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Aupiais J, Beccia MR, Monfort M, Den Auwer C. When radiochemistry meets radioecology (the marine environment). THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 935:173247. [PMID: 38754516 DOI: 10.1016/j.scitotenv.2024.173247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 04/30/2024] [Accepted: 05/12/2024] [Indexed: 05/18/2024]
Abstract
After the first atomic bomb test in Alamogordo in July 1945, followed by the Hiroshima and Nagasaki bombs in August 1945, radioecology became recognized as a branch of ecology in response to the radioactive fallout associated with the subsequent proliferation of atmospheric nuclear weapons testing which continued throughout the Cold War. In parallel, environmental radiochemistry emerged in the 70s to understand the chemical behavior of possible nuclear contaminants of the environment. In this discussion we stress the need to crosslink radioecology and chemical speciation, where radiochemistry and radioecology should meet to go beyond the present state of the art. Accordingly, we are seeking a methodology that calls for several angles of investigation: speciation (chemistry), toxicology (physiology and biology), accumulation data (environmental studies), distribution (geochemistry).
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Stefanelli R, Beccia MR, Solari PL, Suhard D, Pagnotta S, Jeanson A, Mullot JU, Vernier F, Moulin C, Monfort M, Aupiais J, Den Auwer C. Uranium contamination of bivalve Mytilus galloprovincialis, speciation and localization. ENVIRONMENTAL RESEARCH 2024; 252:118877. [PMID: 38609067 DOI: 10.1016/j.envres.2024.118877] [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: 01/29/2024] [Revised: 04/02/2024] [Accepted: 04/03/2024] [Indexed: 04/14/2024]
Abstract
Uranium is a natural radioelement (also a model for heavier actinides), but may be released through anthropogenic activities. In order to assess its environmental impact in a given ecosystem, such as the marine system, it is essential to understand its distribution and speciation, and also to quantify its bioaccumulation. Our objective was to improve our understanding of the transfer and accumulation of uranium in marine biota with mussels taken here as sentinel species because of their sedentary nature and ability to filter seawater. We report here on the investigation of uranium accumulation, speciation, and localization in Mytilus galloprovincialis using a combination of several analytical (Inductively Coupled Plasma Mass Spectrometry, ICP-MS), spectroscopic (X ray Absorption Spectroscopy, XAS, Time Resolved Laser Induced Fluorescence Spectroscopy, TRLIFS), and imaging (Transmission Electron Microscopy, TEM, μ-XAS, Secondary Ion Mass Spectrometry, SIMS) techniques. Two cohorts of mussels from the Toulon Naval Base and the Villefranche-sur-Mer location were studied. The measurement of uranium Concentration Factor (CF) values show a clear trend in the organs of M. galloprovincialis: hepatopancreas ≫ gill > body ≥ mantle > foot. Although CF values for the entire mussel are comparable for TNB and VFM, hepatopancreas values show a significant increase in those from Toulon versus Villefranche-sur-Mer. Two organs of interest were selected for further spectroscopic investigations: the byssus and the hepatopancreas. In both cases, U(VI) (uranyl) is accumulated in a diffuse pattern, most probably linked to protein complexing functions, with the absence of a condensed phase. While such speciation studies on marine organisms can be challenging, they are an essential step for deciphering the impact of metallic radionuclides on the marine biota in the case of accidental release. Following our assumptions on uranyl speciation in both byssus and hepatopancreas, further steps will include the inventory and identification of the proteins or metabolites involved.
