Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
222247 | Journal of Environmental Chemical Engineering | 2013 | 10 Pages |
Abstract
A comparative study on the adsorption capacity of functionalized carbon nanotubes (CNTs) and magnetic biochar for the removal of Zn2+ was investigated. Statistical analysis revealed that the optimum conditions for the highest removal of Zn2+ are at pH 10, dosage 0.09 g, agitation speed and time of 120 rpm and 120 min respectively. The removal efficiency of Zn2+ for an initial concentration of 1.1 mg/L using functionalized CNT was 99% and using magnetic biochar was 75%. The maximum adsorption capacities of 1.05 and 1.18 mg/g for functionalized CNT and magnetic biochar respectively. The adsorption isotherms are well described by both Langmuir and Freundlich models and adsorption kinetic obeyed pseudo-second order.
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Authors
N.M. Mubarak, R.F. Alicia, E.C. Abdullah, J.N. Sahu, A.B. Ayu Haslija, J. Tan,