Mercury(II) removal from aqueous solutions by adsorption on multi-walled carbon nanotubes

被引：0
|
作者：
Mehdi Jamshidi Shadbad
Ali Mohebbi
Ataallah Soltani
机构：
[1] Shahid Bahonar University of Kerman,Department of Chemical Engineering, College of Engineering
来源：
Korean Journal of Chemical Engineering | 2011年 / 28卷
关键词：
Adsorption; Kinetic; Mercury; Multi-walled Carbon Nanotubes; Equilibrium Isotherms;
D O I：
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中图分类号：
学科分类号：
摘要：
Our aim was to test how MWCNTs can be used as a new adsorbent for mercury(II). Multi-walled carbon nanotubes (MWCNTs) have been used for removal of mercury from aqueous solutions. Mercury removal from aqueous solutions by batch adsorption was investigated. Equilibrium isotherms, such as Freundlich, Langmuir, Temkin, Harkins-Jura, were tested. Kinetic studies based on Lagergren first-order, pseudo-second-order and Elovich rate expressions were done. The batch experiments were conducted at three different temperatures (17, 27 and 37 °C) and different pHs of the initial solution. Error function analysis shows that mercury(II) removal obeys pseudo-second order kinetics and Freundlich isotherm equation. Finally, the effects of solution pH and temperature on the adsorption were studied.
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页码：1029 / 1034
页数：5
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