Journal
SCIENTIFIC REPORTS
Volume 12, Issue 1, Pages -Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41598-022-06671-0
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- American University of Sharjah [EFRG18-GER-CAS-67]
- American University of Sharjah
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This study reports the preparation and characterization of two triazine-based, nitrogen-rich, porous organic polymers, NRPOP-1 and NRPOP-2, which have high adsorption capacity for iodine vapor and exhibit good antibacterial activity. These polymers show promise for environmental and public health applications.
The capture and safe storage of radioactive iodine (I-129 or I-131) are of a compelling significance in the generation of nuclear energy and waste storage. Because of their physiochemical properties, Porous Organic Polymers (POPs) are considered to be one of the most sought classes of materials for iodine capture and storage. Herein, we report on the preparation and characterization of two triazine-based, nitrogen-rich, porous organic polymers, NRPOP-1 (SA(BET) = 519 m(2) g(-1)) and NRPOP-2 (SA(BET) = 456 m(2) g(-1)), by reacting 1,3,5-triazine-2,4,6-triamine or 1,4-bis-(2,4-diamino-1,3,5-triazine)-benzene with thieno[2,3-b]thiophene-2,5-dicarboxaldehyde, respectively, and their use in the capture of volatile iodine. NRPOP-1 and NRPOP-2 showed a high adsorption capacity of iodine vapor with an uptake of up to 317 wt % at 80 degrees C and 1 bar and adequate recyclability. The NRPOPs were also capable of removing up to 87% of iodine from 300 mg L-1 iodine-cyclohexane solution. Furthermore, the iodine-loaded polymers, I-2@NRPOP-1 and I-2@NRPOP-2, displayed good antibacterial activity against Micrococcus luteus (ML), Escherichia coli (EC), and Pseudomonas aeruginosa (PSA). The synergic functionality of these novel polymers makes them promising materials to the environment and public health.
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