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Journal of Radioanalytical and Nuclear Chemistry

, Volume 314, Issue 2, pp 1083–1093 | Cite as

Efficient sorption of Th(IV) from aqueous solutions onto magnetic chitosan nano-particles functionalized with alanine and valine

Article

Abstract

The magnetic chitosan nano-particles functionalized with alanine (or valine) were prepared for enhancing Th(IV) sorption. The uptake kinetics followed the pseudo-second-order model whilst the sorption isotherms fitted to the Langmuir model. The maximum Th(IV) sorption capacities are 128.7 and 154.0 mg/g for MCN-Val and MCN-Ala sorbents, respectively. MCN-Ala has higher Th(IV) sorption capacity since it contains more sorption sites (amino and carboxylic groups) and has less steric hindrance. The values of thermodynamic parameters indicate that Th(IV) sorption is endothermic and spontaneous. The fast kinetics and magnetic properties of the nano-sorbents allow their efficient Th(IV) sorption and magnetic separation from the solution.

Keywords

Chitosan nano-particles Magnetic adsorption Th(IV) Alanine Valine 

Notes

Acknowledgements

The authors acknowledge the financial support from the National Natural Science Foundation (21366001; 21667001), the International Scientific and Technological Cooperation Projects (2015DFR61020), the Key Research and Development Program and the Natural Science Fund Program of Jiangxi Province (20161BBF60059; S2017ZRMSB0473).

Supplementary material

10967_2017_5478_MOESM1_ESM.doc (49 kb)
Supplementary material 1 (DOC 49 kb)

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2017

Authors and Affiliations

  • Tianqi Li
    • 1
  • Quanshui Chen
    • 1
  • Limin Zhou
    • 1
    • 3
  • Zhangao Le
    • 1
    • 2
  • Yun Wang
    • 1
  • Zhirong Liu
    • 1
    • 2
  • Adesoji A. Adesina
    • 3
  1. 1.State Key Laboratory for Nuclear Resources and EnvironmentEast China University of TechnologyNanchangPeople’s Republic of China
  2. 2.Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and DevicesEast China University of TechnologyNanchangPeople’s Republic of China
  3. 3.School of Chemical Sciences and EngineeringUniversity of New South WalesSydneyAustralia

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