Colyliform Crystalline 2D Covalent Organic Frameworks (COFs) with Quasi‐3D Topologies for Rapid I<sub>2</sub> Adsorption

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  • Xinghua Guo
    College of Chemistry Sichuan University Key Laboratory of Radiation Physics & Technology Ministry of Education No. 29 Wangjiang Road Chengdu 610064 P. R. China
  • Yang Li
    Hefei National Laboratory for Physical Sciences at the Microscale University of Science and Technology of China Hefei Anhui 230026 P. R. China
  • Meicheng Zhang
    College of Chemistry Sichuan University Key Laboratory of Radiation Physics & Technology Ministry of Education No. 29 Wangjiang Road Chengdu 610064 P. R. China
  • Kecheng Cao
    Electron Microscopy of Materials Science, Central Facility for Electron Microscopy Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
  • Yin Tian
    School of Pharmacy Chengdu University of Traditional Chinese Medicine Chengdu 611137 P. R. China
  • Yue Qi
    College of Chemistry Sichuan University Key Laboratory of Radiation Physics & Technology Ministry of Education No. 29 Wangjiang Road Chengdu 610064 P. R. China
  • Shoujian Li
    College of Chemistry Sichuan University Key Laboratory of Radiation Physics & Technology Ministry of Education No. 29 Wangjiang Road Chengdu 610064 P. R. China
  • Kun Li
    College of Chemistry Sichuan University Key Laboratory of Radiation Physics & Technology Ministry of Education No. 29 Wangjiang Road Chengdu 610064 P. R. China
  • Xiaoqi Yu
    College of Chemistry Sichuan University Key Laboratory of Radiation Physics & Technology Ministry of Education No. 29 Wangjiang Road Chengdu 610064 P. R. China
  • Lijian Ma
    College of Chemistry Sichuan University Key Laboratory of Radiation Physics & Technology Ministry of Education No. 29 Wangjiang Road Chengdu 610064 P. R. China

抄録

<jats:title>Abstract</jats:title><jats:p>Constructing three‐dimensional (3D) structural characteristics on two‐dimensional (2D) covalent organic frameworks (COFs) is a good approach to effectively improve the permeability and mass transfer rate of the materials and realize the rapid adsorption for guest molecules, while avoiding the high cost and monomer scarcity in preparing 3D COFs. Herein, we report for the first time a series of colyliform crystalline 2D COFs with quasi‐three‐dimensional (Q‐3D) topologies, consisting of unique “stereoscopic” triangular pores, large interlayer spacings and flexible constitutional units which makes the pores elastic and self‐adaptable for the guest transmission. The as‐prepared QTD‐COFs have a faster adsorption rate (2.51 g h<jats:sup>−1</jats:sup>) for iodine than traditional 2D COFs, with an unprecedented maximum adsorption capacity of 6.29 g g<jats:sup>−1</jats:sup>. The excellent adsorption performance, as well as the prominent irradiation stability allow the QTD‐COFs to be applied for the rapid removal of radioactive iodine.</jats:p>

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