期刊
CARBOHYDRATE POLYMERS
卷 155, 期 -, 页码 294-302出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2016.08.088
关键词
Hydrophobic; Cotton fiber; Nitrobenzene removal; Adsorption; Kinetics
资金
- Central University Basic Scientific Research Project of China [2572014DB01]
- National Natural Science Foundation of China [31670592]
- Research Funds for the Returned People of Heilongjiang Province [LC2016008]
In order to improve the superhydrophobic and oil-wet properties of raw cotton fibers come from Jiangsu province, China. A novel adsorbent, hydrophobic cotton fibers (HCF) with an excellent superhydrophobic and larger length was synthesized via modified sol-gel method and examined for the removal of nitrobenzene in aqueous solution. Results show that the treated raw cotton fibers exhibited outstanding non-wettability with the WCA of 152 degrees and the larger length of 0.2-0.4 cm, which offers an opportunity to separation in for the removal of nitrobenzene. It was found that adsorption isotherm and kinetics of nitrobenzene onto HCF were well described by the Freundlich and pseudo-second-order kinetic models, respectively. The thermodynamic data showed that the nitrobenzene adsorption onto HCF was a spontaneous, endothermic and physisorption reaction. The monolayer adsorption capacity of nitrobenzene was found to be 16.85 mg/g at 30 degrees C. (C) 2016 Elsevier Ltd. All rights reserved.
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