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The influence of pH on diffusion of 75Se(IV) in Beishan granite

  • Chunli Wang
  • Xiaoyu Yang
  • Fangxin Wei
  • Jiangang He
  • Liye Qi
  • Chunli LiuEmail author
Article
  • 8 Downloads

Abstract

The through-diffusion method and batch sorption experiments were used to explore the influence of pH on the diffusion behavior of 75Se(IV) in matrix Beishan granite (BsG). In the pH range of 2.0–8.5, the De values of 75Se(IV) in BsG decreased first and then increased with pH increasing, while the changing trend of Kd was nearly opposite. It was speculated that the influence of pH on the diffusion of 75Se(IV) in BsG was due to the joint effects of different species distribution of Se, change in surface charge of BsG and change in ionic strength at various pH values.

Keywords

Diffusion 75Se(IV) Beishan granite(BsG) pH 

Notes

Acknowledgements

We thank the Special Foundation for High-level Radioactive Waste Disposal (2012-851) and the National Natural Science Foundation of China (NSFC, No. 11475008, U1530112, U1730245) for financial support. In addition, we are grateful to the 1W2B beamline at the Beijing Synchrotron Radiation Facility (Beijing, China) for providing beam time and assistance for the XAS measurements. The authors declare that no conflict of interest exists.

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2018

Authors and Affiliations

  • Chunli Wang
    • 1
    • 2
  • Xiaoyu Yang
    • 1
  • Fangxin Wei
    • 2
  • Jiangang He
    • 1
  • Liye Qi
    • 1
  • Chunli Liu
    • 1
    Email author
  1. 1.Beijing National Laboratory for Molecular Sciences, Fundamental Science Laboratory on Radiochemistry and Radiation Chemistry, College of Chemistry and Molecular EngineeringPeking UniversityBeijingChina
  2. 2.Nuclear and Radiation Safety CenterBeijingChina

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