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Preparation and Properties of Activated Carbon from Palm Shell by Potassium Hydroxide Impregnation: Effects of Processing Parameters
Paper Type  |
Contributed Paper |
Title |
Preparation and Properties of Activated Carbon from Palm Shell by Potassium Hydroxide Impregnation: Effects of Processing Parameters |
Author |
Sathaporn Bhungthong, Darunee Aussawasathien, Kittipong Hrimchum and Sa-Nguansak Sriphalang |
Email |
daruneea@mtec.or.th |
|
Abstract: The preparation and characterization of activated carbons (ACs) produced from palm shells, a carbonaceous agricultural solid waste, via potassium hydroxide (KOH) impregnation were studied. The effects of processing parameters: activation temperature (500-1000°C), KOH/char ratio (1:1-3:1) and activation duration (1-3 h) on the properties of the prepared ACs were investigated. These properties included yield, pore development, Brunauer-Emmett-Teller (BET) surface area (SBET), iodine number, methylene blue (MB) adsorption, composition, and surface chemistry and morphology. The optimum conditions for activation were KOH/char ratio of 2:1 at a temperature of 900°C for duration of 1 h. Under these conditions, ACs with maximum SBET, micropore volume (Vm ) and total pore volume (VT) of 1643 m2 g-1, 0.899 cm3 g-1 and 0.978 cm3 g-1, respectively were obtained, with iodine number and MB adsorption of 871 and 54% respectively. Experimental results showed that it was feasible to produce ACs with a high surface area and high adsorption capability from palm shells. |
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Start & End Page |
462 - 473 |
Received Date |
2015-07-03 |
Revised Date |
|
Accepted Date |
2016-09-14 |
Full Text |
Download |
Keyword |
activated carbon, palm shell, chemical activation, pore development |
Volume |
Vol.45 No.1 (January 2018) |
DOI |
|
Citation |
Bhungthong S., Aussawasathien D., Hrimchum K. and Sriphalang S., Preparation and Properties of Activated Carbon from Palm Shell by Potassium Hydroxide Impregnation: Effects of Processing Parameters, Chiang Mai Journal of Science, 2018; 45(1): 462-473. |
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