Methylene blue adsorption onto granular activated carbon prepared from Harmal seeds residue

被引：20
|
作者：
Tofighy, Maryam Ahmadzadeh [1 ]
Mohammadi, Toraj [2 ]
机构：
[1] Islamic Azad Univ, Shahre Ray Branch, Dept Ind Chem, Tehran, Iran
[2] Islamic Azad Univ, South Tehran Branch, Dept Chem Engn, Tehran, Iran
来源：
DESALINATION AND WATER TREATMENT | 2014年 / 52卷 / 13-15期
关键词：
Adsorption; Activated carbon; Methylene blue; Harmal seeds residue; Isotherm; Kinetic; AQUEOUS-SOLUTION; BASIC DYE; PEGANUM-HARMALA; SEWAGE-SLUDGE; SURFACE-AREA; DATE PITS; REMOVAL; EQUILIBRIUM; ADSORBENTS; NANOTUBES;
D O I：
10.1080/19443994.2013.797130
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
In this research, application of granular activated carbon prepared from Harmal seeds residue as a new adsorbent for methylene blue (MB) removal from aqueous solutions was investigated. Adsorption equilibrium and kinetic data were studied. The results demonstrated that the equilibrium data were well represented by Langmuir isotherm model, with maximum monolayer adsorption capacity of 1111.11mg/g. The dimensionless factor (R-L) revealed the favorable nature of this adsorption system. The kinetic data were found to follow the pseudo-second-order kinetic model. Effect of initial concentration on the adsorption mechanism of MB onto the prepared activated carbon was also investigated.
引用
收藏
页码：2643 / 2653
页数：11
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