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Amino functionalization of porous aromatic frameworks for efficient and stable iodine adsorption.
- Source :
-
Inorganic Chemistry Communications . Jun2024, Vol. 164, pN.PAG-N.PAG. 1p. - Publication Year :
- 2024
-
Abstract
- [Display omitted] • N-containing porous aromatic frameworks with superior stability. • High iodine adsorption capability through chemical adsorption. • Uniform distribution of nitrogen within the framework. In view of the excellent stability, ultra-high specific surface area, and structural versatility, porous aromatic frameworks (PAFs) have shown promising potential in gaseous iodine adsorption. Herein, PAF-1 and PAF-5 were synthesized with high specific surface areas. Amino groups as effective binding sites were introduced to these frameworks through post-modification, which facilitated a shift from simple physical adsorption of iodine vapor to a more robust chemical adsorption process. Meanwhile, PAF-6 was synthesized from nitrogen-rich monomers to demonstrate the role of N-binding site in iodine adsorption. PAF-6 exhibited the highest iodine adsorption capacity, verifying the critical role of N-adsorption active sites. The in situ synthesis of nitrogen-rich porous material show advantages over post-modification in creating effective iodine adsorbents. This work highlights the potential of PAFs as a promising material for the adsorption and fixation of radioactive iodine. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 13877003
- Volume :
- 164
- Database :
- Academic Search Index
- Journal :
- Inorganic Chemistry Communications
- Publication Type :
- Academic Journal
- Accession number :
- 177086681
- Full Text :
- https://doi.org/10.1016/j.inoche.2024.112388