Non‐Interpenetrated 3D Covalent Organic Framework with Dia Topology for Au Ions Capture

Liu, Minghao; Kong, Hui‐Yuan; Bi, Shuai; Ding, Xuesong; Chen, George Zheng; He, Jun; Xu, Qing; Han, Bao‐Hang; Zeng, Gaofeng

Abstract

The 3D covalent organic frameworks (COFs) have attracted considerable attention owing to their unique structural characteristics. However, most of 3D COFs have interpenetration phenomena, which will result in decreased surface area and porosities, and thus limited their applications in molecular/gas capture. Developing 3D COFs with non-fold interpenetration is challenging but significant because of the existence of non-covalent interactions between the adjacent nets. Herein, a new 3D COF (BMTA-TFPM-COF) with dia topology and non-fold interpenetration for Au ion capture is first demonstrated. The constructed COF exhibits a high Brunauer–Emmett–Teller surface area of 1924 m2 g−1, with the pore volume of 1.85 cm3 g−1. The high surface area and abundant cavities as well as the abundant exposed C=N linkages due to the non-interpenetration enable to absorb Au3+ with high capacity (570.18 mg g−1), selectivity (99.5%), and efficiency (68.3% adsorption of maximum capacity in 5 min). This work provides a new strategy to design 3D COFs for ion capture.

Citation

Liu, M., Kong, H., Bi, S., Ding, X., Chen, G. Z., He, J., Xu, Q., Han, B., & Zeng, G. (2023). Non‐Interpenetrated 3D Covalent Organic Framework with Dia Topology for Au Ions Capture. Advanced Functional Materials, 33(33), Article 2302637. https://doi.org/10.1002/adfm.202302637

• Journal Article Type: Article
• Acceptance Date: Apr 3, 2023
• Online Publication Date: Apr 23, 2023
• Publication Date: Aug 15, 2023
• Deposit Date: May 4, 2023
• Publicly Available Date: Apr 24, 2024
• Journal: Advanced Functional Materials
• Print ISSN: 1616-301X
• Electronic ISSN: 1616-3028
• Publisher: Wiley
• Peer Reviewed: Peer Reviewed
• Volume: 33
• Issue: 33
• Article Number: 2302637
• DOI: https://doi.org/10.1002/adfm.202302637
• Keywords: 3D topology; Au ions recovery; covalent organic frameworks; gas sorption
• Public URL: https://nottingham-repository.worktribe.com/output/20282651
• Publisher URL: https://onlinelibrary.wiley.com/doi/10.1002/adfm.202302637