磁性纳米TiO_2粉体的制备  

Preparation of magnetic nanometer TiO_2

作　　者：林攀[1] 郭正轩[1] 李晓茜[1] 曹震[1] 雷晓庆[1] 何开棘[1] 王开明[1] 

机构地区：[1]辽宁科技大学纳米材料研究中心,辽宁鞍山114051

出　　处：《辽宁科技大学学报》2012年第1期22-24,29,共4页Journal of University of Science and Technology Liaoning

基　　金：国家自然科学基金资助项目(50272002;50372001);国家科技部863计划项目(2003AA302130)

摘　　要：使用自制的高强度机械搅拌反应器,通过两种不同的方案制备了磁性纳米TiO_2粉体。通过X射线衍射图谱对其晶体结构进行分析,透射电镜观测纳米粒子的粒径和分散性,VSM图比较它们的磁性能。结果表明:在本实验条件下,将Fe_3O_4混合于氨水溶液中,与Ticl,溶液反应后通过冷冻干燥的方法得到的磁性纳米TiO_2粉体纯度高,粉体分散性好,粒径分布范围窄,并且具有较好的超顺磁性。The magnetic nanometer TiO_2 is prepared in two ways by using the special liquid-phase precipitation method.Its crystal structure is analyzed by XRD,the diameters and dispersion of nano-particles are observed by TEM and their magnetic properties are compared by VSM.The result shows that the magnetic nanometer TiO_2 that is obtained by mixed Fe_3O_4,in aqueous ammonia and reflected with TiCl_4 with a freeze drying method has a high purity,good and narrow range of dispersion and better supe paramagnetic.

关 键 词：磁性 纳米TiO_2 粉体 

分 类 号：TQ586.1[化学工程—精细化工] O614.411[理学—无机化学]