期刊
JOURNAL OF ENVIRONMENTAL MANAGEMENT
卷 92, 期 11, 页码 2939-2943出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jenvman.2011.07.006
关键词
Adsorption; Aniline; MCM-41; Template
资金
- National Natural Science Foundation of China [21073098]
- Research Fund for MOE [IRT-0927]
- Doctoral Program of Higher Education [20090031110015]
- Program for New Century Excellent Talents in University [NCET-10-0481]
The effect of the surfactant template cetyltrimethylammonium bromide (CAB) in MCM-41 on the adsorption of aniline was investigated. Various MCM-41 samples were prepared by controlling template removal using an extraction method. The samples were then used as adsorbents for the removal of aniline from aqueous solution. The results showed that the MCM-41 samples with the template partially removed (denoted as C-MCM-41) exhibited better adsorption performance than MCM-41 with the template completely removed (denoted as MCM-41). The reason for this difference may be that the C-MCM-41 samples had stronger hydrophobic properties and selectivity for aniline because of the presence of the template. The porosity and cationic sites generated by the template play an important role in the adsorption process. The optimal adsorbent with moderate template was achieved by changing the ratio of extractant; it has the potential for promising applications in the field of water pollution control. (C) 2011 Elsevier Ltd. All rights reserved.
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