4.5 Article

Hyperporous Carbon from Triptycene-Based Hypercrosslinked Polymer for Iodine Capture

Journal

ADVANCED MATERIALS INTERFACES
Volume 6, Issue 9, Pages -

Publisher

WILEY
DOI: 10.1002/admi.201900249

Keywords

gas storage; hypercrosslinked polymer; iodine capture; porous carbon; triptycene

Funding

  1. National Natural Science Foundation of China [21875079, 21672078]

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Considering the nuclear fuel reprocessing conditions at 75 degrees C and the oxidizability of iodine, thermal and chemical stabilities are especially important for porous materials to enrich iodine. However, most organic or metal coordinated porous materials hardly meet this long-term demand. Here, highly porous carbon is prepared from pyrolysis at high temperature using triptycene-based hypercrosslinked polymer as precursor, and possesses high Brunauer-Emmett-Teller (BET) surface area of 3125 m(2) g(-1) and pore volume of 1.60 cm(3) g(-1), and exhibits excellent iodine uptake ability of 340 wt% at 75 degrees C. Moreover, the obtained hyperporous carbon also displays remarkable capture efficiency of iodine from water with the maximum adsorption capacity of 926 mg g(-1). With the characteristics of easy preparation and good chemical and thermal stabilities, the hyperporous carbon may be an ideal adsorbent in iodine capture.

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