Kinetics and equilibrium isotherms on methyl violet adsorption by Arundo donax root activated carbon

被引：0
|
作者：
Zhang, Chenglu [1 ]
Li, Yan [1 ]
Zhang, Jian [1 ]
Li, Cong [1 ]
机构：
[1] Shandong Univ, Sch Environm Sci & Engn, Jinan 250100, Peoples R China
来源：
2009 3RD INTERNATIONAL CONFERENCE ON BIOINFORMATICS AND BIOMEDICAL ENGINEERING, VOLS 1-11 | 2009年
关键词：
activated carbon; Arundo donax root; kinetic model; mechanism; isotherms; methyl violet;
D O I：
暂无
中图分类号：
R318 [生物医学工程];
学科分类号：
0831 ;
摘要：
Arundo donax root was used to prepare activated carbon by H3PO4 activation for the removal of methyl violet (MV). The activated carbon has a micro-mesoporous structure with BET surface area 1392 m(2)/g. Pseudo-second-order model could predict the adsorption kinetics for the entire process. The sorption involved several stages and the actual rate controlling step was film diffusion for the whole process. The equilibrium data were better represented by Freundlich model than Langmuir model. The adsorption of methyl violet onto Arundo donax root activated carbon was spontaneous and endothermic.
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收藏
页码：5361 / +
页数：3
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