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Targeted synthesis of carbon-supported titanate nanofibers as host structure for nuclear waste immobilization

  • Lei Li , Ran Ma , Xuewei Liu , Tao Wen EMAIL logo , Bo Wu , Mingtai Sun , Zheng Jiang , Suhua Wang and Xiangke Wang EMAIL logo
Published/Copyright: April 21, 2022
Radiochimica Acta
From the journal Radiochimica Acta Volume 110 Issue 6-9

Abstract

Inorganic ion-exchange materials show potential application for toxic radioactive ions due to their remarkable high efficiency and selectivity features. Here, two type of carbon-supported titanate (C@TNFs and C@TNFs(H)) nanofibers have been synthesized by a cost-effective in suit growth method. The resulting C@TNFs and C@TNFs(H) microspheres present uniform flower-like morphology and large surface area. The interlayer Na+ in the titanate shell provides docking sites for ion-exchange of radioactive ions (U(VI), Ba(II), and Sr(II)). Interestingly, the exceeding theoretical cation-exchange capacities (CECs) are achieved on C@TNFs for U(VI) ∼4.76 meq g−1 and Ba(II) ∼2.65 meq g−1 and C@TNFs(H) for Ba(II) ∼2.53 meq g−1 and Sr(II) ∼2.24 meq g−1, respectively. The impressive adsorption performance is mainly attributed to the synergistic effects of ion-exchange and surface complexation. More significantly, C@TNFs and C@TNFs(H) maintain high distribution coefficients (K d U) of >104 mL g−1 over a wider pH range (pH = 3.5–9.0) and high adsorption rate with short equilibrium time within 50 min. Competitive ion-exchange investigation shows a selectivity order of U(VI) > Ba(II) > Sr(II) at individual 10 ppm concentration, pH = 6.0 and T = 298 K. The related spectroscopic studies reveal the intercalative mechanism of radionuclides in the deformed titanate structure, as a result of target ions firmly trapped in the interlayer of C@TNFs and C@TNFs(H). These advantageous features allow the C@TNFs and C@TNFs(H) to be promising candidates for the remediation of toxic radioactive ions polluted water.

Keywords: C@TNFs; C@TNFs(H); interaction mechanism; ion-exchange; radioactive ions; spectroscopy
Corresponding authors: Tao Wen and Xiangke Wang, MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, P. R. China, E-mail: (T. Wen), (X. Wang)

Funding source: National Key Research and Development Program of China

Award Identifier / Grant number: 2018YFC1900105

Funding source: Science Challenge Project

Award Identifier / Grant number: TZ2016004

Funding source: Beijing Outstanding Young Scientist Program

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: This work was supported by the National Key Research and Development Program of China (2018YFC1900105), Science Challenge Project (TZ2016004), and Beijing Outstanding Young Scientist Program.

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Supplementary Material

The online version of this article offers supplementary material (https://doi.org/10.1515/ract-2021-1055).

Received: 2021-05-12
Accepted: 2021-07-10
Published Online: 2022-04-21
Published in Print: 2022-06-27

