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Journal of Chemistry
Volume 2013 (2013), Article ID 654343, 10 pages
http://dx.doi.org/10.1155/2013/654343
Research Article

Optimization of Activated Carbons Prepared by and Steam Activation of Oil Palm Shells

1Physical and Theoretical Chemistry Laboratory, Department of Inorganic Chemistry, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
2Applied Organic Chemistry Laboratory, Department of Chemistry, Faculty of Science Semlalia Marrakech, University Cadi Ayyad, P.O. Box 2390 Marrakech, Morocco

Received 20 June 2012; Revised 22 August 2012; Accepted 27 August 2012

Academic Editor: Saima Q. Memon

Copyright © 2013 Daouda Kouotou et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In this study, activated carbons were prepared from oil palm shells by physicochemical activation. The methodology of experimental design was used to optimize the preparation conditions. The influences of the impregnation ratio (0.6–3.4) and the activation temperature between 601°C and 799°C on the following three responses: activated carbon yield (R/AC-), the iodine adsorption (/AC-), and the methylene blue adsorption (MB/AC-) results were investigated using analysis of variance (ANOVA) to identify the significant parameters. Under the experimental conditions investigated, the activation temperature of 770°C and impregnation ratio of 2/1 leading to the R/AC- of 52.10%, the /AC- of 697.86 mg/g, and the MB/AC- of 346.25 mg/g were found to be optimum conditions for producing activated carbon with well compromise of desirability. The two factors had both synergetic and antagonistic effects on the three responses studied. The micrographs of activated carbons examined with scanning electron microscopy revealed that the activated carbons were found to be mainly microporous and mesoporous.