Constructing covalent organic frameworks with dense thiophene S sites for effective iodine capture.

ABSTRACT: Developing versatile sorption materials for radionuclides (e.g. iodine) capture has been a critical goal in nuclear energy and environmental science. At the same time, covalent organic frameworks (COFs), on account of their high porosity and functional scaffolds, have opened up a new way to develop adsorbents in recent years. Herein, two kinds of COF materials containing thiophene (TAPT-COF and TAB-COF), as iodine sorbents, are designed and synthesized by Schiff base reaction. Among them, TAB-COF has a higher surface area (TAPT-COF: 1141 m² g^-1, TAB-COF: 1378 m² g^-1), which is helpful for the physical iodine adsorption. More importantly, the COF backbone is rich in both N and S sites, which is advantageous to the chemical adsorption of iod

SUBMITTER: Ran Y 

PROVIDER: S-EPMC11477706 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature