4.7 Article

Preparation of sulfur-containing conjugated microporous polymer for adsorbing iodine and Fe3+ sensing

Journal

Publisher

ELSEVIER SCI LTD
DOI: 10.1016/j.jece.2021.106399

Keywords

Conjugated microporous polymer; Sulfur units; Iodine adsorption; Fe3+ sensing

Funding

  1. National Natural Science Foundation of China [21975103, 21905108]
  2. Young and Middle-aged Leading Talents and Teams in Scientific and Technological Innovation [20200301039RQ]
  3. Research Program on Science and Technology from the Education Department of Jilin Province [JJKH20200412KJ, JJKH20200414KJ]

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Research on the adsorption of iodine by porous organic polymers has led to the successful preparation of two new thiol-linked conjugated microporous polymers. These polymers exhibit improved capability in capturing iodine by introducing electron-rich groups, and have potential importance in industrial applications for water treatment.
The adsorption of iodine by porous organic polymers is an active research topic. Two new thiol-linked conjugated microporous polymers (SHCMPs) were successfully prepared by thioalkynes click polymerization. Lone pair electrons of heteroatoms can enhance the interaction between adsorbent and adsorbate, the ability of adsorbent to capture iodine can be improved by introducing electron-rich groups such as nitrogen, thiophene, fluorine, etc. The saturated iodine adsorption capacities of SHCMP-1 and SHCMP-2 are 590 and 495 wt.%, respectively. In addition, SHCMP-2 performs well in detecting Fe3+ in aqueous solution, which has potential importance for industrial application of water treatment.

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