Title of article :
Zinc Chloride-activated Waste Carbon Powder for Decolourization of Methylene Blue
Author/Authors :
Zaini, Muhammad Abbas Ahmad Universiti Teknologi Malaysia - Centre of Lipids Engineering Applied Research, Malaysia , Ngiik, Ting Chiew Universiti Teknologi Malaysia - Centre of Lipids Engineering and Applied Research (CLEAR), Malaysia , Kamaruddin, Mohd. Johari Universiti Teknologi Malaysia - Centre of Lipids Engineering and Applied Research (CLEAR), Malaysia , Setapar, Siti Hamidah Mohd. Universiti Teknologi Malaysia - Faculty of Chemical Engineeringand Natural Resources Engineering - Advanced Materials and Process Engineering Research Group, Malaysia , Yunus, Mohd. Azizi Che Universiti Teknologi Malaysia - Centre of Lipid Engineering Applied Research (CLEAR), Malaysia
Abstract :
Waste carbon powder from pyrolysis of discarded tyre was converted into activated carbon for decolourization of metylene blue (MB). The precursor was activated using ZnCl2 (ZC), recycled ZnCl2 solution from the earlier activation (RC), and irradiated water (MC). Activated carbons were characterized according to surface area and morphology. The values of surface area were recorded as 288, 104 and 113 m2/g for ZC, RC and MC, respectively. The decolourization of MB was observed to have the following order: ZC MC RC. The maximum adsorption capacity of MB by ZC was found to be 154 mg/g. Adsorption data for all activated carbons studied obeyed Redlich-Peterson isotherm for which the process could be described as mixed features of Langmuir and Freundlich models. The kinetics data were wellfitted to pseudo-second-order model, suggesting the chemisorption process.
Keywords :
Activated carbon , irradiated water activation , methylene blue , waste carbon powder , zinc chloride activation
Journal title :
Jurnal Teknologi :F
Journal title :
Jurnal Teknologi :F
