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La Cognata S, Marie C, Guilbaud P, Poggi A, Amendola V. Molecular Hosts for the Sensing and Separation of 99TcO 4. Chemistry 2024:e202401551. [PMID: 38779975 DOI: 10.1002/chem.202401551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Revised: 05/23/2024] [Accepted: 05/23/2024] [Indexed: 05/25/2024]
Abstract
In recent years, European Union member states have hastened energy policy deliberations to address supply and sustainability concerns, placing a significant emphasis on nuclear energy as a means to achieve decarbonization goals. However, despite its significant role in power generation, nuclear energy faces significant challenges linked to fuel reprocessing and waste disposal, that hinder its broader expansion. In this context, the separation of technetium represents a concerning issue. Indeed, technetium's catalytic activity can impede the extraction of uranium, neptunium, and plutonium, affecting waste reprocessing efficiency. Additionally, the stable form of technetium in aerobic conditions, pertechnetate (TcO4 -), poses risks of groundwater contamination due to its mobility and solubility. Hence, sensing and separation of TcO4 - is imperative for both nuclear fuel processing and minimising radioactive contamination in the environment. However, the binding of TcO4 - and its separation from contaminated solutions present challenges due to the acidic (or basic) waste components and the high ionic strength in real matrices. Supramolecular chemists have addressed these issues by designing receptors inspired by molecular recognition principles. This article explores recent advancements and future directions in TcO4 - sensing and separation (using extraction and sorption) with a focus on molecular hosts. Metal-organic receptors will also be discussed.
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Affiliation(s)
- Sonia La Cognata
- Department of Chemistry, University of Pavia, viale Torquato Taramelli 12, 27100, Pavia, Italy
| | - Cécile Marie
- CEA, DES, ISEC, DMRC, Univ Montpellier, Bagnols-sur-cèze, 30200, France
| | - Philippe Guilbaud
- CEA, DES, ISEC, DMRC, Univ Montpellier, Bagnols-sur-cèze, 30200, France
| | - Antonio Poggi
- Department of Chemistry, University of Pavia, viale Torquato Taramelli 12, 27100, Pavia, Italy
| | - Valeria Amendola
- Department of Chemistry, University of Pavia, viale Torquato Taramelli 12, 27100, Pavia, Italy
- INSTM, Via G. Giusti 9, 50121, Firenze, Italy
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Ehlke B, Conour CS, Vandiver TJ, Lofgren KC, Barnett JL, Reinheimer EW, Wenger JS, Oliver SRJ. Silver 2,4'-Bipyridine Coordination Polymer for the High-Capacity Trapping of Perrhenate, A Pertechnetate Surrogate. Inorg Chem 2024; 63:8674-8684. [PMID: 38691843 DOI: 10.1021/acs.inorgchem.4c00202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
Abstract
Pertechnetate, the most stable form of the radionuclide 99Tc in aerobic aqueous systems, is a hazardous anion present in nuclear waste. Its high mobility in water makes the remediation of the anion challenging. In the past decade, significant effort has been placed into finding materials capable of adsorbing this species. Here, we present the synthesis and high-resolution crystal structure of the coordination polymer [Ag(2,4'-bipyridine)]NO3, which is capable of sequestering perrhenate─a pertechnetate surrogate─through anion exchange to form another new coordination polymer, [Ag(2,4'-bipyridine)]ReO4. Both the beginning and end structures were solved by single-crystal X-ray diffraction and the adsorption reaction was monitored through inductively coupled plasma-optical emission spectroscopy and UV-vis spectroscopy. The exchange reaction follows a pseudo-second-order mechanism and the maximum adsorption capacity is 764 mg ReO4/g [Ag(2,4'-bipyridine)]NO3, one of the highest recorded for a coordination polymer or metal-organic framework. A solvent-mediated recrystallization mechanism was determined by monitoring the ion-exchange reaction by scanning electron microscopy-energy-dispersive spectroscopy and powder X-ray diffraction.
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Affiliation(s)
- Beatriz Ehlke
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, 1156 High Street, Santa Cruz, California 95064, United States
| | - Cambell S Conour
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, 1156 High Street, Santa Cruz, California 95064, United States
| | - Tyler J Vandiver
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, 1156 High Street, Santa Cruz, California 95064, United States
| | - Kevin C Lofgren
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, 1156 High Street, Santa Cruz, California 95064, United States
| | - Jeremy L Barnett
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, 1156 High Street, Santa Cruz, California 95064, United States
| | - Eric W Reinheimer
- Rigaku Americas Corporation, 9009 New Trails Drive, The Woodlands, Texas 77381, United States
| | - John S Wenger
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, 1156 High Street, Santa Cruz, California 95064, United States
| | - Scott R J Oliver
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, 1156 High Street, Santa Cruz, California 95064, United States
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Hu Y, Qin B, Li X, Yang F, Lee CP, Xie M, Xue L. Ultraselective Extraction Reprocessing of 99TcO 4-/ReO 4- with a Promising Carbamic Acid Extractant System. Inorg Chem 2023; 62:1530-1538. [PMID: 36640371 DOI: 10.1021/acs.inorgchem.2c03708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
With the development of nuclear energy, the reprocessing of 99TcO4-/ReO4- has become a very difficult problem due to environmental issues such as high output, long life, and easy leakage. In this study, three extraction systems containing carbamic acid were introduced into the reprocessing of 99TcO4-/ReO4- for the first time. The results involving one of the three results show that N-[N,N-di(2-ethylhexyl) aminocarbonylmethyl] glycine (D2EHAG) has ultrahigh selectivity for removal to 99TcO4-/ReO4-. When the extreme concentration ratio of SO42- and Cl- to ReO4- of D2EHAG is 10,000:1, the distribution coefficient of ReO4- still reaches 12.73 and 2.67, respectively. Additionally, the most hydrophilic NO3-, when the extreme concentration ratio of NO3- and ReO4- is 1000:1, still has a distribution coefficient close to 2.33, which is more than the most reported MOF adsorption materials. Moreover, the reaction kinetics, stripping rate, and reuse rate were studied. After five cycles, the removal rate is still 98.12%, with a decrease of less than 0.7%. The system containing carbamic acid is a potential extraction removal system to remove 99TcO4-/ReO4- from nuclear radioactive wastewater.
