Preparation of oil palm (Elaeis) empty fruit bunch activated carbon by microwave-assisted KOH activation for the adsorption of methylene blue

被引:100
作者
Foo, K. Y. [1 ]
Hameed, B. H. [1 ]
机构
[1] Univ Sains Malaysia, Sch Chem Engn, Nibong Tebal 14300, Penang, Malaysia
关键词
Activated carbon; Adsorption; Methylene blue; Microwave; Oil palm empty fruit bunch; REMOVAL; CHARS;
D O I
10.1016/j.desal.2011.03.024
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
In this study, oil palm empty fruit bunch (EFB), an industrial waste abundantly available in Malaysia, was utilized as a feedstock for preparation of activated carbon (EFBAC) via KOH chemical activation using a microwave device operating at 2.45 GHz. The activation process was performed at an input power of 360 W and an irradiation time of 15 min. EFBAC was characterized by means of low temperature nitrogen adsorption, scanning electron microscope, Fourier transform infrared spectroscopy and elemental analysis. It was found that the BET surface area, total pore volume and average pore size were 807.54 m(2)/g, 0.45 cm(3)/g, and 21.93 angstrom respectively. The adsorption behavior was well described by the Langmuir isotherm model, showing a monolayer adsorption capacity for methylene blue of 344.83 mg/g. The results revealed the potential to prepare activated carbon from oil palm empty fruit bunch by microwave irradiation. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:302 / 305
页数:4
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