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Wang J, Wu T, Wang X, Chen J, Fan M, Shi Z, Liu J, Xu L, Zang Y. Construction of hydroxyl-functionalized hyper-crosslinked networks from polyimide for highly efficient iodine adsorption. iScience 2024; 27:108993. [PMID: 38327786 PMCID: PMC10847683 DOI: 10.1016/j.isci.2024.108993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 11/16/2023] [Accepted: 01/18/2024] [Indexed: 02/09/2024] Open
Abstract
The rapid development of nuclear energy posed a great threat to the environment and human health. Herein, two hydroxyl-functionalized hyper-crosslinked polymers (PIHCP-1 and PIHCP-2) containing different electron active sites have been synthesized via Friedel-Crafts alkylation reaction of the polyimides. The resulting polymers showed a micro/mesoporous morphology and good thermal and chemical stability. Rely on the high porosity and multi-active sites, the PIHCPs show an ultrahigh iodine uptake capacity reached 6.73 g g-1 and the iodine removal efficiency from aqueous solution also reaches 99.7%. Kinetic analysis demonstrates that the iodine adsorption on PIHCPs was happened on the heterogeneous surfaces in the form of multilayer chemisorption. Electrostatic potential (ESP) calculation proves the great contribution of hydroxyl groups on the iodine capture performance. In addition, the iodine capture efficiency of both adsorbents can be maintained over 91% after four cyclic experiments which ensures their good recyclability for further practical applications.
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Affiliation(s)
- Jianjun Wang
- College of Materials Science and Engineering, Qiqihar University, Wenhua Street 42, Qiqihar, Heilongjiang 161006, China
- College of Chemistry and Chemical Engineering, Technology Innovation Center of Industrial Hemp for State Market Regulation, Qiqihar University, Wenhua Street 42, Qiqihar, Heilongjiang 161006, China
| | - Tingting Wu
- College of Materials Science and Engineering, Qiqihar University, Wenhua Street 42, Qiqihar, Heilongjiang 161006, China
| | - Xianlong Wang
- College of Materials Science and Engineering, Qiqihar University, Wenhua Street 42, Qiqihar, Heilongjiang 161006, China
| | - Jiaqi Chen
- College of Chemistry and Chemical Engineering, Technology Innovation Center of Industrial Hemp for State Market Regulation, Qiqihar University, Wenhua Street 42, Qiqihar, Heilongjiang 161006, China
| | - Minyi Fan
- College of Chemistry and Chemical Engineering, Technology Innovation Center of Industrial Hemp for State Market Regulation, Qiqihar University, Wenhua Street 42, Qiqihar, Heilongjiang 161006, China
| | - Zhichun Shi
- College of Chemistry and Chemical Engineering, Technology Innovation Center of Industrial Hemp for State Market Regulation, Qiqihar University, Wenhua Street 42, Qiqihar, Heilongjiang 161006, China
| | - Jiao Liu
- College of Materials Science and Engineering, Qiqihar University, Wenhua Street 42, Qiqihar, Heilongjiang 161006, China
| | - Liang Xu
- Analysis and Testing Center, Qiqihar University, Wenhua Street 42, Qiqihar, Heilongjiang 161006, China
| | - Yu Zang
- College of Materials Science and Engineering, Qiqihar University, Wenhua Street 42, Qiqihar, Heilongjiang 161006, China
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Hypercrosslinked phenylalaninol for efficient uranium adsorption from water. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Preparation of an electron-rich polyimide-based hypercrosslinked polymer for high-efficiency and reversible iodine capture. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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