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Affiliation(s)
- Yanqin Hu
- Xiamen Institute of Rare Earth Materials, Haixi Institute, Chinese Academy of Sciences, Xiamen361021, China.,School of Nuclear Science and Engineering, East China University of Technology, Nanchang330013, China
| | - Ben Qin
- Xiamen Institute of Rare Earth Materials, Haixi Institute, Chinese Academy of Sciences, Xiamen361021, China
| | - Xiaoyan Li
- School of Nuclear Science and Engineering, East China University of Technology, Nanchang330013, China
| | - Fan Yang
- Xiamen Institute of Rare Earth Materials, Haixi Institute, Chinese Academy of Sciences, Xiamen361021, China.,Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian350108, P. R. China.,Fujian Province Joint Innovation Key Laboratory of Fuel and Materials in Clean Nuclear Energy System, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou350002, China.,Advanced Energy Science and Technology Guangdong Laboratory, Huizhou516003, China.,Sichuan Jcc Rare Earth Metals New Material Co., LTD, Chengdu610213, China
| | - Chuan-Pin Lee
- School of Nuclear Science and Engineering, East China University of Technology, Nanchang330013, China
| | - Meiying Xie
- Xiamen Institute of Rare Earth Materials, Haixi Institute, Chinese Academy of Sciences, Xiamen361021, China.,Fujian Province Joint Innovation Key Laboratory of Fuel and Materials in Clean Nuclear Energy System, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou350002, China
| | - Liyan Xue
- Xiamen Institute of Rare Earth Materials, Haixi Institute, Chinese Academy of Sciences, Xiamen361021, China.,Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian350108, P. R. China
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Qin B, Hu Y, Xie M, Xue L, Liao C, Yang F. Highly Selective Adsorption of 99TcO 4-/ReO 4- by a Novel Polyamide-Functionalized Polyacrylamide Polymer Material. TOXICS 2022; 10:630. [PMID: 36287910 PMCID: PMC9608480 DOI: 10.3390/toxics10100630] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/18/2022] [Accepted: 10/19/2022] [Indexed: 06/16/2023]
Abstract
The treatment of radioactive wastewater is one of the major problems in the current research. With the development of nuclear energy, the efficient removal of 99TcO4- in radioactive wastewater has attracted the attention of countries all over the world. In this study, a novel functional polyamide polymer p-(Amide)-PAM was synthesized by the two-step method. The experimental results show that p-(Amide)-PAM has good adsorptive properties for 99TcO4-/ReO4- and has good selectivity in the nitric acid system. The kinetics of the reaction of p-(Amide)-PAM with 99TcO4-/ReO4- was studied. The results show that p-(Amide)-PAM has a fast adsorption rate for 99TcO4-/ReO4-, the saturated adsorption capacity reaches 346.02 mg/g, and the material has good reusability. This new polyamide-functionalized polyacrylamide polymer material has good application prospects in the removal of 99TcO4- from radioactive wastewater.
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Affiliation(s)
- Ben Qin
- Faculty of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China
- Xiamen Institute of Rare Earth Materials, Haixi Institute, Chinese Academy of Sciences, Xiamen 361021, China
| | - Yanqin Hu
- Xiamen Institute of Rare Earth Materials, Haixi Institute, Chinese Academy of Sciences, Xiamen 361021, China
| | - Meiying Xie
- Xiamen Institute of Rare Earth Materials, Haixi Institute, Chinese Academy of Sciences, Xiamen 361021, China
- Fujian Province Joint Innovation Key Laboratory of Fuel and Materials in Clean Nuclear Energy System, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
| | - Liyan Xue
- Xiamen Institute of Rare Earth Materials, Haixi Institute, Chinese Academy of Sciences, Xiamen 361021, China
- Fujian Province Joint Innovation Key Laboratory of Fuel and Materials in Clean Nuclear Energy System, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou 350108, China
| | - Chunfa Liao
- Faculty of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Fan Yang
- Fujian Province Joint Innovation Key Laboratory of Fuel and Materials in Clean Nuclear Energy System, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou 350108, China
- Sichuan Jcc Rare Earth Matals New Material Co., Ltd., Chengdu 610213, China
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