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Received May 20, 2009
Accepted November 19, 2009
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Production and characterization of activated carbon derived from brewer’s yeast
Key Laboratory of Catalysts and Materials Science of Hubei Province, College of Chemical and Material Science, South-central University for Nationalities, Wuhan 430-074, China 1Department of Environmental Engineering, Chonbuk National University, Jeonbuk 561-756, Korea
cuilonger@hotmail.com
Korean Journal of Chemical Engineering, September 2010, 27(5), 1476-1482(7), 10.1007/s11814-010-0227-2
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Abstract
Activated carbon (AC) was produced from brewer’s yeast with K2CO3 activation. The effects of K2CO3/yeast ratio and activation temperature on the yield and adsorption properties of the AC were investigated. The results indicate that the optimum conditions were as follows: ratio of K2CO3/yeast=2 and activation temperature 800 ℃. The AC produced under the optimum conditions has BET surface area of 1,603 m2/g, pore volume of 1.43 cm2/g and average pore diameter of 3.5 nm. Adsorption of phenol onto the AC was determined by batch test at solution pH of 7. The effects of contact time and initial phenol concentration were investigated. The adsorption process was found to follow pseudosecond-order kinetics. The rate of phenol adsorption onto the AC produced was rapid with the adsorption equilibrium reached within 5 min. The experimental data fitted well with the Langmuir isotherm model. The maximum phenol uptake by the AC was estimated to be 513.5 mg/g.
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References
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Adinata D, Daud WMAW, Aroua MK, Bioresour. Technol., 98(1), 145 (2007)
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Yang XY, Al-Duri B, J. Colloid Interface Sci., 287(1), 25 (2005)
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Jia Q, Lua AC, J. Anal. Appl. Pyrolysis., 83(2), 175 (2008)
