1. Growth of BiFeO3 Microcylinders under a Hydrothermal Condition
- Author
-
J. L. Jiang, H. Yang, T. Xian, Haimin Zhang, L. J. Di, Z.Q. Wei, W.J. Feng, and Jiqiang Ma
- Subjects
Materials science ,Article Subject ,Chemical engineering ,Hydrothermal reaction ,lcsh:Technology (General) ,Photocatalysis ,Antiferromagnetism ,lcsh:T1-995 ,General Materials Science ,Nanotechnology ,Magnetic hysteresis ,Sunlight irradiation ,Hydrothermal circulation - Abstract
BiFeO3microcylinders were synthesized via a hydrothermal condition. SEM observation reveals that with increasing the hydrothermal reaction time from 6 to 15 h, the microcylinders grow from ~0.7 to ~4.1 μm in height, whereas their diameter remains to be 3.7-3.8 μm with a minor change. The microcylinders are mainly made up of sphere-like grains of 100–150 nm in size. A possible growth mechanism of the BiFeO3microcylinders is proposed. The photocatalytic activity of the as-prepared BiFeO3samples was evaluated by the degradation of acid orange 7 under simulated sunlight irradiation, revealing that they possess an appreciable photocatalytic activity. Magnetic hysteresis loop measurement shows that the BiFeO3microcylinders exhibit a typical antiferromagnetic behavior at room temperature.
- Published
- 2015