A novel type of adsorbent was prepared by modifying bentonite with N-2-hydroxypropyl trimethyl ammonium chloride chitosan (HACC) with cetyl trimethylammonium bromide (CTAB). The adsorbent was named CTAB-HACC bentonite. Its characteristics were investigated using thermogravimetric, Fourier-transform infrared spectroscopy (FTIR) and X-ray diffraction. The adsorption of phenol onto CTAB-HACC bentonite was evaluated by changing various parameters, such as contact time, adsorbent dosage, initial pH of the solution, and temperature. The maximum adsorption was observed at pH 12. Adsorption of phenol on CTAB-HACC bentonite favored at lower temperature and established the equilibrium in 30 min. The adsorption efficiency reached 82.1%, and the adsorption capacity was 7.12 mg/g from the phenol solution with a concentration of 500 mg/L at pH 12.0 and 20 °C.
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Research Article|
July 01 2011
Preparation and characterization of CTAB-HACC bentonite and its ability to adsorb phenol from aqueous solution
Ruihua Huang;
1College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China
E-mail: huangrh20022002@yahoo.com.cn
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Dongsheng Zheng;
Dongsheng Zheng
2College of Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
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Bingchao Yang;
Bingchao Yang
3Xi'an Institute of Geology and Mineral Resource, Xi'an 710054, China
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Bo Wang;
Bo Wang
1College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China
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Zengqiang Zhang
Zengqiang Zhang
1College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China
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Water Sci Technol (2011) 64 (1): 286–292.
Article history
Received:
January 18 2011
Accepted:
March 03 2011
Citation
Ruihua Huang, Dongsheng Zheng, Bingchao Yang, Bo Wang, Zengqiang Zhang; Preparation and characterization of CTAB-HACC bentonite and its ability to adsorb phenol from aqueous solution. Water Sci Technol 1 July 2011; 64 (1): 286–292. doi: https://doi.org/10.2166/wst.2011.582
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