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Affiliation(s)
- Romain Stefanelli
- Université Côte d'Azur, CNRS, Institut de Chimie de Nice, 06108 Nice, France; CEA, DAM, DIF, F-91297 Arpajon, France
| | - Maria Rosa Beccia
- Université Côte d'Azur, CNRS, Institut de Chimie de Nice, 06108 Nice, France
| | - Pier Lorenzo Solari
- Synchrotron Soleil, L'Orme des Merisiers, Saint-Aubin, BP 48, F-91192 Gif-sur-Yvette Cedex, France
| | - David Suhard
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-SANTE/SESANE/LRSI, Fontenay-aux-Roses 92260, France
| | - Sophie Pagnotta
- Université Côte d'Azur, Centre Commun de Microscopie Appliquée, 06108 Nice France
| | - Aurélie Jeanson
- Université Côte d'Azur, CNRS, Institut de Chimie de Nice, 06108 Nice, France
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Reiller PE. Predominance of the alkaline earth(II) triscarbonatoactinyl(VI) complexes in different geochemical contexts: Review of existing data and estimation of potentially unidentified species. CHEMOSPHERE 2024; 350:141049. [PMID: 38182083 DOI: 10.1016/j.chemosphere.2023.141049] [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: 10/12/2023] [Revised: 12/01/2023] [Accepted: 12/26/2023] [Indexed: 01/07/2024]
Abstract
From the available thermodynamic data in the literature, a review of the impact of the formation of complexes between triscarbonatoactinyl(VI) and alkaline earth(II) (Ae) is estimated under varying conditions. First, after analyzing the literature data and using the ascertained thermodynamic data available from the commissioned reviews from the Nuclear Energy Agency (Organization for the Economic Cooperation and Development) Thermochemical DataBank Project on actinides (An) U, Np, and Pu, and from recently determined AenUO2(CO3)3(4-2n)- thermodynamic functions, the formation of AenAnO2(CO3)3(4-2n)- complexes for Pu(VI) and Np(VI) are estimated using linear free energy relationships (LFERs). The data are in good agreement with the sole determination of AePuO2(CO3)32- from Jo et al. (Dalton Trans. 49, 11605), which gives a relative confidence in the LFERs, and allows the application to actual situations. From existing uranium data, first, the impact of the origin of the data on the calculated predominance is addressed under 0.1 M NaCl and atmospheric CO2(g); second, the influence of ionic strength and salinity on predominance is estimated; and finally, the influence of temperature up to 50 °C on the solubility of uraninite in a deep geological radioactive waste storage or disposal site is calculated. For neptunium and plutonium, the impact of the potential log10β°(AenAnO2(CO3)3(4-2n)-) on Pourbaix diagrams of Pu and Np in Mg-Ca-CO3 media are estimated from Jo et al. (Dalton Trans. 49, 11605) and LFERs. Finally, the application to the speciation of Pu and Np in seawater is proposed.
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Affiliation(s)
- Pascal E Reiller
- Université Paris-Saclay, CEA, Service de Physico-Chimie (SPC), F-91191, Gif-sur-Yvette CEDEX, France.
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Zerbini M, Solari PL, Orange F, Jeanson A, Leblanc C, Gomari M, Auwer CD, Beccia MR. Exploring uranium bioaccumulation in the brown alga Ascophyllum nodosum: insights from multi-scale spectroscopy and imaging. Sci Rep 2024; 14:1021. [PMID: 38200072 PMCID: PMC10781969 DOI: 10.1038/s41598-023-49293-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 12/06/2023] [Indexed: 01/12/2024] Open
Abstract
Legacy radioactive waste can be defined as the radioactive waste produced during the infancy of the civil nuclear industry's development in the mid-20th Century, a time when, unfortunately, waste storage and treatment were not well planned. The marine environment is one of the environmental compartments worth studying in this regard because of legacy waste in specific locations of the seabed. Comprising nearly 70% of the earth's service, the oceans are the largest and indeed the final destination for contaminated fresh waters. For this reason, long-term studies of the accumulation biochemical mechanisms of metallic radionuclides in the marine ecosystem are required. In this context the brown algal compartment may be ecologically relevant because of forming large and dense algal beds in coastal areas and potential important biomass for contamination. This report presents the first step in the investigation of uranium (U, an element used in the nuclear cycle) bioaccumulation in the brown alga Ascophyllum nodosum using a multi-scale spectroscopic and imaging approach. Contamination of A. nodosum specimens in closed aquaria at 13 °C was performed with a defined quantity of U(VI) (10-5 M). The living algal uptake was quantified by ICP-MS and a localization study in the various algal compartments was carried out by combining electronic microscopy imaging (SEM), X-ray Absorption spectroscopy (XAS) and micro X-ray Florescence (μ-XRF). Data indicate that the brown alga is able to concentrate U(VI) by an active bioaccumulation mechanism, reaching an equilibrium state after 200 h of daily contamination. A comparison between living organisms and dry biomass confirms a stress-response process in the former, with an average bioaccumulation factor (BAF) of 10 ± 2 for living specimens (90% lower compared to dry biomass, 142 ± 5). Also, these results open new perspectives for a potential use of A. nodosum dry biomass as uranium biosorbent. The different partial BAFs (bioaccumulation factors) range from 3 (for thallus) to 49 (for receptacles) leading to a compartmentalization of uranium within the seaweed. This reveals a higher accumulation capacity in the receptacles, the algal reproductive parts. SEM images highlight the different tissue distributions among the compartments with a superficial absorption in the thallus and lateral branches and several hotspots in the oospheres of the female individuals. A preliminary speciation XAS analysis identified a distinct U speciation in the gametes-containing receptacles as a pseudo-autunite phosphate phase. Similarly, XAS measurements on the lateral branches (XANES) were not conclusive with regards to the occurrence of an alginate-U complex in these tissues. Nonetheless, the hypothesis that alginate may play a role in the speciation of U in the algal thallus tissues is still under consideration.
