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Niu CP, Zhang CR, Liu X, Liang RP, Qiu JD. Synthesis of propenone-linked covalent organic frameworks via Claisen-Schmidt reaction for photocatalytic removal of uranium. Nat Commun 2023; 14:4420. [PMID: 37479725 PMCID: PMC10361971 DOI: 10.1038/s41467-023-40169-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 07/17/2023] [Indexed: 07/23/2023] Open
Abstract
The type of reactions and the availability of monomers for the synthesis of sp2-c linked covalent organic frameworks (COFs) are considerably limited by the irreversibility of the C=C bond. Herein, inspired by the Claisen-Schmidt condensation reaction, two propenone-linked (C=C-C=O) COFs (named Py-DAB and PyN-DAB) are developed based on the base-catalyzed nucleophilic addition reaction of ketone-activated α-H with aromatic aldehydes. The introduction of propenone structure endows COFs with high crystallinity, excellent physicochemical stability, and intriguing optoelectronic properties. Benefitting from the rational design on the COFs skeleton, Py-DAB and PyN-DAB are applied to the extraction of radionuclide uranium. In particular, PyN-DAB shows excellent removal rates (>98%) in four uranium mine wastewater samples. We highlight that such a general strategy can provide a valuable avenue toward various functional porous crystalline materials.
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Affiliation(s)
- Cheng-Peng Niu
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, 330031, China
| | - Cheng-Rong Zhang
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, 330031, China
| | - Xin Liu
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, 330031, China
| | - Ru-Ping Liang
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, 330031, China.
| | - Jian-Ding Qiu
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, 330031, China.
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, 330013, China.
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Chen XJ, Zhang CR, Liu X, Qi JX, Jiang W, Yi SM, Niu CP, Cai YJ, Liang RP, Qiu JD. Flexible three-dimensional covalent organic frameworks for ultra-fast and selective extraction of uranium via hydrophilic engineering. J Hazard Mater 2023; 445:130442. [PMID: 36436454 DOI: 10.1016/j.jhazmat.2022.130442] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 11/09/2022] [Accepted: 11/18/2022] [Indexed: 06/16/2023]
Abstract
It has been considered challenging to develop ideal adsorbents for efficient and lower adsorption time uranium extraction, especially 3D covalent organic frameworks with interpenetrating topologies and tunable porous structures. Here, a "soft" three-dimensional (3D) covalent organic framework (TAM-DHBD) with a fivefold interpenetrating structure is prepared as a novel porous platform for the efficient extraction of radioactive uranium. The resultant TAM-DHBD appears exceptional crystallinity, prominent porosity and excellent chemical stability. Based on the strong mutual coordination between phenolic-hydroxyl/imine-N on the main chain and uranium, TAM-DHBD can effectively avert the competition of other ions, showing high selectivity for uranium extraction. Impressively, the 3D ultra-hydrophilic transport channels and multi-directional uniform pore structure of TAM-DHBD lay the foundation for the ultra-high-speed diffusion of uranium (the adsorption equilibrium can be reached within 60 min under a high-concentration environment). Furthermore, the utilization of lightweight structure not only increases the adsorption site density, but renders the adsorption process flexible, achieving a breakthrough adsorption capacity of 1263.8 mg g-1. This work not only highlights new opportunities for designing microporous 3D COFs, but paves the way for the practical application of 3D COFs for uranium adsorption.
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Affiliation(s)
- Xiao-Juan Chen
- College of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Cheng-Rong Zhang
- College of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Xin Liu
- College of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Jia-Xin Qi
- College of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Wei Jiang
- College of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Shun-Mo Yi
- College of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Cheng-Peng Niu
- College of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Yuan-Jun Cai
- College of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Ru-Ping Liang
- College of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China.
| | - Jian-Ding Qiu
- College of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China; State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang 330013, China.
