Synthesis and character investigation of magnetic alumina microspheres

International Conference on Manufacturing Technology, Materials and Chemical Engineering

机械制造;材料科学;化学工业

Ting-Ting, He^1 ; Qing-Tao, Fu^1 ; Chen-Guang, Liu^2

School of Chemistry and Resources Environment, LinYi University, Linyi

276000, China^1

College of Chemical Engineering, China University of Petroleum(east), Qingdao

266580, China^2

关键词: Composite microspheres;    Magnetic Carriers;    Oil column;    Pore volume;    Shell structure;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/392/2/022017/pdf
DOI  :  10.1088/1757-899X/392/2/022017

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Magnetic alumina microspheres with Fe3O4 core/Al2O3 shell structure were synthesized by the oil column method. Fe3O4/SiO2/Al2O3 particles showed to be fit for applications as a magnetic carrier due to their magnetic properties and pore structure. The specific surface area and pore volume of the Fe3O4/SiO2/Al2O3 composite microspheres calcined at 500°C were 200 m2/g and 0.77 cm3/g, respectively.