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Affiliation(s)
- Micol Zerbini
- Institut de Chimie de Nice, UMR 7272, Université Côte d'Azur, CNRS, 06108, Nice, France
| | - Pier Lorenzo Solari
- Synchrotron SOLEIL, L'Orme des Merisiers, Départementale 128, 91190, Saint-Aubin, France
| | - Francois Orange
- Université Côte d'Azur, Centre Commun de Microscopie Appliquée, 06108, Nice, France
| | - Aurélie Jeanson
- Institut de Chimie de Nice, UMR 7272, Université Côte d'Azur, CNRS, 06108, Nice, France
| | - Catherine Leblanc
- Station Biologique de Roscoff, UMR 8227, Sorbonne Université, CNRS, 29680, Roscoff, France
| | - Myriam Gomari
- Institut de Chimie de Nice, UMR 7272, Université Côte d'Azur, CNRS, 06108, Nice, France
| | - Christophe Den Auwer
- Institut de Chimie de Nice, UMR 7272, Université Côte d'Azur, CNRS, 06108, Nice, France
| | - Maria Rosa Beccia
- Institut de Chimie de Nice, UMR 7272, Université Côte d'Azur, CNRS, 06108, Nice, France.
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Shang C, Coreau N, Macé N, Descostes M, Reiller PE. Implications of recently derived thermodynamic data and specific ionic interaction theory parameters for (Mg/Ca) nUO 2(CO 3) 3(4-2n)- complexes on the predominance of the Mg 2+-Ca 2+-UO 22+-OH --CO 32- systems, and application to natural and legacy-mine waters. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 858:159927. [PMID: 36343816 DOI: 10.1016/j.scitotenv.2022.159927] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 10/24/2022] [Accepted: 10/30/2022] [Indexed: 06/16/2023]
Abstract
The formation of alkaline earth(II)triscarbonatouranyl(VI) (AenUO2(CO3)3(4-2n)-) species that have been evidenced both in laboratory and in-field studies, is important from slightly acidic pH up to near degraded cementitious in carbonated waters. They are also showing distinctive luminescence properties with a hypsochromic shift relative to UO22+. The conditions of pH, activities of alkaline earth(II) free ions (mostly Mg2+ and Ca2+) and carbonate ions (HCO3-) can be predicted from the thermodynamic functions and constants. The predictive validity of the activity of major alkaline ions (mostly Na+) is determined from the models used to describe the ionic strength comportment of these species, particularly using coefficients from the specific ion interaction theory (SIT). The stability domains of these species are better defined as a function of the activity of the constituents, and applied to natural waters. In this work, using recently obtained complete thermodynamic data and SIT coefficients, we will draw the stability domains of the AenUO2(CO3)3(4-2n)- species in combinations of activities of H+, HCO3-, Mg2+, Ca2+, and Na+ for a wide selection of water compositions from the literature. Water samples were collected near a French mining legacy-site (Site du Bosc, Lodève, France). After determining the major ion compositions, we will verify that the luminescence signal of uranium is in agreement with the predicted speciation in the stability domains.