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Zhang CR, Qi JX, Cui WR, Chen XJ, Liu X, Yi SM, Niu CP, Liang RP, Qiu JD. A novel 3D sp2 carbon-linked covalent organic framework as a platform for efficient electro-extraction of uranium. Sci China Chem 2022. [DOI: 10.1007/s11426-022-1466-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Zhang CR, Cui WR, Yi SM, Niu CP, Liang RP, Qi JX, Chen XJ, Jiang W, Liu X, Luo QX, Qiu JD. An ionic vinylene-linked three-dimensional covalent organic framework for selective and efficient trapping of ReO 4- or 99TcO 4. Nat Commun 2022; 13:7621. [PMID: 36494388 PMCID: PMC9734744 DOI: 10.1038/s41467-022-35435-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 12/02/2022] [Indexed: 12/13/2022] Open
Abstract
The synthesis of ionic olefin linked three-dimensional covalent organic frameworks (3D COFs) is greatly challenging given the hardness of the formation of stable carbon-carbon double bonds (-C = C-). Herein, we report a general strategy for designing porous positively charged sp2 carbon-linked 3D COFs through the Aldol condensation promoted by quaternization. The obtained 3D COFs, namely TFPM-PZI and TAPM-PZI, showed impressive chemical stability. Furthermore, the positively charged frameworks with regular porosity endow 3D ionic COFs with selective capture radioactive ReO4-/TcO4- and great removal efficiency in simulated Hanford waste. This research not only broadens the category of 3D COFs but also promotes the application of COFs as efficient functional materials.
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Affiliation(s)
- Cheng-Rong Zhang
- grid.260463.50000 0001 2182 8825College of Chemistry and Chemical Engineering, Nanchang University, 330031 Nanchang, China
| | - Wei-Rong Cui
- grid.260463.50000 0001 2182 8825College of Chemistry and Chemical Engineering, Nanchang University, 330031 Nanchang, China
| | - Shun-Mo Yi
- grid.260463.50000 0001 2182 8825College of Chemistry and Chemical Engineering, Nanchang University, 330031 Nanchang, China
| | - Cheng-Peng Niu
- grid.260463.50000 0001 2182 8825College of Chemistry and Chemical Engineering, Nanchang University, 330031 Nanchang, China
| | - Ru-Ping Liang
- grid.260463.50000 0001 2182 8825College of Chemistry and Chemical Engineering, Nanchang University, 330031 Nanchang, China
| | - Jia-Xin Qi
- grid.260463.50000 0001 2182 8825College of Chemistry and Chemical Engineering, Nanchang University, 330031 Nanchang, China
| | - Xiao-Juan Chen
- grid.260463.50000 0001 2182 8825College of Chemistry and Chemical Engineering, Nanchang University, 330031 Nanchang, China
| | - Wei Jiang
- grid.260463.50000 0001 2182 8825College of Chemistry and Chemical Engineering, Nanchang University, 330031 Nanchang, China
| | - Xin Liu
- grid.260463.50000 0001 2182 8825College of Chemistry and Chemical Engineering, Nanchang University, 330031 Nanchang, China
| | - Qiu-Xia Luo
- grid.260463.50000 0001 2182 8825College of Chemistry and Chemical Engineering, Nanchang University, 330031 Nanchang, China
| | - Jian-Ding Qiu
- grid.260463.50000 0001 2182 8825College of Chemistry and Chemical Engineering, Nanchang University, 330031 Nanchang, China ,grid.418639.10000 0004 5930 7541State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, 330013 Nanchang, China
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Qi JX, Zhang CR, Chen XJ, Yi SM, Niu CP, Liu JL, Zhang L, Liang RP, Qiu JD. 3D Ionic Olefin-Linked Conjugated Microporous Polymers for Selective Detection and Removal of TcO 4-/ReO 4- from Wastewater. Anal Chem 2022; 94:10850-10856. [PMID: 35857436 DOI: 10.1021/acs.analchem.2c01932] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Technetium (99Tc) is a highly toxic radioactive nuclear wastewater contaminant. Real-time detection of 99Tc is very difficult due to its difficult-to-complex nature. Herein, a novel three-dimensional ionic olefin-linked conjugated microporous polymer (TFPM-EP-Br) is constructed using tetrakis(4-aldehyde phenyl)methane (TFPM) as the central monomer. The unique cationic cavity and highly hydrophobic framework enable TFPM-EP-Br to act as a fluorescent sensor for TcO4-. The fluorophores of TFPM-EP-Br can be quenched due to electron transfer from TFPM-EP-Br to TcO4- and the formation of strongly nonfluorescent complexes. Meanwhile, the regular pore channels are beneficial for the fast mass transfer of TcO4-, resulting in an ultrafast response time (less than 2 s) with an ultralow detection limit (33.3 nM). In addition, the ultrahigh specific surface area enables TFPM-EP-Br to combine the ability to synergistically detect and remove radioactive 99Tc. From this perspective, the novel conjugated microporous polymer has made a breakthrough in the detection and extraction of radioactive contaminants.
