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Updated: Jul 16, 2026
07:28
An Efficient Method for Selective Desalination of Radioactive Iodine Anions by Using Gold Nanoparticles-Embedded Membrane Filter
Published on: July 13, 2018
Topology-tunable high-stability cerium-based hydroxamate MOFs for efficient radioactive iodine capture
Jiashan Jiang1, Chao Huang1, Dongmei Chen1
1Guizhou Key Laboratory of Macrocyclic and Supramolecular Chemistry, Guizhou University, Guiyang 550025, China. zhangsl@gzu.edu.cn.
Chemical Communications (Cambridge, England)
|July 15, 2026
Summary
We developed stable cerium-based metal-organic frameworks (MOFs) for high-temperature iodine capture. One MOF demonstrated a significant iodine adsorption surge, enabling efficient nuclear iodine removal.
Area of Science:
- Materials Science
- Inorganic Chemistry
- Nuclear Chemistry
Background:
- Metal-organic frameworks (MOFs) offer tunable properties for gas adsorption.
- Cerium-based MOFs are explored for various applications, including adsorption.
- High-temperature iodine capture is crucial for nuclear safety and waste management.
Purpose of the Study:
- To synthesize and characterize novel cerium-based hydroxamate MOFs.
- To investigate the topology-tunable properties of these MOFs.
- To evaluate their performance for high-temperature iodine adsorption, particularly for nuclear applications.
Main Methods:
- Synthesis of cerium-based hydroxamate MOFs.
- Characterization using techniques like X-ray diffraction and gas adsorption analysis.
- High-temperature iodine adsorption experiments at 110 °C.
Main Results:
- Two highly stable, topology-tunable cerium-based hydroxamate MOFs were successfully synthesized.
- Ce-PDHA exhibited a rare high-temperature iodine adsorption surge, reaching 2191.6 mg g-1 at 110 °C.
- Adsorption mechanism involves pyrazine nitrogen charge transfer, indicating efficient nuclear iodine capture.
Conclusions:
- The developed cerium-based MOFs are stable and exhibit tunable structures.
- Ce-PDHA shows exceptional high-temperature iodine adsorption capacity, suitable for nuclear applications.
- The findings highlight the potential of MOFs in addressing critical challenges in nuclear waste management.