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Affiliation(s)
- Chengming Shang
- Université Paris-Saclay, CEA, Service d'Études Analytiques et de Réactivité des Surfaces (SEARS), F-91191 Gif-sur-Yvette CEDEX, France
| | - Nathalie Coreau
- Université Paris-Saclay, CEA, Service d'Études du Comportement des Radionucléïdes (SECR), F-91191 Gif-sur-Yvette CEDEX, France
| | - Nathalie Macé
- Université Paris-Saclay, CEA, Service d'Études du Comportement des Radionucléïdes (SECR), F-91191 Gif-sur-Yvette CEDEX, France
| | - Michael Descostes
- ORANO Mining, Environmental R&D Department, 125 Avenue de Paris, 92330 Châtillon, France; PSL University/Mines ParisTech, Centre de Géosciences, 35 rue Saint-Honoré, 77305 Fontainebleau, France
| | - Pascal E Reiller
- Université Paris-Saclay, CEA, Service d'Études Analytiques et de Réactivité des Surfaces (SEARS), F-91191 Gif-sur-Yvette CEDEX, France.
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Beccia MR, Creff G, Den Auwer C, Di Giorgio C, Jeanson A, Michel H. Environmental Chemistry of Radionuclides : Open Questions and Perspectives. Chempluschem 2022; 87:e202200108. [PMID: 35778807 DOI: 10.1002/cplu.202200108] [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: 03/29/2022] [Revised: 06/13/2022] [Indexed: 11/10/2022]
Abstract
Since the discovery of nuclear fission, atomic energy has become for mankind a source of energy, but it has also become a source of consternation. This Perspective presents and discusses the methodological evolution of the work performed in the radiochemistry laboratory that is part of the Institut de Chimie de Nice (France). Most studies in radioecology and environmental radiochemistry have intended to assess the impact and inventory of very low levels of radionuclides in specific environmental compartments. But chemical mechanisms at the molecular level remain a mystery because it is technically impossible (due to large dilution factors) to assess speciation in those systems. Ultra-trace levels of contamination and heterogeneity often preclude the use of spectroscopic techniques and the determination of direct speciation data, thus forming the bottleneck of speciation studies. The work performed in the Nice radiochemistry laboratory underlines this effort to input speciation data (using spectroscopic techniques like X ray Absorption Spectroscopy) in environmental and radioecological metrics.
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Affiliation(s)
| | - Gaëlle Creff
- Université Côte d'Azur, CNRS, ICN, 06108, Nice, France
| | | | | | | | - Hervé Michel
- Université Côte d'Azur, CNRS, ICN, 06108, Nice, France
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Gal JF, Maria PC, Duñach E, Meierhenrich UJ. Evolution of Chemical Research in Nice, Côte d'Azur: From Early Laboratories to the 'Institut de Chimie de Nice'. Chempluschem 2022; 87:e202100532. [PMID: 35312225 DOI: 10.1002/cplu.202100532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 02/23/2022] [Indexed: 02/03/2023]
Abstract
The 'Institut de Chimie de Nice' (ICN), founded in 2012, celebrates its 10th anniversary in 2022. Today, the ICN is part of the University Côte d'Azur (UCA), one out of nine excellence universities in France. ICN is also affiliated to the CNRS. We use the institute's anniversary to reflect on the origins and the successful evolution of research in chemical sciences in Nice, France. We outline research topics and their development towards modern chemistry in Nice that are characterized by innovation and territorial anchoring. At present, four research axes, namely aroma and perfume chemistry, medicinal chemistry, radiochemistry, and material chemistry structure the institute. ICN has created five start-up companies and includes a technological platform. The ICN is central part of the university and contributes to the advancement in chemical sciences as evidenced by both fundamental research and active contributions to local partnerships.
