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Journal of Radioanalytical and Nuclear Chemistry

, Volume 318, Issue 3, pp 2117–2127 | Cite as

Poly (β-cyclodextrin)/bentonite composite: synthesis mechanism and adsorption property for cesium in water

  • Hongjuan Liu
  • Shuibo Xie
  • Xichen Zhang
  • Yingjiu Liu
  • Taotao Zeng
Article
  • 13 Downloads

Abstract

A poly(β-Cyclodextrin)/bentonite composite (β-CD/BNC) were characterized by N2–BET measurement, scanning electron microscopy, energy dispersive spectrometer, fourier transform infrared spectroscopy, thermogravimetric analysis and X-ray photoelectron spectroscopy. Its synthesis mechanism of graft polymerisation was expounded. The maximum sorption capacities of Cs+ onto β-CD/BNC in absence and presence of Cl and CO32− were 48.83 mg g−1, 48.90 mg g−1, and 46.19 mg g−1, respectively. The effect of Cl and CO32− on Cs+ adsorption was not obvious. β-CD/BNC displayed good stability and reusability. The main adsorption mechanism of cesium by β-CD/BNC was ion exchange, and the surface coordination was subordinated mechanism.

Keywords

Bentonite β-CD/BNC Cesium Characterization Adsorption 

Notes

Acknowledgements

This work was financially supported by the Hunan Natural Science Foundation (2018JJ3420), the National Natural Science Foundation of China (11475080), the Graduate Student Research Innovation Project of Hunan Province (CX2016B427).

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2018

Authors and Affiliations

  1. 1.Institute of Nuclear Science and Technology, University of South ChinaHengyangPeople’s Republic of China
  2. 2.Key Discipline Laboratory for National Defence for Biotechnology in Uranium Mining and HydrometallurgyUniversity of South ChinaHengyangPeople’s Republic of China
  3. 3.Hunan Province Key Laboratory of Pollution Control and Resources Reuse TechnologyUniversity of South ChinaHengyangPeople’s Republic of China

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