Microwave-Assisted Synthesis of Magnetite Nanosheets in Mixed Solvents of Ethylene Glycol and Water.
Authors: Wang, Wei-Wei1; Zhu, Ying-Jie1
Source: Current Nanoscience, Volume 3, Number 2, May 2007 , pp. 171-176(6)
Publisher: Bentham Science Publishers
- Free Content
- New Content
- Subscribed Content
- Free Trial Content
Abstract:
Magnetite (Fe3O4) nanosheets have been prepared by a simple microwave heating method using ferrous sulfate and sodium hydroxide in mixed solvents of ethylene glycol and water. Fe3O4 nanosheets were obtained by the oxidation of the deep green precursor with the sheet morphology in an alkaline solution. Our experiments show that iron salt, the ratio of OH- to iron ions and the heating method have effects on the morphology or crystalline phase of Fe3O4. Both Fe3O4 nanosheets and nanoparticles exhibit a small hysteresis loop at room temperature. The saturation magnetization of Fe3O4 nanosheets is smaller than that of Fe3O4 nanoparticles.Keywords: nanoparticles; energy dispersive spectroscopy; selected-area electron diffraction (SAED) patterns; high-resolutiontransmission electron microscopy (H; ferrous salts
Document Type: Research article
DOI: 10.2174/157341307780619233
Affiliations: 1: State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P. R. China.
- Free Content
- New Content
- Subscribed Content
- Free Trial Content
Click here for Page Help