn Cl4,water,AOT,and n- heptane. The effects of calcination temperature,AOT contents and p H values of solution on the properties of products were studied by XRD,DTA-TG,FTIR and SEM. Results show that the optimal condition in the system is： p H value of the solution was 8,the molar ratio of water to AOT was 1 ∶ 2,the content of AOT was 0. 6 g and the products was calcined at 600 ℃ for 2 h. The tin oxide powder was found to be less than 4. 1 nm in particle diameter and to be more disperse than it prepared by the chemical precipitation method.

关 键 词：AOT 微乳液法 SNO2 纳米 制备 表征 

分 类 号：O647.11[理学—物理化学] TQ610.494[理学—化学]