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Affiliation(s)
- Jean-François Gal
- Université Côte d'Azur, Institut de Chimie de Nice, CNRS UMR 7272, 28 Avenue Valrose, 06108, Nice, France
| | - Pierre-Charles Maria
- Université Côte d'Azur, Institut de Chimie de Nice, CNRS UMR 7272, 28 Avenue Valrose, 06108, Nice, France
| | - Elisabet Duñach
- Université Côte d'Azur, Institut de Chimie de Nice, CNRS UMR 7272, 28 Avenue Valrose, 06108, Nice, France
| | - Uwe J Meierhenrich
- Université Côte d'Azur, Institut de Chimie de Nice, CNRS UMR 7272, 28 Avenue Valrose, 06108, Nice, France
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Reeves B, Beccia MR, Jeanson A, Solari PL, Siberchicot B, Berthomieu C, Marcellin D, Bremond N, Kerdikoshvili T, Michel H, Passeron Mangialajo L, Monfort M, Moulin C, Den Auwer C. Accumulation and Speciation of Cobalt in Paracentrotus lividus. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:3462-3470. [PMID: 35235315 DOI: 10.1021/acs.est.1c06702] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Since the first human release of radionuclides on Earth at the end of the Second World War, impact assessments have been implemented. Radionuclides are now ubiquitous, and the impact of local accidental release on human activities, although of low probability, is of tremendous social and economic consequences. Although radionuclide inventories (at various scales) are essential as input data for impact assessment, crucial information on physicochemical speciation is lacking. Among the metallic radionuclides of interest, cobalt-60 is one of the most important activation products generated in the nuclear industry. In this work, a marine model ecosystem has been defined because seawater and more generally marine ecosystems are final receptacles of metal pollution. A multistep approach from quantitative uptake to understanding of the accumulation mechanism has been implemented with the sea urchin Paracentrotus lividus. In a well-controlled aquarium, the day-by-day uptake of cobalt and its quantification in different compartments of the sea urchin were monitored with various conditions of exposure by combining ICP-OES analysis and γ spectrometry. Cobalt is mainly distributed following the rating intestinal tract ≫ gonads > shell spines. Cobalt speciation in seawater and inside the gonads and the intestinal tract was determined using extended X-ray absorption fine structure (EXAFS). The cobalt inside the gonads and the intestinal tract is mainly complexed by the toposome, the main protein in the sea urchin P. lividus. Complexation with purified toposome was characterized and a complexation site combining EXAFS and AIMD (ab initio molecular dynamics) was proposed implying monodentate carboxylates.
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Affiliation(s)
- Benjamin Reeves
- Université Côte d'Azur, CNRS, ICN, 06108 Nice, France
- CEA, DAM, DIF, F-92297 Arpajon, France
| | | | | | | | - Bruno Siberchicot
- CEA, DAM, DIF, F-92297 Arpajon, France
- CEA, Laboratoire Matière en Conditions Extrêmes, Université Paris-Saclay, F-91680 Bruyères-le-Châtel, France
| | | | - Didier Marcellin
- CEA, CNRS, Aix Marseille Université, BIAM, 13108 Saint Paul-Lez-Durance, France
| | - Nicolas Bremond
- CEA, CNRS, Aix Marseille Université, BIAM, 13108 Saint Paul-Lez-Durance, France
| | | | - Hervé Michel
- Université Côte d'Azur, CNRS, ICN, 06108 Nice, France
| | | | | | - Christophe Moulin
- CEA, DAM, DIF, F-92297 Arpajon, France
- Secrétariat Général de la Défense et de la Sécurité Nationale, 75007 Paris, Seconded from CEA
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Shang C, Reiller PE. Effect of temperature on the complexation of triscarbonatouranyl(VI) with calcium and magnesium in NaCl aqueous solution. Dalton Trans 2021; 50:17165-17180. [PMID: 34781338 DOI: 10.1039/d1dt03204f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The complex formation of triscarbonatouranyl(VI) UO2(CO3)34- with the alkaline earth metal ions Mg2+ and Ca2+ in 0.10 mol kgw-1 NaCl was studied at variable temperatures: 5-30 °C for Mg2+ and 10-50 °C for Ca2+. Under appropriate conditions, the ternary complexes (MnUO2(CO3)3(4-2n)- with n = 1 for Mg, n = {1; 2} for Ca) were identified by time-resolved laser-induced luminescence spectrometry. Their pure spectral components at 50 °C for CanUO2(CO3)3(4-2n)- and 30 °C for MgUO2(CO3)32- were recovered by multivariate curve resolution alternating least-squares analysis. Approximation models were tested to fit the experimental data-the equilibrium constants of complexation measured at different temperatures-and deduce the thermodynamic functions, i.e., enthalpy, entropy, and heat capacity. The weak influence of temperature on complexation constants induces large uncertainties in terms of thermodynamic functions. Assuming the enthalpy is constant with temperature using the Van't Hoff equation, the first stepwise complexation of UO2(CO3)34- by Ca2+ is estimated to be slightly endothermic, with , while the second stepwise complexation of CaUO2(CO3)32- by Ca2+ with is slightly exothermic, . In contrast to Ca2+, the complexation of UO2(CO3)34- by Mg2+ is slightly exothermic, with . These values are not significantly different from zero inasmuch as the uncertainties are important due to a weak dependence of log10 K° values. The entropic character of the complexation is verified as for the first stepwise complexation of UO2(CO3)34- by Ca2+, for the second stepwise complexation of CaUO2(CO3)32- by Ca2+, and for the complexation of UO2(CO3)34- by Mg2+. The energetics of complexation and sensitivity analysis of the model estimates with temperature are discussed. The uranium speciation in the case of the safety of nuclear waste management, using the present thermodynamic functions, provides support to the assessment of underground nuclear waste repositories.
