Adsorption of a cationic dye from aqueous solution using Turkish lignite: Kinetic, isotherm, thermodynamic studies and neural network modeling

被引：38
|
作者：
Hassani, A. [1 ]
Vafaei, F. [2 ]
Karaca, S. [1 ]
Khataee, A. R. [2 ]
机构：
[1] Ataturk Univ, Dept Chem, Fac Sci, TR-25240 Erzurum, Turkey
[2] Univ Tabriz, Dept Appl Chem, Res Lab Adv Water & Wastewater Treatment Proc, Fac Chem, Tabriz, Iran
来源：
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2014年 / 20卷 / 04期
关键词：
Lignite; Methylene blue; Artificial neural network; Kinetics; Isotherms; METHYLENE-BLUE; WASTE-WATER; FLY-ASH; REMOVAL; SORPTION; MECHANISM; EQUILIBRIUM; DEGRADATION; POLLUTANTS; SAWDUST;
D O I：
10.1016/j.jiec.2013.10.049
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The adsorption ability of Turkish lignite as a cheap and abundant material for removal of methylene blue was investigated. The depending of adsorption capacity on contact time, initial dye concentration, amount of adsorbent, mixing rate, pH and temperature was studied. An artificial neural network was used to model the adsorption process. BET, SEM and FT-IR analysis before and after adsorption were performed. The adsorption kinetic, thermodynamic and isotherm were also investigated. The rate of adsorption was shown the best fit with the pseudo-second order model. The values of thermodynamic parameters indicated that the dye adsorption on the lignite was endothermic. (C) 2013 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：2615 / 2624
页数：10
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