Interaction of Eu(III) on magnetic biochar investigated by batch, spectroscopic and modeling techniques

  • Yuling Zhu
  • Cong Zheng
  • Siying Wu
  • Yuanzhi Song
  • Baowei Hu
Article
  • 30 Downloads

Abstract

Interaction mechanism of Eu(III) on magnetic biochar(MB) was investigated by batch, XPS, EXAFS and modeling techniques. Maximum Eu(III) adsorption capacity on MB is 105.53 mg/g at pH 3.0, which was demonstrated to various functional groups by XPS analysis. No effect of ionic strength revealed inner-sphere surface complexation. According to EXAFS analysis, inner-sphere surface complexation and surface co-precipitation dominated the Eu(III) adsorption at low and high pH, respectively. Eu(III) adsorption can be simulated by surface complexation modeling. These results indicated that MB can be used a promising candidate for the highly effective adsorbent of radionuclides.

Keywords

Radionuclides Spectroscopic analysis Magnetic biochar Modeling 

Notes

Acknowledgements

Financial support from Natural Science Foundation of China (21577093) and Science and Technology Project of Shaoxing (2014B70041) are acknowledged.

Supplementary material

10967_2018_5839_MOESM1_ESM.docx (67 kb)
Supplementary material 1 (DOCX 66 kb)

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2018

Authors and Affiliations

  • Yuling Zhu
    • 1
  • Cong Zheng
    • 1
  • Siying Wu
    • 1
  • Yuanzhi Song
    • 1
  • Baowei Hu
    • 1
  1. 1.School of Life ScienceShaoxing UniversityShaoxingPeople’s Republic of China

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