Preparation and Characterization of γ-Fe2O3-ZnFe2O4 Composite Nanoparticles

摘要：

　　Using a chemically induced transition in an FeCl2 solution, y-Fe2O3 nanoparticles can be prepared fiom an amorphous precursor composed of FeOOH and Mg(OH)2.Surface modification by adding ZnCl2 during liquid-phase synthesis was attempted.The magnetization, morphology, crystal structure, and chemical species of as-prepared samples were characterized by vibrating sample magnetometer (VSM), transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray energy-dispersive spectroscopy (EDX), and X-ray photoelectron spectroscopy (XPS).The experimental results showed that the surface of the γ-Fe2O3 nanoparticles can be modified by adding ZnC12 to form composite nanoparticles with a γ-Fe2O3/ZnFe2O4 ferrite core coated with Zn(OH)2 and absorbed FeCl3.6H2O; this modification can be enhanced by additional NaOH.

关键词： Nanoparticles Modification Composite Preparation Characterization

作者: Long-long Chen Jun-ming Li Xiao-min Gong Jian Li

作者单位: School of Physical Science & Technology, Southwest University, Chongqing 400715, P.R.China

会议类型: 国际会议

会议名称: The Eighth China National Conference on Functional Materials and Applications(第八届中国功能材料及其应用学术会议)

会议地点: 哈尔滨

会议语种:英文

页码: 152-157

在线出版日期: 2013-08-23（万方平台首次上网日期，不代表论文的发表时间）