期刊
APPLIED SURFACE SCIENCE
卷 257, 期 24, 页码 10621-10627出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2011.07.060
关键词
Activated carbon; Cationic red X-GRL; Adsorption; Isotherm; Kinetic; Thermodynamics
类别
资金
- National Natural Science Foundation of China [50802045, 20975056/B050902]
- SRF for ROCS, SEM
- Middle-aged and Youth Scientist Incentive Foundation of Shandong Province [BS09018]
- Taishan Scholar Program of Shandong Province, China
Enteromorpha prolifera was pyrolyzed to prepare activated carbon using chemical activation by zinc chloride. The effect of activation parameters such as activation temperature, weight ratio ( Enteromorpha prolifera to ZnCl2), and activation time was investigated. The BET results showed that the surface area and pore volume of activated carbons were achieved as high as 1722 m(2)/g and 1.11 cm(3)/g, respectively, in the optimal activation conditions. Batch adsorption studies were carried out to study the adsorption properties of cationic red X-GRL onto activated carbon by varying the parameters like initial solution pH, contact time, and temperature. The kinetic studies showed that the adsorption data followed a pseudo second-order model. The isotherm analysis indicated that the adsorption data could be represented by the Langmuir isotherm model. The Langmuir monolayer adsorption capacity of cationic red X-GRL was estimated as 263.16 mg/g at pH 6.0. (C) 2011 Elsevier B.V. All rights reserved.
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