| 光谱学与光谱分析 |
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| Preparation by Template Method and Spectral Characterization of α-MoO3 Nanorods and Nanometer Rectangular Pieces |
| LIU Ying1,2, FENG Jin-chao1, LI Jing2 |
| 1. College of Life and Environmental Science, Minzu University of China, Beijing 100081, China2. College of Chemistry and Environmental Science, Inner Mongolia Normal University, Huhhot 010022, China |
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Abstract α-MoO3 was paid special attention to nano scale with its layered crystal structure and potential applications in material chemistry fields. In the present paper, (NH4)6Mo7O24·4H2O and hexadecyl trimethyl ammonium bromide (CTAB) were proposed as molybdenum precursor and template agent, respectively, and the precursor was prepared by statistic ion exchange with strong acidic ion exchange resin (R-H). The precursor can be transformed into α-MoO3 nanorods and nanometer rectangular small pieces via calcining precursor at 600 ℃ for different times. The phasestate, structure and morphology of samples were identified by FTIR, XRD, TEM and SEM. The α-MoO3 nanorods with the length of about 1~1.6 μm, the diameter of about 0.10~0.20 μm and the ratio of length to diameter of 8, and the nanometer rectangular small pieces with the length of about 0.14~0.18 μm, the width of about 60~80 nm and the thickness of 28~32 nm, were obtained after 600 ℃ sintering for 4 and 8 h. This preparation procedure is simple, without the need for artificially adjusting the pH, redundantly washing can be avoided, the resin can be regenerated and NH4Cl was recycled without environmental pollution.
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Received: 2011-05-20
Accepted: 2011-09-28
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Corresponding Authors:
LIU Ying
E-mail: liuying430@yahoo.com.cn, dxlyy430@yahoo.com.cn
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