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He M, Chen Y, Chen G, Li W, Zhang M, Zhang C, Zhang H, Long X, Tang K, Duan T, Zhu L. Efficient removal of perrhenate/pertechnetate by a pyridinium-based porous polymer. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 357:124442. [PMID: 38944180 DOI: 10.1016/j.envpol.2024.124442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 06/03/2024] [Accepted: 06/24/2024] [Indexed: 07/01/2024]
Abstract
The extraction of 99TcO4- from radioactive effluents is extremely crucial for the purposes of nuclear disposal and environmental remediation. Herein, utilizing a facile and low-cost synthesis method, we report a pyridinium-based cationic polymer network, CPP-Cl, with impressive adsorption performance and ultrafast adsorption kinetics towards ReO4-. The structure featuring highly density of charged pyridinium units was synthesized, making it an effective adsorbent for capturing ReO4-. The material showed fast ReO4- adsorption kinetics reaching adsorption equilibrium within 30 s, an excellent capture capability of 1069.7 mg/g, and exceptional separation efficiency of 94.3% for removing 1000 ppm ReO4-. Furthermore, it possessed excellent reusability in multiple sorption/desorption trials and good uptake capacity within a widely ranging pH values. It is noteworthy that the extraction efficiency of CPP-Cl for ReO4- from simulated nuclear waste can be up to 94.2%. The favorable performance of the material in multiple tests revealed that CPP-Cl has tremendous potential as a high-efficiency sorbent for capturing 99TcO4-/ReO4- in complex nuclear associated environmental systems.
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Affiliation(s)
- Miaomiao He
- National Co-Innovation Center for Nuclear Waste Disposal and Environmental Safety, Southwest University of Science and Technology, Mianyang, 621010, China; State Key Laboratory of Environment-Friendly Energy Materials, School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Yuxuan Chen
- National Co-Innovation Center for Nuclear Waste Disposal and Environmental Safety, Southwest University of Science and Technology, Mianyang, 621010, China; State Key Laboratory of Environment-Friendly Energy Materials, School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Guangyuan Chen
- National Co-Innovation Center for Nuclear Waste Disposal and Environmental Safety, Southwest University of Science and Technology, Mianyang, 621010, China; State Key Laboratory of Environment-Friendly Energy Materials, School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Wenhao Li
- National Co-Innovation Center for Nuclear Waste Disposal and Environmental Safety, Southwest University of Science and Technology, Mianyang, 621010, China; State Key Laboratory of Environment-Friendly Energy Materials, School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Mingxing Zhang
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X) and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, China
| | - Chao Zhang
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan, 232001, China
| | - Hao Zhang
- National Co-Innovation Center for Nuclear Waste Disposal and Environmental Safety, Southwest University of Science and Technology, Mianyang, 621010, China; State Key Laboratory of Environment-Friendly Energy Materials, School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Xingyi Long
- National Co-Innovation Center for Nuclear Waste Disposal and Environmental Safety, Southwest University of Science and Technology, Mianyang, 621010, China; State Key Laboratory of Environment-Friendly Energy Materials, School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Kui Tang
- National Co-Innovation Center for Nuclear Waste Disposal and Environmental Safety, Southwest University of Science and Technology, Mianyang, 621010, China; State Key Laboratory of Environment-Friendly Energy Materials, School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Tao Duan
- National Co-Innovation Center for Nuclear Waste Disposal and Environmental Safety, Southwest University of Science and Technology, Mianyang, 621010, China; State Key Laboratory of Environment-Friendly Energy Materials, School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Lin Zhu
- National Co-Innovation Center for Nuclear Waste Disposal and Environmental Safety, Southwest University of Science and Technology, Mianyang, 621010, China; State Key Laboratory of Environment-Friendly Energy Materials, School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang, 621010, China.
