Journal
ACS APPLIED POLYMER MATERIALS
Volume 2, Issue 11, Pages 5121-5128Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsapm.0c00907
Keywords
porous organic polymer; iodine; adsorption; charge transfer complex; solvent encapsulation
Funding
- Special Fund for Graduate Innovation in Jiangxi Province [YC2019-S333]
- National Natural Science Foundation of China [51663018]
- Science and Technology Department of Jiangxi Province [20192BBEL50025]
- Nanchang Hangkong University [EA201902288]
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The adsorption of iodine by porous organic polymers is an active research topic. Here, we synthesized three porous organic polymers, TTDP-1, TTDP-2, and TTDP-3, to study the adsorption of iodine. A suitable configuration for iodine adsorption was identified by flexibly adjusting the stacking degree of aldehyde monomers to change the porosity of the porous organic polymer. The adsorption power of TTDP-1, TTDP-2, and TTDP-3 to iodine can reach 536, 470, and 425 wt %, respectively. All exhibit good adsorption capacity. By studying the thermogravimetric and infrared spectra of the TTDP-X material before and after iodine adsorption, we proved that iodine can form a charge transfer complex between the aromatic skeleton connected by the imine bond. This combination can increase iodine adsorption.
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