Magnetite decorated multi-walled carbon nanotubes for removal of toxic dyes from aqueous solutions

被引：0
|
作者：
Özge Kerkez
Şahika Sena Bayazit
机构：
[1] Beykent University,Chemical Engineering Department, Faculty of Engineering and Architecture
来源：
Journal of Nanoparticle Research | 2014年 / 16卷
关键词：
Magnetic separation; Carbon nanotubes; Dye adsorption; Health and environmental effects; Remediation;
D O I：
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学科分类号：
摘要：
The removal of malachite green (MG) and rhodamine B (RB) from aqueous solutions was studied by batch adsorption technique using Fe3O4/MWCNT. Fe3O4/MWCNT adsorbent was synthesized by co-precipitation method and characterized by XRD, SEM, and TGA. 94 % MG removal and 98 % RB removal were achieved in 80 min using 10 mg adsorbent, at pH 6 and 298 K. The effects of adsorbent amount, pH, initial dye concentration, contact time, and temperature were investigated. Equilibrium data were well fitted by Langmuir adsorption model and pseudo-second-order kinetic model. MG adsorption on Fe3O4/MWCNT is exothermic and RB adsorption is endothermic in nature.
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