期刊
CHEMICAL ENGINEERING JOURNAL
卷 169, 期 1-3, 页码 180-185出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2011.03.002
关键词
Ammonia; Activated carbon; Oil palm empty fruit bunch; 2,4-Dichlorophenol; Adsorption; Isotherm; Kinetics
资金
- Universiti Sains Malaysia under the Research University (RU) [1001/PJKIMIA/814003]
In this study, an oil palm empty fruit bunch-based activated carbon was modified using ammonia aqueous solution. The effect of the chemical modification on the adsorption capacity of modified activated carbon (MAC) for 2,4-dichlorophenol (2,4-DCP) adsorption was investigated. The monolayer adsorption capacity of MAC was 285.71 mg/g at 30 degrees C. Adsorption isotherm fitting revealed that Langmuir model was applicable for the MAC. The adsorption kinetics of 2,4-DCP onto MAC was described by the pseudo-second-order kinetic model. The surface modification of the activated carbon using ammonia was shown to be able to increase its adsorption capacity for 2.4-DCP. (C) 2011 Elsevier B.V. All rights reserved.
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