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Tang H, Kang Y, Cao S, Chen Z. Synthesis and performance of guanidinium-based cationic organic polymer for the efficient removal of TcO 4-/ReO 4. JOURNAL OF HAZARDOUS MATERIALS 2024; 466:133602. [PMID: 38286051 DOI: 10.1016/j.jhazmat.2024.133602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 01/02/2024] [Accepted: 01/21/2024] [Indexed: 01/31/2024]
Abstract
Cationic organic polymers have found relatively extensive utility for TcO4-/ReO4- removal, but the harsh preparation conditions constrain their practical application. The bifunctional guanidinium-based cationic organic polymer (GBCOP) was successfully and facilely synthesized in benign conditions within 1 h. Batch experiments showed that GBCOP exhibited rapid removal kinetics (1 min, >98.0%) and a substantial removal capacity of 536.8 mg/g for ReO4-. Even in 1000-fold co-existing NO3- anions, the removal efficiency of GBCOP for ReO4- was 74.0%, indicating its good selectivity. Moreover, GBCOP had high removal efficiencies for ReO4- across a wide pH (3.0-10.0) range and presented remarkable stability under the conditions of strong acid and base. GBCOP could be reused four times while removing 80.8% ReO4- from simulated Hanford wastewater. SEM and XPS results revealed that the mechanism of ReO4- removal involved Cl- ion exchange within the channels of GBCOP. Theoretical calculation results supported that existing the strong electrostatic interaction between guanidinium and ReO4-. This dual-function GBCOP material is cost-effective and holds significant potential for large-scale preparation, making it a promising solution for TcO4- removal from nuclear wastewater.
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Affiliation(s)
- Huiping Tang
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei 230026, China
| | - Yujia Kang
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei 230026, China
| | - Shiquan Cao
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei 230026, China
| | - Zhi Chen
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei 230026, China; State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China.
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Zhu L, Li HR, Liu ZF, Di Z, Xu W, Zhang L, Li CP. Post-Modification of a Robust Covalent Organic Framework for Efficient Sequestration of 99 TcO 4 - /ReO 4. Chemistry 2023; 29:e202302168. [PMID: 37534580 DOI: 10.1002/chem.202302168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 08/01/2023] [Accepted: 08/03/2023] [Indexed: 08/04/2023]
Abstract
Nuclear industry spent fuel reprocessing and some radioactive contamination sites often involve high acidity and salinity environments. Currently developed and reported sorbents in 99 TcO4 - sequestration from the nuclear waste are unstable and show low adsorption efficiency in harsh conditions. To address this issue, we developed a post-synthetic modification strategy by grafting imidazole-based ionic liquids (ILs) onto the backbone of covalent organic framework (COF) via vinyl polymerization. The resultant COF-polyILs sorbent exhibits fast adsorption kinetics (<5 min) and good sorption capacity (388 mg g-1 ) for ReO4 - (a nonradioactive surrogate of 99 TcO4 - ). Outstandingly, COF-polyILs composite shows superior ReO4 - removal even under highly acidic conditions and in the presence of excess competing ions of Hanford low-level radioactive waste stream, benefiting from the stable covalent bonds between the COF and polyILs, mass of imidazole rings, and hydrophobic pores in COF.
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Affiliation(s)
- Lei Zhu
- Department of Molecular Imaging and Nuclear Medicine, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Centre for Cancer, Tianjin's Clinical Research Centre for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300060, China
| | - Hai-Ruo Li
- College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Tianjin Normal University, Tianjin, 300387, China
| | - Zhao-Fei Liu
- College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Tianjin Normal University, Tianjin, 300387, China
| | - Zhengyi Di
- College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Tianjin Normal University, Tianjin, 300387, China
| | - Wengui Xu
- Department of Molecular Imaging and Nuclear Medicine, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Centre for Cancer, Tianjin's Clinical Research Centre for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300060, China
| | - Libo Zhang
- Department of Molecular Imaging and Nuclear Medicine, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Centre for Cancer, Tianjin's Clinical Research Centre for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300060, China
| | - Cheng-Peng Li
- College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Tianjin Normal University, Tianjin, 300387, China
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