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A Novel Preparation and Vapour Phase Modification of 2D-open Channel Bio-adsorbent for Uranium Separation
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  • Mudasir Ahmad,
  • Jianquan Ren,
  • Tao Xiu,
  • Mehraj-ud-din Naik,
  • Qiuyu Zhang,
  • Baoliang Zhang
Mudasir Ahmad
Northwestern Polytechnical University

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Jianquan Ren
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Mehraj-ud-din Naik
Jazan University
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Qiuyu Zhang
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Baoliang Zhang
Northwestern Polytechnical University
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An economical and highly uranium extraction from seawater remains a crucial task for energy sources and environmental safety. Aiming for improving the mass transfer rate of uranium from seawater, a new synthetic strategy was adopted to synthesize 2D-open channel microporous bio-adsorbent for uranium extraction from seawater. Herein, a vapor phase modification approach was adopted to graft divinylbenzene(DVB), and polyacrylonitrile(AN) onto the surfaces of microporous frameworks via a free radical polymerization method. The post-synthetic functionalization was carried out by hydrothermal process, where amidoxime groups are structure-directing agents to trap uranium. Further, amidoxime groups not only enhanced hydrophilicity but also adjusts adsorbents pKa. AO-Fc faces minimum interference of competing ions and achieves a high uranium adsorption capacity of 8.57±0.02 and 409±1 mg/g in seawater and simulated solution. Despite its stable structure, AO-Fc exhibits a long life span and negligible weight loss revealed AO-Fc could be applied as a potential adsorbent for radionuclides
25 May 2022Submitted to AIChE Journal
25 May 2022Submission Checks Completed
25 May 2022Assigned to Editor
29 May 2022Reviewer(s) Assigned
18 Jun 2022Editorial Decision: Revise Minor
17 Jul 20221st Revision Received
20 Jul 2022Submission Checks Completed
20 Jul 2022Assigned to Editor
14 Aug 2022Editorial Decision: Accept
23 Aug 2022Published in AIChE Journal. 10.1002/aic.17884