Effect of coexisting cations on the adsorption of cesium onto poly (β-cyclodextrin)/bentonite composite

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成果类型：

期刊论文

作者：

Liu, Hongjuan;Xie, Shuibo*;Wang, Tiancheng;Liu, Yingjiu;Zeng, Taotao

通讯作者：

Xie, Shuibo

作者机构：

[Liu, Hongjuan; Xie, Shuibo] Univ South China, Key Discipline Lab Natl Def Biotechnol Uranium Mi, Hengyang 421001, Peoples R China.

[Wang, Tiancheng; Liu, Hongjuan] Univ South China, Inst Nucl Sci & Technol, Hengyang 421001, Peoples R China.

[Xie, Shuibo; Liu, Yingjiu; Zeng, Taotao] Univ South China, Hunan Prov Key Lab Pollut Control & Resources Reu, Hengyang 421001, Peoples R China.

通讯机构：

[Xie, Shuibo] U

Univ South China, Key Discipline Lab Natl Def Biotechnol Uranium Mi, Hengyang 421001, Peoples R China.

Univ South China, Hunan Prov Key Lab Pollut Control & Resources Reu, Hengyang 421001, Peoples R China.

语种：

英文

关键词：

bentonite;cation;cesium;magnesium;poly(beta cyclodextrin);polymer;sodium;unclassified drug;adsorption;adsorption kinetics;Article;binding affinity;energy dispersive X ray spectroscopy;infrared spectroscopy;pH;polymerization;temperature;thermodynamics;waste water management

期刊：

Journal of Radioanalytical and Nuclear Chemistry

ISSN：

0236-5731

年：

2017

卷：

312

期：

页码：

557-565

DOI：

10.1007/s10967-017-5256-4

基金类别：

This work was supported by the Doctoral Fund of High Education Program (Grant No. 20134324110003), the National Natural Science Foundation of China (Grant No. 11475080), the General Program of the Hunan Provincial Education Department (Grant No. 15C1178), the Graduate Student Research Innovation Project of Hunan Province (CX2016B427).

机构署名：

本校为第一且通讯机构

院系归属：

土木工程学院

核科学技术学院

核资源工程学院

摘要：

A novel poly(β-cyclodextrin)/bentonite composite (β-CD/BNC) was successfully prepared through graft polymerisation by using ammonium persulphate–sodium bisulphate as initiators, and characterized by FT-IR and EDS. The equilibrium data fit Freundlich isotherm satisfactorily. Adsorption kinetic was fitted with pseudo-second-order. The maximum adsorption capacities for Cs+ by β-CD/BNC in absence and presence of Na+ and Mg2+ were 48.83±0.35, 47.30±0.28, and 42.52±0.85mgg−1, respectively. Adsorption of Cs+ was suppressed by presence of Mg2+ ...

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Effect of coexisting cations on the adsorption of cesium onto poly (β-cyclodextrin)/bentonite composite

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