高等学校化学学报 ›› 2014, Vol. 35 ›› Issue (5): 917.doi: 10.7503/cjcu20140114

• 研究论文: 无机化学 • 上一篇    下一篇

Fe3O4/TiO2纳米异质结构的制备及磁性

徐曼, 段为杰, 焦世惠(), 庞广生   

  1. 吉林大学化学学院, 长春 130012
  • 收稿日期:2014-02-18 出版日期:2014-05-10 发布日期:2014-04-17
  • 作者简介:联系人简介: 焦世惠, 女, 博士, 工程师, 主要从事纳米材料研究. E-mail:jiaosh@jlu.edu.cn
  • 基金资助:
    国家自然科学基金(批准号: 21071058, 21371066)资助

Preparation and Magnetic Performance of Fe3O4/TiO2 Hybrid Nanostructure

XU Man, DUAN Weijie, JIAO Shihui*(), PANG Guangsheng   

  1. College of Chemistry, Jilin University, Changchun 130012, China
  • Received:2014-02-18 Online:2014-05-10 Published:2014-04-17
  • Contact: JIAO Shihui E-mail:jiaosh@jlu.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(Nos.21071058, 21371066)

摘要:

以TiO2纳米线和Fe(NO3)3·9H2O为原料, 在一缩二乙二醇体系中通过溶剂热反应制备了Fe3O4纳米粒子/TiO2纳米线异质结构. 高分辨透射电子显微镜(HRTEM)观测结果表明, Fe3O4纳米粒子均匀地附着在TiO2纳米线上, 并与TiO2纳米线之间形成了有效的复合. 磁性研究结果表明, 与文献报道的同粒径纯相Fe3O4纳米粒子相比, 异质结构的阻隔温度点明显降低, 异质结构的形成对Fe3O4磁性产生了影响.

关键词: 纳米材料, 纳米异质结构, 磁性, 阻隔温度

Abstract:

Using TiO2 nanowires and Fe(NO3)3·9H2O as raw materials, Fe3O4 nanoparticles/TiO2 nanowires hybrid nanostructure was fabricated in a system with diethylene glycol as the solvent. High-resolution transmission electron microscopy(HRTEM) observation demonstrates that the Fe3O4 nanoparticles are addressed on the TiO2 nanowires. Effective connection forms between the Fe3O4 nanoparticles and TiO2 nanowires. Magnetic study shows that the hybrid nanostructure’s blocking temperature is significantly lower than that of pure Fe3O4 nanoparticles with the same diameters.

Key words: Nanomaterial, Hybrid nanostructure, Magnetic property, Blocking temperature

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