Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10625476 | Ceramics International | 2014 | 9 Pages |
Abstract
Porous FeCO3 microspheres were synthesized via a facile surfactant- and template-free hydrothermal process. The diameters of FeCO3 microspheres are about 20±5 μm. Each FeCO3 microsphere was self-assembled with a number of trilobed wheel-like subunits. The influence of preparation conditions, such as temperature, reaction time and content of urea on the phase composition and morphology were investigated. Based on time-dependent experiments, we proposed the possible formation mechanism for the self-assembled FeCO3 micro-spheres. After calcination at 650 °C, α-Fe2O3 derived from FeCO3 retained the original size and morphology of FeCO3. The prepared α-Fe2O3 with the novel microstructure shows wide potential application as photocatalysts.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Tao Yang, Zhaohui Huang, Yangai Liu, Minghao Fang, Xin Ouyang, Meiling Hu,