Removal and Recovery of Mo(IV) from Aqueous Solutions by D201 Resin: Adsorption and Column Studies

被引：5

作者：

Zheng, Zhanwang ^{[1
]}

Jia, Qian ^{[1
]}

Xie, Xuri ^{[1
]}

Zheng, Xuming ^{[2
]}

Yao, Caiping ^{[1
]}

Xiong, Chunhua ^{[1
]}

Jiang, Jianxiong ^{[3
]}

机构：

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

[2] Zhejiang Sci Tech Univ, Dept Appl Chem, Hangzhou 310018, Peoples R China

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

来源：

ASIAN JOURNAL OF CHEMISTRY | 2014年 / 26卷 / 02期

基金：

中国国家自然科学基金;

关键词：

D201; resin; Mo(IV); Adsorption; Kinetics; Langmuir model; CHELATING RESIN; MOLYBDATE; HG(II);

D O I：

10.14233/ajchem.2014.15409

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The adsorption and desorption properties of D201 resin for Mo(IV) have been investigated in CH3COOH-CH3COOAc medium. A series of experiments were-conducted in a batch system to assess the effect of the system variables, i.e., initial pH, contact time and temperature. The optimal pH for the adsorption was 5.5 and the maximum adsorption capacity Was 501.4 mg/g at 298 K. The apparent adsorption rate constant were k(288-K) = 2.69 x 10(-5) S-1; k(308 K) = 4.37 x 10(-5) s(-1); k(313 K) = 4.61 x 10(-5) S-1, respectively. The adsorption isotherms data fitted well to Langmuir Model. Finally, Mo(IV) could be eluted by using 1.25 mol/LNaOH solution and the resin can be regenerated and reused without apparent decrease of adsorption capacity.

引用

页码：393 / 395

页数：3

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