东北大学学报(自然科学版) ›› 2013, Vol. 34 ›› Issue (2): 205-208.DOI: -

• 材料与冶金 • 上一篇    下一篇

Fe2O3-TiO2纳米复合颗粒的激光控制合成研究

陈岁元,张一坤,DanielWellburn,刘常升   

  1. (东北大学材料各向异性与织构教育部重点实验室,辽宁沈阳110819)
  • 收稿日期:2012-08-08 修回日期:2012-08-08 出版日期:2013-02-15 发布日期:2013-04-04
  • 通讯作者: 陈岁元
  • 作者简介:陈岁元(1964-),男,甘肃天水人,东北大学教授,博士生导师;刘常升(1963-),男,内蒙古奈曼旗人,东北大学教授,博士生导师.
  • 基金资助:
    国家自然科学基金国际(地区)合作与交流项目(51250110080);教育部留学回国人员科研启动基金资助项目(421);中央高校基本科研业务费专项资金资助项目(N100702001).

Synthesis of Fe2O3TiO2 Nanocomposite Particles by Pulsed Laser Control

CHEN Suiyuan, ZHANG Yikun, Daniel WELLBURN, LIU Changsheng   

  1. Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education, Northeastern University, Shenyang 110819, China.
  • Received:2012-08-08 Revised:2012-08-08 Online:2013-02-15 Published:2013-04-04
  • Contact: CHEN Suiyuan
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摘要: 以微米级的5%Fe2O3粉末和95%TiO2粉末(以质量分数计)形成混合靶材,利用脉冲激光气相蒸发-液相收集控制合成新方法制备Fe2O3-TiO2复合纳米颗粒.采用透射电子显微镜(TEM)、X射线衍射(XRD)、红外光谱、UV光谱检测等测试技术,对实验制备的样品的形貌、组织结构、光吸收性能及合成机理等进行了系统研究.结果表明:用气相蒸发-液相收集激光法制备的Fe2O3-TiO2纳米颗粒外观呈球形,平均粒径约为40nm,颗粒呈链状连接趋势;Fe2O3的复合改善了TiO2纳米颗粒的磁性.对样品在800~200nm区间进行光谱分析,发现Fe2O3复合TiO2后,样品光谱发生红移,改善了TiO2纳米颗粒的光催化性能.

关键词: 脉冲激光, Fe2O3-TiO2复合纳米颗粒, 合成, 光谱红移

Abstract: Micron powders of 5wt% Fe2O3and 95wt% TiO2 were mixed to form a target for preparing Fe2O3TiO2 nanocomposite particles using the method of pulsed laser gas phase evaporatingliquid phase collecting. The morphology, microstructure, optical absorption properties and the synthetic mechanism of the prepared sample were characterized using the transmission electron microscopy, Xray diffraction, infrared spectroscopy, and UV spectrum detecting technology, respectively. The results showed that the prepared Fe2O3TiO2 particles were sphereshaped with average diameter of about 40nm and they linked up with one another like a chain. The Fe2O3dopant improved the magnetism of the TiO2 nanoparticles. The spectral analysis of the Fe2O3TiO2 particles in the range of 800-200nm exhibited redshift, indicating that the photocatalytic performance of TiO2 nanoparticles was improved.

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