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

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 2.45GHz. The activation process was performed at an input p...

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Bibliographic Details
Published in:Desalination 2011-07, Vol.275 (1-3), p.302-305
Main Authors: Foo, K.Y, Hameed, B.H
Format: Article
Language:English
Subjects:
Activated carbon
Activation
Adsorption
Applied sciences
Chemical engineering
desalination
Elaeis
Elaeis guineensis
Exact sciences and technology
feedstocks
Fourier transform infrared spectroscopy
Fruits
industrial wastes
irradiation
Mathematical models
methylene blue
microwave treatment
nitrogen
Other industrial wastes. Sewage sludge
Palm
Pollution
scanning electron microscopes
Scanning electron microscopy
sorption isotherms
surface area
Surface chemistry
temperature
Wastes
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Summary: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 2.45GHz. The activation process was performed at an input power of 360W and an irradiation time of 15min. 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 807.54m²/g, 0.45cm³/g, and 21.93Å respectively. The adsorption behavior was well described by the Langmuir isotherm model, showing a monolayer adsorption capacity for methylene blue of 344.83mg/g. The results revealed the potential to prepare activated carbon from oil palm empty fruit bunch by microwave irradiation.
ISSN:0011-9164
1873-4464
DOI:10.1016/j.desal.2011.03.024