Kinetics of liquid-phase adsorption of organic dye on activated carbons

被引：4
|
作者：
Romantsova, I. V. [1 ]
Burakov, A. E. [1 ]
Kucherova, A. E. [1 ]
Neskoromnaya, E. A. [1 ]
Babkin, A. V. [1 ]
Tkachev, A. G. [1 ]
机构：
[1] Tambov State Tech Univ, Ul Sovetskaya 106, Tambov 392000, Russia
来源：
PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES | 2016年 / 52卷 / 05期
关键词：
D O I：
10.1134/S2070205116050208
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The kinetic parameters of liquid-phase adsorption of a model organic dye, such as methyl orange, from aqueous solution on carbon sorbents were determined under static conditions. Activated carbon and carbon modified with carbon nanotubes synthesized by chemical vapor deposition on metal oxide catalysts were used as experimental materials. It was found that the presence of carbon nanomaterial in the structure of activated carbon intensifies the sorption process and increases the equilibrium adsorption in 2.1 times. The calculated values of the adsorption rate constants showed a 1.5 times higher rate of the extraction process on modified carbons than on standard materials. In addition, the sorption of organic dye was adequately described by the pseudosecond order model, thus, implying a significant contribution of the chemical interaction between adsorbate and adsorbent to the sorption process.
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页码：782 / 785
页数：4
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