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Journal of Radioanalytical and Nuclear Chemistry

, Volume 321, Issue 3, pp 1005–1017 | Cite as

Polyaniline/oxidation etching graphitic carbon nitride composites for U(VI) removal from aqueous solutions

  • Jinxiang Liu
  • Zigeng Chen
  • Kun Yu
  • Yingjiu Liu
  • Yujie Ge
  • Shuibo XieEmail author
Article
  • 38 Downloads

Abstract

Polyaniline/oxidation etching g-C3N4 composites (PANI/OCN) were synthesized through an oxidative polymerization method and applied to remove U(VI)from aqueous solution as an adsorbent. The PANI/OCN showed high maximum adsorption capacity (qm = 312.5 mg g−1, T = 293 K, pH = 5), which was higher than OCN and many other adsorbents,and extremely fast adsorption rate (in 10 min). The adsorption process was fitted well to the pseudo-second-order kinetic equation and Langmuir model. Adsorption–desorption experiment revealed the good reusability of PANI/OCN. This study provides a potential composite with excellent performance for U(VI) removal.

Keywords

Polyaniline Graphitic carbon nitride U(VI) Adsorption 

Notes

Acknowledgements

The authors are grateful for the financial support of the National Natural Science Foundation of China (11475080) and Ph.D. Research Startup Fund Project of University of South China (2016XQD06).

Compliance with ethical standards

Conflict of interests

The authors declare no competing financial interests.

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2019

Authors and Affiliations

  • Jinxiang Liu
    • 1
  • Zigeng Chen
    • 1
  • Kun Yu
    • 1
  • Yingjiu Liu
    • 1
  • Yujie Ge
    • 1
  • Shuibo Xie
    • 1
    • 2
    Email author
  1. 1.Hunan Provincial Key Laboratory of Pollution Control and Resources TechnologyUniversity 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

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