Adsorption Behaviour of Co(II) from Aqueous Solutions onto D113-III Resin

被引：1

作者：

Jiang, Xinlong ^{[1
]}

Yang, Liqun ^{[2
]}

Yang, Qing ^{[3
]}

Xiong, Chunhua ^{[2
]}

Jiang, Jianxiong ^{[4
]}

Jia, Qian ^{[2
]}

Chen, Qing ^{[2
]}

机构：

[1] Zhejiang Shuren Univ, Coll Biol & Environm Engn, Hangzhou 310015, Zhejiang, Peoples R China

[2] Zhejiang Gongshang Univ, Dept Appl Chem, Hangzhou 310012, Zhejiang, Peoples R China

[3] Univ Minnesota, Dept Chem Engn, Duluth, MN 55812 USA

[4] Hangzhou Normal Univ, Key Lab Organosilicon Chem & Mat Technol, Minist Educ, Hangzhou 310036, Zhejiang, Peoples R China

来源：

ASIAN JOURNAL OF CHEMISTRY | 2014年 / 26卷 / 07期

基金：

中国国家自然科学基金;

关键词：

D113-III resin; Co(II); Adsorption; Thermodynamics; Adsorption isotherm; ATOMIC-ABSORPTION-SPECTROMETRY; SILICA-GEL; COBALT; COPPER(II); LEAD(II); RECOVERY; 8-HYDROXYQUINOLINE; PRECONCENTRATION; CADMIUM(II); SEPARATION;

D O I：

10.14233/ajchem.2014.15627

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this study, the adsorption and desorption properties of Co(II) on D113:III resin have been studied. The different variables: affecting the adsorption capacity Such as pH of the solution; temperature and contact-time have been investigated, which indicate that D113-III resit could adsorb Co(l) effectively from aqueous solution. The results show that the optimal adsorption condition of D113-III resin for CO(II) is achieved at pH = 6.5. The maximum saturated adsorption Capacity of CO(II) is 192.1 mg.g(-1) D113-III resin rat 298 K. The thermodynamic parameters such as Delta G degrees which were all negative and Delta H degrees Which was positive, indicated that the adsorption of Co(II) ion onto D113-III resin was spontaneous and endothermic, respectively. Positive Delta S degrees value of Co(II) adsorption process indicates an irregular increase of the randomness at the D113-III resin-solution interface during adsorption. Adsorption isotherms correlated well with the Langmuir model. Experimental data were also evaluated to find out kinetic characteristics Of the adsorption process. Desorption: studies revealed that Co(II) ion could be eluted effectively by using the 0.25-1.0 mol L-1 HCl solution. Thomas Model was applied to experimental data to predict the breakthrough curves and to determine the characteristics parameters of the column Useful for process design.

引用

页码：2022 / 2026

页数：5

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