J. Mater. Sci. Technol. ›› 2006, Vol. 22 ›› Issue (03): 329-332.

• 论文 • 上一篇    下一篇

Preparation of Fe3O4 Film by in-situ Oxidative Hydrolysis on Chitosan

Suwei Yao   

  1. School of Chemical Engineering and Technology
  • 收稿日期:2005-08-30 修回日期:2005-11-15 出版日期:2006-05-28 发布日期:2009-10-10
  • 通讯作者: Suwei Yao

Preparation of Fe3O4 Film by in-situ Oxidative Hydrolysis on Chitosan

Suwei YAO, Zhaohui ZHAO, Weiguo ZHANG, Hongzhi WANG   

  1. SUGIYAMA Laboratory of Surface Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
  • Received:2005-08-30 Revised:2005-11-15 Online:2006-05-28 Published:2009-10-10
  • Contact: Suwei YAO

关键词: Fe3O4, film, In-situ, Oxidative, hydrolysis

Abstract: The Fe3O4 films were prepared by in-situ oxidative hydrolysis on chitosan. The structures and characteristics of the prepared Fe3O4 films were investigated by X-ray diffractometry (XRD), scanning electron microscopy (SEM), atom force microscopy (AFM), vibrating sample magnetometry (VSM) and thermogravimetric-differential thermal analysis (TG-DTA). The results show that, (1) the as-synthesized Fe3O4 films are pure Fe3O4 with cubic inverse spinel structure; (2) the network structured film can be obtained at lower temperature, and the compact particle film at higher temperature; (3) the prepared Fe3O4 films are super-paramagnetic, and the saturation magnetization is improved with increasing the reaction temperature, which is 49.03 emu/g at 80℃; (4) the temperature of phase transformation from F Fe3O4 to α-Fe2O3 is about 495℃. Besides, the formation mechanism of Fe3O4 film was also proposed.

Key words: Fe3O4 film, in-situ, Oxidative hydrolysis, Chitosan