期刊
MATERIALS LETTERS
卷 65, 期 6, 页码 1003-1006出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2010.12.053
关键词
Hematite; Hydrothermal; Porous; Optical absorbance; Magnetic property
资金
- State Key Laboratory of Chemical Engineering, China [SKL-ChE-09A02]
- Project of Shandong Province Higher Educational Science and Technology Program, China [J10LB15]
- Excellent Middle-Aged and Young Scientist Award Foundation of Shandong Province, China [BS2010CL024]
Uniform monodisperse porous silk-worm pod-like hematite (alpha-Fe(2)O(3)) superstructures were efficiently obtained via a facile hydrothermal route. This was realized via the co-precipitation of FeCl(3) and NaOH solutions at room temperature in the presence of H(3)BO(3), followed by a mild hydrothermal treatment (150 degrees C, 12.0 h). The UV-vis band is mainly located in the far-UV region, with one intense broadband from 260 to 290 nm. The porous pod-like superstructures exhibit special magnetic properties with a remnant magnetization of 0.22 emu g(-1) and a high coercivity of 3315.5 Oe at room temperature, indicating the as-obtained porous pod-like superstructures of a promising candidate for gas sensors, lithium ion battery, photocatalysis, and water treatment. (C) 2011 Elsevier B.V. All rights reserved.
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