Ahmad Zaini, Muhammad Abbas and Ting, Chiew Ngiik and Kamaruddin, Mohd. Johari and Mohd. Setapar, Siti Hamidah and Che Yunus, Mohd. Azizi (2014) Zinc chloride-activated waste carbon powder for decolourization of methylene blue. Jurnal Teknologi (Sciences and Engineering), 67 (2). pp. 37-44. ISSN 0127-9696
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Official URL: http://dx.doi.org/10.11113/jt.v67.2731
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.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | irradiated water activation, waste carbon powder |
| Subjects: | T Technology > TP Chemical technology |
| Divisions: | Chemical Engineering |
| ID Code: | 63253 |
| Deposited By: | Siti Nor Hashidah Zakaria |
| Deposited On: | 19 Jun 2017 04:00 |
| Last Modified: | 19 Jun 2017 04:00 |
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