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Effects of γ irradiation on bis(2-ethylhexyl)phosphoric acid supported by macroporous silica-based polymeric resins

  • Qiding Shu , Afshin Khayambashi , Xinpeng Wang , Xiaolong Wang , Lei Feng and Yuezhou Wei EMAIL logo
Published/Copyright: October 9, 2017
Radiochimica Acta
From the journal Radiochimica Acta Volume 106 Issue 3

Abstract

Bis(2-ethylhexyl)phosphoric acid (HDEHP) is one of the most intensively used extractants in solvent extraction, and its particular interest lies in the its application in nuclear fuel cycle as an extractant supported by macroporous silica-based polymeric resins in solid phase extraction technique. In this study, HDEHP/SiO2-P was synthesized by impregnation and immobilization, and we mainly focused on its radiation-resistant properties against γ-rays. It was found that HDEHP/SiO2-P still had good adsorption and separation properties after γ-irradiation by batch experiment. The uptake capacity of Gd(III) towards HDEHP/SiO2-P decreased slightly after irradiation. HDEHP/SiO2-P did not show any changes in the characterization of infrared spectroscopy and thermogravimetric analysis before and after irradiation. UPLC-Q-TOF-MS was employed to investigate the reaction mechanism in radiolysis of HDEHP in irradiated filter liquor. HDEHP/SiO2-P had a satisfactory radiation-resistance and chemical stability, even though it was exposed to the high absorbed dose of 500 kGy by γ-rays.

Keywords: γ-Irradiation; HDEHP/SiO2-P; adsorption and separation; mechanism of radiolysis; radiation-resistance

Acknowledgements

This work was supported by the National Natural Science Foundation of China (Grant Nos. 91126006 and 11305102) and Major Science and Technology Program for Water Pollution Control and Treatment (Grant No. 2015ZX07406006-06).

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Supplemental Material:

The online version of this article offers supplementary material (https://doi.org/10.1515/ract-2017-2758).

Received: 2017-1-8
Accepted: 2017-8-21
Published Online: 2017-10-9
Published in Print: 2018-3-28

©2018 Walter de Gruyter GmbH, Berlin/Boston

Articles in the same Issue

  1. Frontmatter
  2. Studies on the uptake of Am(III) and Eu(III) on ionic liquid modified polystyrene-divinyl benzene
  3. Performance evaluation of hollow fiber renewal liquid membrane for extraction of uranium(VI) from acidic sulfate solution
  4. Effect of carbonate on U(VI) sorption by nano-crystalline α-MnO2
  5. Comparison of some organic and inorganic ion exchangers concerning the sorption of Ce(III), Te(IV), Zr(IV), Hf(IV) and Nb(V)
  6. Evaluation of Mn bioaccumulation and biosorption by bacteria isolated from spent nuclear fuel pools using 54Mn as a radioindicator
  7. Preparation and biological evaluation of 99mTc N-histamine as a model for brain imaging: in silico study and preclinical evaluation
  8. Radiolysis products and degradation mechanism studies on tri-isoamyl phosphate (TiAP)
  9. Effects of γ irradiation on bis(2-ethylhexyl)phosphoric acid supported by macroporous silica-based polymeric resins
https://doi.org/10.1515/ract-2017-2758
Keywords for this article
γ-Irradiation; HDEHP/SiO2-P; adsorption and separation; mechanism of radiolysis; radiation-resistance

Articles in the same Issue

  1. Frontmatter
  2. Studies on the uptake of Am(III) and Eu(III) on ionic liquid modified polystyrene-divinyl benzene
  3. Performance evaluation of hollow fiber renewal liquid membrane for extraction of uranium(VI) from acidic sulfate solution
  4. Effect of carbonate on U(VI) sorption by nano-crystalline α-MnO2
  5. Comparison of some organic and inorganic ion exchangers concerning the sorption of Ce(III), Te(IV), Zr(IV), Hf(IV) and Nb(V)
  6. Evaluation of Mn bioaccumulation and biosorption by bacteria isolated from spent nuclear fuel pools using 54Mn as a radioindicator
  7. Preparation and biological evaluation of 99mTc N-histamine as a model for brain imaging: in silico study and preclinical evaluation
  8. Radiolysis products and degradation mechanism studies on tri-isoamyl phosphate (TiAP)
  9. Effects of γ irradiation on bis(2-ethylhexyl)phosphoric acid supported by macroporous silica-based polymeric resins
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