期刊
SAINS MALAYSIANA
卷 47, 期 3, 页码 603-610出版社
UNIV KEBANGSAAN MALAYSIA
DOI: 10.17576/jsm-2018-4703-22
关键词
Activated carbon; adsorption; coconut leaves; ferric chloride; methylene blue; thermal activation
资金
- Ministry of Education, Malaysia
- Research Management Institute (RMI)
- Universiti Teknologi MARA under the Research Acculturation Grant Scheme [600-RMI/RAGS 5/3(18/2014]
In this study, coconut leaves were used as a starting material for the production of activated carbon by thermal carbonization using FeCl3-activation method. The characterization of coconut leaves-FeCl3 activated carbon (FAC) were evaluated by bulk density, ash content, moisture content, point-of-zero charge (pH(pzc)) analysis, iodine test, scanning electron microscopy (SEM), Fourier transform infrared (FTIR) and elemental (CHNS-O) analysis. The effect of the adsorbent dosage (0.02-0.25 g), initial pH (3-11), initial dye concentrations (30-350 mg/L) and contact time (1-180 min) on the adsorption of the methylene blue (MB) at 303 K was performed via batch experiments. The Pseudo-Second Order (PSO) describes the kinetic model well whereas the Langmuir isotherm proved that adsorption behavior at equilibrium with maximum adsorption capacity (q(max)) of 66.00 mg/g.
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