Adsorption of Cu(II) ions onto myristica fragrans shell-based activated carbon: Isotherm, kinetic and thermodynamic studies

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D.S. Syahiddin, A. Muslim

2018 Journal of the Korean Chemical Society Vol. 62 Issue 2 Article Cited by 11 SDG 14SDG 6SDG 12 Quartile

Abstract

This study reported the adsorption of Cu(II) ions onto activated carbon prepared from Myristica Fragrans shell (MFS AC) over independent variables of contact time, activating chemical (NaOH) concentration, initial adsorbate concentration, initial pH of adsorbate solution and adsorption temperature. The MFS AC structure, morphology and total surface area were characterized by FTIR, SEM and BET techniques, respectively. The Cu(II) ions adsorption on the MFS AC (activated using 0.5 M NaOH) fitted best to Freundlich adsorption isotherm (FAI), and the FAI constant obtained was 0.845 L/g at 30 °C and pH 4.5. It followed the pseudo first order of adsorption kinetic (PFOAK) model, and the PFOAK based adsorption capacity was 107.65 mg/g. Thermodynamic study confirmed the Cu(II) ions adsorption should be exothermic and non-spontaneous process, physical adsorption should be taken place. The total surface area and pore volume based on BET analysis was 99.85 m2/g and 0.086 cc/g, respectively. © 2017 Korean Chemical Society. All rights reserved.

Affiliations

Department of Chemical Engineering, Faculty of Engineering, Syiah Kuala University, Banda Aceh, Indonesia

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