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Affiliation(s)
- Jia-Xin Qi
- College of Chemistry, Nanchang University, Nanchang 330031, China
| | - Cheng-Rong Zhang
- College of Chemistry, Nanchang University, Nanchang 330031, China
| | - Xiao-Juan Chen
- College of Chemistry, Nanchang University, Nanchang 330031, China
| | - Shun-Mo Yi
- College of Chemistry, Nanchang University, Nanchang 330031, China
| | - Cheng-Peng Niu
- College of Chemistry, Nanchang University, Nanchang 330031, China
| | - Jin-Lan Liu
- College of Chemistry, Nanchang University, Nanchang 330031, China
| | - Li Zhang
- College of Chemistry, Nanchang University, Nanchang 330031, China
| | - Ru-Ping Liang
- College of Chemistry, Nanchang University, Nanchang 330031, China
| | - Jian-Ding Qiu
- College of Chemistry, Nanchang University, Nanchang 330031, China.,State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang 330013, China
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Niu CP, Zhang CR, Cui WR, Yi SM, Liang RP, Qiu JD. A conveniently synthesized redox-active fluorescent covalent organic framework for selective detection and adsorption of uranium. J Hazard Mater 2022; 425:127951. [PMID: 34894515 DOI: 10.1016/j.jhazmat.2021.127951] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 11/19/2021] [Accepted: 11/27/2021] [Indexed: 06/14/2023]
Abstract
Uranium is a key element in the nuclear industry and also a global environmental contaminant with combined highly toxic and radioactive. Currently, the materials based on post-modification of amidoxime have been developed for uranium detection and adsorption. However, the affinity of amidoxime group for vanadium is stronger than that of uranium, which is the main challenge hindering the practical application of amidoxime-based adsorbents. Herein, we synthesized a fluorescent covalent organic framework (TFPPy-BDOH) through integrating biphenyl diamine and pyrene unit into the π-conjugated framework. TFPPy-BDOH has an excellent selectivity to uranium due to the synergistic effect of nitrogen atom in the imine bond and hydroxyl groups in conjugated framework. It can achieve ultra-fast fluorescence response time (2 s) and ultra-low detection limit (8.8 nM), which may be attributed to its intrinsic regular porous channel structures and excellent hydrophilicity. More excitingly, TFPPy-BDOH can chemically reduce soluble U (VI) to insoluble U (IV), and release the binding site to adsorb additional U (VI), achieving high adsorption capacity of 982.6 ± 49.1 mg g-1. Therefore, TFPPy-BDOH can overcome the challenges faced by current amidoxime-based adsorbents, making it as a potential adsorbent in practical applications.
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Affiliation(s)
- Cheng-Peng Niu
- College of Chemistry, Nanchang University, Nanchang 330031, China
| | - Cheng-Rong Zhang
- College of Chemistry, Nanchang University, Nanchang 330031, China
| | - Wei-Rong Cui
- College of Chemistry, Nanchang University, Nanchang 330031, China
| | - Shun-Mo Yi
- College of Chemistry, Nanchang University, Nanchang 330031, China
| | - Ru-Ping Liang
- College of Chemistry, Nanchang University, Nanchang 330031, China.
| | - Jian-Ding Qiu
- College of Chemistry, Nanchang University, Nanchang 330031, China; Engineering Technology Research Center for Environmental Protection Materials and Equipment of Jiangxi Province, Pingxiang University, Pingxiang 337055, China.
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