Issue 35, 2020, Issue in Progress

Highly efficient, reversible iodine capture and exceptional uptake of amines in viologen-based porous organic polymers

Abstract

A viologen-based porous organic polymer, POP-V-VI, was designed and synthesized by a facile nucleophilic substitution between cyanuric chloride and 1,2-bis(4-pyridinium) ethylene. Together with the reported POP-V-BPY with a similar structure, these viologen-based porous organic polymers bear high charge density, phenyl ring and nitrogenous affinity sites, which endow them with excellent iodine vapor uptake capacity (4860 mg g−1 for POP-V-VI and 4200 mg g−1 for POP-V-BPY) and remarkably high adsorption capacity for pyridine (4470 mg g−1 for POP-V-VI and 8880 mg g−1 for POP-V-BPY) and other aliphatic amines. POP-V-VI and POP-V-BPY could be efficiently recycled and reused three times without significant loss of iodine vapor uptake. All these results demonstrate that POP-V-VI and POP-V-BPY are promising adsorbents for practical applications in portable devices such as gas masks.

Graphical abstract: Highly efficient, reversible iodine capture and exceptional uptake of amines in viologen-based porous organic polymers

Supplementary files

Article information

Article type
Paper
Submitted
10 Apr 2020
Accepted
14 May 2020
First published
28 May 2020
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2020,10, 20460-20466

Highly efficient, reversible iodine capture and exceptional uptake of amines in viologen-based porous organic polymers

M. Li, H. Zhao and Z. Lu, RSC Adv., 2020, 10, 20460 DOI: 10.1039/D0RA03242E

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