Adsorption Characteristics of Activated Carbon Derived from Scrap Tires for Malachite Green：Influence of Small Organics

The influence of small organics on the adsorption characteristics of activated carbon produced from industrial pyrolytic tire char（APTC）for malachite green（MG） was investigated by a batch method. Phenol was chosen as the representative of small organics. The effects of phenol on adsorption equilibri...

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Bibliographic Details
Published in:Transactions of Tianjin University 2013-12, Vol.19 (6), p.425-429
Main Author: 李丽 刘玉静 王佳平 刘双喜 朱坦
Format: Article
Language:English
Subjects:
Engineering
Humanities and Social Sciences
Langmuir
Mechanical Engineering
multidisciplinary
Science
动力学模型
吸附特性
孔雀石绿
废旧轮胎
有机物
活性炭
衍生
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Summary:The influence of small organics on the adsorption characteristics of activated carbon produced from industrial pyrolytic tire char（APTC）for malachite green（MG） was investigated by a batch method. Phenol was chosen as the representative of small organics. The effects of phenol on adsorption equilibrium, kinetics and thermodynamics were studied systematically. The results indicate that APTC is a potential adsorbent for MG. The presence of phenol decreases the adsorption capacity of APTC for MG, but improves the rate of adsorption, while the adsorption characteristics, such as equilibrium, kinetics and thermodynamics are not affected by phenol. The adsorption equilibrium data follow Langmuir isotherm and the kinetic data are well described by the pseudo-second-order kinetic model. The adsorption process follows intra-particle diffusion model and the adsorption rate is determined by more than one process. Thermodynamic study shows that the adsorption is an endothermic and spontaneous physisorption process.
ISSN:1006-4982
1995-8196
DOI:10.1007/s12209-013-2090-9