Porous ZIF-8@polyacrylonitrile Composite Beads for Iodine Capture

Overview

Journal RSC Adv

Publisher Royal Society of Chemistry

Specialty Chemistry

Date 2022 Apr 28

PMID 35480247

Authors

Qiang Yu

Xiaohui Jiang

Zhengjun Cheng

Yunwen Liao

Ming Duan

Affiliations

Soon will be listed here.

Abstract

The safe and effective capture and storage of iodine from nuclear waste is of great significance in industry. This article reports the preparation of a series of millimeter-sized ZIF-8@polyacrylonitrile composite beads with high specific surface area and porosity by the phase inversion method for iodine capture. The composite beads showed a higher capture capacity (4150 mg g) under excess iodine vapor. The amount of iodine adsorbed in the organic solution is also as high as 643 mg g, and the adsorption conforms to the Freundlich isotherm and the pseudo-second-order kinetic model. Moreover, composite beads also exhibit higher thermal stability (310 °C). Therefore, ZIF-8@polyacrylonitrile composite beads show great potential as a material for capturing and temporarily storing radioactive iodine.

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