Author/Authors :
ZAINI, MUHAMMAD ABBAS AHMAD Universiti Teknologi Malaysia - Centre of Lipid Engineering Applied Research (CLEAR), Faculty of Chemical Engineering, Malaysia , MENG, TAN WEE Universiti Teknologi Malaysia - Centre of Lipid Engineering Applied Research (CLEAR), Faculty of Chemical Engineering, Malaysia , KAMARUDDIN, MOHD. JOHARI Universiti Teknologi Malaysia - Centre of Lipid Engineering Applied Research (CLEAR), Faculty of Chemical Engineering, Malaysia , SETAPAR, SITI HAMIDAH MOHD Universiti Teknologi Malaysia - Centre of Lipid Engineering Applied Research (CLEAR), Faculty of Chemical Engineering, Malaysia , CHE YUNUS, MOHD. AZIZI Universiti Teknologi Malaysia - Centre of Lipid Engineering Applied Research (CLEAR), Faculty of Chemical Engineering, Malaysia
Abstract :
This work is aimed to determine the characteristics of activated carbons derived from palm kernel shell (PKS) by microwave-induced zinc chloride activation for dye removal. Activation was performed in a microwave oven at power intensity of 70% for 10 min. The same procedures were repeated for activation using recycled ZnCl2 solution from the first activation. The activated carbons were characterized according to surface area, morphology, functional groups and batch adsorption. The yield for the first activation was 70.7% with surface area of 858m2/g. It was found that the activated carbon prepared using the recycled ZnCl2 still possesses good surface area for methylene blue removal. The adsorption behaviour of the continuous system was well fitted to and could be satisfactorily described by the Yoon and Nelson model.
Keywords :
Adsorption , methylene blue , microwave heating , palm kernel shell , zinc chloride activation
