Adsorption of Dye from Aqueous Solution by Zn-Al Calcined Layered Double Hydroxide

被引：0
|
作者：
Zhang, Lifang [1 ]
Chen, Yingying [1 ]
机构：
[1] Shenyang Ligong Univ, Sch Environm & Chem Engn, Shenyang 110159, Peoples R China
来源：
APPLICATIONS OF ENGINEERING MATERIALS, PTS 1-4 | 2011年 / 287-290卷
关键词：
Adsorption; Calcined layered double hydroxides; Dye; Isotherm; BASIC DYE; REMOVAL;
D O I：
10.4028/www.scientific.net/AMR.287-290.390
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The adsorption of C. I. Reactive Red 2 from aqueous solution on Zn-Al calcined layered double hydroxide (CLDH) was investigated. Experiments were carried out as a function of Zn-Al molar ratio, contact time, pH, temperature and initial dye concentration. The results showed that Zn-Al calcined layered double hydroxide had higher capacity of removal of the dye. Zn-Al CLDH with Zn-Al molar ratio of 3 and with pH range of 4.0-8.0 was found to be optimal for dye removal. Adsorption capacity of dye decreased with increasing temperature and increased with increasing initial dye concentration. It was found that the adsorption equilibrium data followed the Langmuir adsorption model. The maximum adsorption capacity obtained from the Langmuir equation at temperature of 30 degrees C was 116.28mg/g (R-2=0.9992) for the dye.
引用
收藏
页码：390 / 393
页数：4
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