Modeling and thermodynamics of methylene blue and acid blue 80 adsorption onto potato residue based activated carbon

被引：0
|
作者：
Yani Liu
Xinsheng Luo
Zhe Zhang
Pengxin Zhou
Zhiwang Yang
机构：
[1] Gansu Agricultural University,College of Science
[2] Northwest Normal University,Key Laboratory of Eco
来源：
Chemical Research in Chinese Universities | 2015年 / 31卷
关键词：
Adsorption; Activated carbon; Methylene blue; Acid blue 80;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A study was made on the adsorption kinetics and thermodynamics of methylene blue(MB) and acid blue 80(AB80) onto powder of activated carbon(PAC) prepared by chemical method from dry potato residue(DPR). The PAC was characterized by N2 adsorption-desorption isotherms analysis and scanning electron microscopy. The maximum adsorption capacities of PAC for MB and AB80 at 303 K are 532.19 and 156.22 mg/g, respectively. The results indicate that the adsorption kinetics of the selected dyes on PAC is well-described by the pseudo-second order model. And their thermodynamic data were analyzed via the isotherms of Langmuir, Freundlich, Redlich-Peterson, Toth and Sips, and the thermodynamic parameters were calculated. The results show that PAC is a fast and effective adsorbent for removing the cationic dyes from aqueous solutions.
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页码：627 / 632
页数：5
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