Effects of Processing Parameters on Properties of Activated Carbon from Palm Shell: Sodium Hydroxide Impregnation
Sathaporn Bhungthong [a], Darunee Aussawasathien* [b], Kittipong Hrimchum [b] and Sa-Nguansak Srip* Author for corresponding; e-mail address: daruneea@mtec.or.th
Volume: Vol.44 No.2 (April 2017)
Research Article
DOI:
Received: 11 June 2015, Revised: -, Accepted: 25 August 2015, Published: -
Citation: Bhungthong S., Aussawasathien D., Hrimchum K. and Srip S., Effects of Processing Parameters on Properties of Activated Carbon from Palm Shell: Sodium Hydroxide Impregnation, Chiang Mai Journal of Science, 2017; 44(2): 544-556.
Abstract
The preparation and properties of activated carbons (ACs) produced from palm shells using sodium hydroxide (NaOH) as an activating reagent were studied. The influences of processing parameters: activation temperature (500-1000°C), impregnation ratio (1-3) and activation duration (1-3 h), on the properties of the prepared ACs were investigated. These properties included pore development, Brunauer-Emmett-Teller (BET) surface area, yield, iodine number, methylene blue (MB) adsorption, composition, and surface chemistry and morphology. The optimum conditions for activation were NaOH/char ratio of 2:1 at a temperature of 900°C for duration of 2 h. Under these conditions, ACs with maximum BET surface area of 2363 m2 g-1 was obtained, with iodine number and MB adsorption of 1389 mg g-1 and 55% respectively. Experimental results showed that it was feasible to produce ACs with a high BET surface area and high adsorption capability from palm shells.