Hierarchical Porous MOF Iodine Adsorbent

2.24 g/g uptake in 10 h

Mesoporous/macroporous structure tuned via mixed ligands enables iodine uptake surpassing most adsorbents.

Li, Peng · Mingze, Ni · Jinpen, Zhang · Xuquan, Liu · Liu, Sibin · Yang, Pengfei · Duan, Chongxiong · 77982460 · Guirong, Shi · Qi, Kezhen

Separation and Purification Technology 2026

Specifications

Iodine uptake

{'zh': '2.24', 'en': '2.24'} g/g

Adsorption-desorption cycles

{'zh': '3', 'en': '3'}

Advantages

High capacity

Achieves an iodine adsorption capacity of 2.24 g/g within 10 h, surpassing most other adsorbents.

Reusable

Maintains high efficiency after three adsorption-desorption cycles, making it suitable for multiple uses.

Tunable porosity

The porosity and morphology of NH2-MIL-101(Fe)_An can be readily tuned by controlling the mixed-ligand (benzoic acid) content.

Applications

• Radioactive Iodine Capture：Efficiently capture radioactive iodine from off-gas or liquid waste, reducing environmental release.
• MOF Adsorbents：Provides a high-capacity, recyclable MOF adsorbent to replace conventional low-efficiency materials.
• Nuclear Waste Treatment：Used for iodine separation and immobilization in nuclear waste treatment, reducing long-term storage risks.