Preparation and characterization of activated carbon from oil palm shells using ZnClâ‚‚ as dehydrating agent

Chow, Yee Ling (2006) Preparation and characterization of activated carbon from oil palm shells using ZnClâ‚‚ as dehydrating agent. Universiti Malaysia Sabah. (Unpublished)

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Abstract

In this study, activated carbon was prepared from oil palm shell through the preparation process consisted of semi-carbonization followed by zinc chloride impregnation and activation. The semi-carbonization and activation temperature ranged from 400'C to 600'C. The activated carbons were characterized by its percentage of yield, moisture content, ash content, pH value, porosity, adsorption of methylene blue and organic functional group. Moisture content increased as ZnCh concentration and activation temperature increased. However, ash content increased as ZnCh concentration increased, but activation temperature decreased. It was found that AC 4 which was prepared at the semi-carbonization 400'C in Ih followed by impregnated with 5M ZnCh and activation temperature 400·C in 45 minute was the best activated carbon among the entire sample because of its highly methylene blue sorption ability. It was found that acid treatment had little effect on adsorption capacity. The analysis of Langmuir adsorption isotherms obtained proved that the adsorption involved a single layer adsorption at the acidic solution. The methylene blue adsorption on all carbons follows a pseudo-second order kinetics.

Item Type: Academic Exercise
Uncontrolled Keywords: Activated carbon from oil palm shells, Oil palm shell, Zinc chloride impregnation, Carbon
Subjects: ?? TP200-248 ??
Depositing User: Unnamed user with email storage.bpmlib@ums.edu.my
Date Deposited: 02 Jan 2013 03:27
Last Modified: 13 Oct 2017 06:10
URI: http://eprints.ums.edu.my/id/eprint/5553

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