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Updated: Aug 15, 2025
07:28
An Efficient Method for Selective Desalination of Radioactive Iodine Anions by Using Gold Nanoparticles-Embedded Membrane Filter
Published on: July 13, 2018
7.5K
Two Facile Aniline-Based Hypercrosslinked Polymer Adsorbents for Highly Efficient Iodine Capture and Removal
Biying Liu1,2, Chaochao Mao3, Zian Zhou1,2
1School of Environmental and Chemical Engineering, Foshan University, Foshan 528000, China.
International Journal of Molecular Sciences
|January 8, 2023
Summary
New polymers efficiently capture radioactive iodine from nuclear waste. These aniline-based hypercrosslinked polymers (AHCPs) offer a low-cost solution for environmental protection in the nuclear industry.
Area of Science:
- Materials Science
- Environmental Chemistry
- Nuclear Engineering
Background:
- Radioactive iodine isotopes (129I, 131I) pose environmental risks from nuclear power.
- Efficient and affordable materials for iodine capture are critical.
Purpose of the Study:
- To synthesize and evaluate aniline-based hypercrosslinked polymers (AHCPs) for radioactive iodine capture.
- To assess their performance in both aqueous and gaseous phases.
Main Methods:
- Synthesis of AHCP-1 via Friedel-Crafts alkylation and AHCP-2 via Scholl coupling.
- Evaluation of iodine adsorption in aqueous solutions and iodine vapor.
- Characterization of polymer stability and iodine capture mechanisms.
Main Results:
- AHCP-1 achieved a record static iodine adsorption of 250 wt% in aqueous solution.
- AHCP-2 demonstrated excellent total iodine capture of 596 wt% in vapor phase.
- Both polymers showed high chemical and thermal stability, attributed to primary amine groups.
Conclusions:
- AHCPs offer a low-cost, recyclable, and high-performance solution for radioactive iodine removal.
- These materials show significant potential for treating radioactive wastewater and gas mixtures.
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