© 2021 Walter de Gruyter GmbH, Berlin/Boston

Articles in the same Issue

  1. Frontmatter
  2. Editorial: Diamond Jubilee Issue
  3. Sixty years of Radiochimica Acta: a brief overview with emphasis on the last 10 years
  4. A. Chemistry of Radioelements
  5. Five decades of GSI superheavy element discoveries and chemical investigation
  6. Chemistry of the elements at the end of the actinide series using their low-energy ion-beams
  7. Sonochemistry of actinides: from ions to nanoparticles and beyond
  8. Theoretical insights into the reduction mechanism of neptunyl nitrate by hydrazine derivatives
  9. The speciation of protactinium since its discovery: a nightmare or a path of resilience
  10. On the volatility of protactinium in chlorinating and brominating gas media
  11. The aqueous chemistry of radium
  12. B. Energy Related Radiochemistry
  13. Selective actinide(III) separation using 2,6-bis[1-(propan-1-ol)-1,2,3-triazol-4-yl]pyridine (PyTri-Diol) in the innovative-SANEX process: laboratory scale counter current centrifugal contactor demonstration
  14. Fate of Neptunium in nuclear fuel cycle streams: state-of-the art on separation strategies
  15. Uranium adsorption – a review of progress from qualitative understanding to advanced model development
  16. Targeted synthesis of carbon-supported titanate nanofibers as host structure for nuclear waste immobilization
  17. Progress of energy-related radiochemistry and radionuclide production in the Republic of Korea
  18. C. Nuclear Data
  19. How accurate are half-life data of long-lived radionuclides?
  20. Status of the decay data for medical radionuclides: existing and potential diagnostic γ emitters, diagnostic β+ emitters and therapeutic radioisotopes
  21. An overview of nuclear data standardisation work for accelerator-based production of medical radionuclides in Pakistan
  22. An overview of activation cross-section measurements of some neutron and charged-particle induced reactions in Bangladesh
  23. Nuclear reaction data for medical and industrial applications: recent contributions by Egyptian cyclotron group
  24. Nuclear data for light charged particle induced production of emerging medical radionuclides
  25. D. Radionuclides and Radiopharmaceuticals
  26. The role of chemistry in accelerator-based production and separation of radionuclides as basis for radiolabelled compounds for medical applications
  27. Production of neutron deficient rare earth radionuclides by heavy ion activation
  28. Evaluation of 186WS2 target material for production of high specific activity 186Re via proton irradiation: separation, radiolabeling and recovery/recycling
  29. Special radionuclide production activities – recent developments at QST and throughout Japan
  30. China’s radiopharmaceuticals on expressway: 2014–2021
  31. E. Environmental Radioactivity
  32. A summary of environmental radioactivity research studies by members of the Japan Society of Nuclear and Radiochemical Sciences
https://doi.org/10.1515/ract-2021-1055
Keywords for this article
C@TNFs; C@TNFs(H); interaction mechanism; ion-exchange; radioactive ions; spectroscopy

Articles in the same Issue

  1. Frontmatter
  2. Editorial: Diamond Jubilee Issue
  3. Sixty years of Radiochimica Acta: a brief overview with emphasis on the last 10 years
  4. A. Chemistry of Radioelements
  5. Five decades of GSI superheavy element discoveries and chemical investigation
  6. Chemistry of the elements at the end of the actinide series using their low-energy ion-beams
  7. Sonochemistry of actinides: from ions to nanoparticles and beyond
  8. Theoretical insights into the reduction mechanism of neptunyl nitrate by hydrazine derivatives
  9. The speciation of protactinium since its discovery: a nightmare or a path of resilience
  10. On the volatility of protactinium in chlorinating and brominating gas media
  11. The aqueous chemistry of radium
  12. B. Energy Related Radiochemistry
  13. Selective actinide(III) separation using 2,6-bis[1-(propan-1-ol)-1,2,3-triazol-4-yl]pyridine (PyTri-Diol) in the innovative-SANEX process: laboratory scale counter current centrifugal contactor demonstration
  14. Fate of Neptunium in nuclear fuel cycle streams: state-of-the art on separation strategies
  15. Uranium adsorption – a review of progress from qualitative understanding to advanced model development
  16. Targeted synthesis of carbon-supported titanate nanofibers as host structure for nuclear waste immobilization
  17. Progress of energy-related radiochemistry and radionuclide production in the Republic of Korea
  18. C. Nuclear Data
  19. How accurate are half-life data of long-lived radionuclides?
  20. Status of the decay data for medical radionuclides: existing and potential diagnostic γ emitters, diagnostic β+ emitters and therapeutic radioisotopes
  21. An overview of nuclear data standardisation work for accelerator-based production of medical radionuclides in Pakistan
  22. An overview of activation cross-section measurements of some neutron and charged-particle induced reactions in Bangladesh
  23. Nuclear reaction data for medical and industrial applications: recent contributions by Egyptian cyclotron group
  24. Nuclear data for light charged particle induced production of emerging medical radionuclides
  25. D. Radionuclides and Radiopharmaceuticals
  26. The role of chemistry in accelerator-based production and separation of radionuclides as basis for radiolabelled compounds for medical applications
  27. Production of neutron deficient rare earth radionuclides by heavy ion activation
  28. Evaluation of 186WS2 target material for production of high specific activity 186Re via proton irradiation: separation, radiolabeling and recovery/recycling
  29. Special radionuclide production activities – recent developments at QST and throughout Japan
  30. China’s radiopharmaceuticals on expressway: 2014–2021
  31. E. Environmental Radioactivity
  32. A summary of environmental radioactivity research studies by members of the Japan Society of Nuclear and Radiochemical Sciences
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