尺寸可控的单分散四氧化三铁微球的省时制备（英文）  

A Time-Saving Method to Prepare Monodisperse Fe_3O_4 Microspheres with Controllable Sizes and Morphologies

作　　者：王丹[1,3] 刘传勇[2] 龙玥 宋恺 黄维[1] WANG Dan LIU Chuan-Yong LONG Yue SONG Kai HUANG Wei(Key Laboratory for Organic Electronics and Information Displays ＆ Institute of Advanced Materials （IAM）, Jiangsu National Synergetic Innovation Centre for Advanced Materials （SICAM）, Nanjing University of Posts ＆ Telecommunications, Nanjing 210023, P. R. China Beijing National Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China)

机构地区：[1]南京邮电大学先进生物与化学制造协同创新中心,有机电子与信息显示国家重点实验室培育基地,南京210023 [2]中国科学院化学研究所,北京100190 [3]中国科学院理化技术研究所,北京100190

出　　处：《物理化学学报》2017年第11期2310-2316,共7页Acta Physico-Chimica Sinica

基　　金：supported by the National Natural Science Foundation of China(U1430128)~~

摘　　要：用溶剂热法制备了单分散性较好、尺寸可控,饱和磁化强度高的四氧化三铁磁性微球,并用多种手段调控制备了不同尺寸和形貌的四氧化三铁微球,如氯化铁、醋酸钠、水的量以及反应时间。结果表明所得四氧化三铁产物纯净、结晶度高,形状近乎球形、无团聚,大小均一、具有很好的单分散性。此方法可以在2-4 h内制备400-700 nm范围内尺寸可控、高饱和磁化强度的四氧化三铁微球,产率达到了94%。Monodisperse Fe3O4 microspheres with tunable diameters and high magnetic saturation were synthesized by a solvothermal reduction method. It was found that the morphology and structure of the Fe3O4 microspheres could be tuned by simply altering the amount of the reactants such as ferric chloride, sodium acetate, water, and the reaction time. The Fe3O4 microspheres obtained via this method possessed high purity, crystallinity, and a nearly spherical shape. Furthermore, they were monodispersed and no aggregation was found. Such monodisperse Fe3O4 microspheres had tunable diameters of 400- 700 nm and the fabrication time was only 2-4 h. The products showed high magnetic saturation values, and their yields were typically more than 94%.

关 键 词：单分散四氧化三铁微球 溶剂热法 省时 可控 

分 类 号：TQ138.11[化学工程—无机化工]