| 光谱学与光谱分析 |
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| Removal of Methyl Orange from Aqueous Solution by Magnetic Carbon Nanotubes |
| HU Shu-wan1, LI Wen-jun1*, CHANG Zhi-dong1, WANG Huan-ying1, GUO Hui-chao1, ZHANG Jing-hua2, LIU Yang2 |
1. Department of Chemistry, School of Applied Science, University of Science and Technology Beijing, Beijing 100083, China
2. Beijing Center for Physical and Chemical Analysis, Beijing 100089, China |
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Abstract Ferrocene was used as a catalyst, and xylene as carbon source. Chemical vapor deposition method was used to synthesize carbon nanotubes (CNTs). The CNTs were treated by oxidation method with concentrated nitric acid. Magnetic carbon nanotubes were prepared by using chemical co-precipitation. The products were characterized by field emission scanning electron microscope. This paper is concerned with the adsorption of methyl orange by magnetic carbon nanotubes. The best experimental conditions were found. Adsorbent solution was analyzed by UV-Vis adsorption spectra. At the same time, desorption and re-adsorption of methyl orange from magnetic CNTs were studied.
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Received: 2010-04-19
Accepted: 2010-10-04
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Corresponding Authors:
LI Wen-jun
E-mail: wjli@sas.ustb.edu.cn
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