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Adsorption of Pb(II) Ions from Aqueous Solution Using Activated Carbon Prepared from Areca Catechu Shell: Kinetic, Isotherm and Thermodynamic Studies

대한화학회지 2017년 61권 3호 p.89 ~ 96
 ( Muslim A. ) - Syiah Kuala University Faculty of Engineering Department of Chemical Engineering

 ( Aprilia S. ) - Syiah Kuala University Faculty of Engineering Department of Chemical Engineering
 ( Suha T. A. ) - Syiah Kuala University Faculty of Engineering Department of Chemical Engineering
 ( Fitri Z. ) - Syiah Kuala University Faculty of Engineering Department of Chemical Engineering

Abstract


This study proposed adsorption of Pb(II) ions from aqueous solution using activated carbon prepared from areca catechu shell (ACS AC) using Timphan Method. The effects of independent variables on adsorption kinetic and isotherm have been investigated by conducting experiments in batch mode at neutral pH. The structural characterization of adsorbent was done by FT-IR and SEM analysis. The Pb(II) adsorption was correlated very well with the pseudo second-order kinetic (PSOKM) and Langmuir isotherm models (LIM). Increasing NaOH mass for activation and adsorption temperature increased weakly all the parameters of adsorption kinetic and isotherm. The Pb(II) ions adsorption capacity of the ACS AC at 27 and 45 oC was 50.51 and 55.25 mg/g, respectively. Thermodynamic parameters were determined, and the results confirmed the Pb(II) ions adsorption should be endothermic and spontaneous process, and both physical and chemical adsorption should be taken place.

키워드

Activated carbon; Areca catechu shell; Isotherm; Kinetic; Thermodynamic
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