Adsorption of Ce(III) by Magnetic Chitosan/yeast Composites from Aqueous Solution: Kinetic and Equilibrium Studies

被引：4
作者：
Ou, HongXiang [1 ]
Bian, WeiBai [1 ]
Weng, XiangMei [1 ]
Huang, WeiHong [1 ]
Zhang, YunLei [1 ]
机构：
[1] Jiangsu Univ, Sch Environm, Zhenjiang 212013, Peoples R China
来源：
ENERGY ENGINEERING AND ENVIRONMENTAL ENGINEERING, PTS 1AND 2 | 2013年 / 316-317卷
关键词：
Ce(III); Magnetic Chitosan/Yeast Composites; Adsorption; Kinetic models; Isotherm; REMOVAL; PB(II);
D O I：
10.4028/www.scientific.net/AMM.316-317.391
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Magnetic chitosan/yeast(MCY) composites were prepared and applied to adsorb Ce(III) ions from aqueous solutions. The effects of pH, contact time and initial concentration were examined, and the hematite leakage was also studied. The optimum pH was 5.5. MCY composites had magnetic stability (especially over pH range of 4.5 similar to 7.0). The kinetic data were investigated by pseudo-first-order and pseudo-second-order models. The kinetic data were better fitted to the pseudo-second-order model. Experimental data were fitted with the Langmuir and Freundlich models to analyze the equilibrium isotherms. The Freundlich model was better to describe the experimental data. The maximum adsorption capacity calculated by Langmuir isotherm was 73.53 mg/g.
引用
收藏
页码：391 / 394
页数：4
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