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Affiliation(s)
- Chengming Shang
- Université Paris-Saclay, CEA, Service d'Études Analytiques et de Réactivité des Surfaces (SEARS), F-91191 Gif-sur-Yvette CEDEX, France.
| | - Pascal E Reiller
- Université Paris-Saclay, CEA, Service d'Études Analytiques et de Réactivité des Surfaces (SEARS), F-91191 Gif-sur-Yvette CEDEX, France.
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Shang C, Reiller PE. The determination of the thermodynamic constants of MgUO 2(CO 3) 32- complex in NaClO 4 and NaCl media by time-resolved luminescence spectroscopy, and applications in different geochemical contexts. Dalton Trans 2021; 50:4363-4379. [PMID: 33693449 DOI: 10.1039/d0dt04124f] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The formation constants and specific ion interaction coefficients of MgUO2(CO3)32- complex were determined in 0.1 to 1.0 mol kgw-1 NaCl and 0.10 to 2.21 mol kgw-1 NaClO4 media in the framework of the specific ion interaction theory (SIT), by time-resolved laser-induced luminescence spectroscopy. The upper limits of ionic strength were chosen in order to limit luminescence quenching effects generated by high concentrations of Cl- and ClO4- already observed during our earlier studies on CanUO2(CO3)3(4-2n)- complexes (Shang & Reiller, Dalton Trans., 49, 466; Shang et al., Dalton Trans., 49, 15443). The cumulative formation constant determined is , and the specific ion interaction coefficients are ε(MgUO2(CO3)32-, Na+) = 0.19 ± 0.11 kgw mol-1 in NaClO4 and ε(MgUO2(CO3)32-, Na+) = 0.09 ± 0.16 kgw mol-1 in NaCl. Two gratings of 300 and 1800 lines per mm were used to acquire MgUO2(CO3)32- luminescence spectra, where the high-resolution 1800 lines per mm grating detected slight spectral shifts for the principal luminescent bands relative to CanUO2(CO3)3(4-2n)-. The applications of the consistent set of thermodynamic constants and ε values for MnUO2(CO3)3(4-2n)- (M = Mg and Ca) were examined in different geochemical contexts, where Mg over Ca concentration ratio varies to help defining the relative importance of these species.
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Affiliation(s)
- Chengming Shang
- Université Paris-Saclay, CEA, Service d'Études Analytiques et de Réactivité des Surfaces (SEARS), F-91191 Gif-sur-Yvette CEDEX, France.
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11
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Shang C, Reiller PE, Vercouter T. Spectroluminescence measurements of the stability constants of Ca nUO 2(CO 3) 3(4-2n)- complexes in NaClO 4 medium and the investigation of interaction effects. Dalton Trans 2020; 49:15443-15460. [PMID: 33140787 DOI: 10.1039/d0dt03164j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The stability constants of ternary calcium uranyl tricarbonate complexes, CaUO2(CO3)32- and Ca2UO2(CO3)3(aq), were determined in NaClO4 medium at various ionic strengths using time-resolved laser-induced luminescence spectroscopy (TRLS) - also known as time-resolved laser-induced fluorescence spectroscopy (TRLFS). As in a previous study, the potential precipitation of schoepite (UO3·2H2O) and calcite (CaCO3) was avoided via titration of the triscarbonatouranyl complex with Ca2+ at varying pH values. The Ringböm coefficients relative to UO2(CO3)34- were individually evaluated under test sample conditions. Steadily enhanced luminescence intensity and increased decay-times were representative of complexation processes. The stoichiometry of calcium was quantified by slope analysis, and its measured intensity was corrected by using the corresponding Ringböm coefficient. The conditional formation constants, i.e. log10 Kn.1.3, were then assessed after rounding off the slope values to their nearest integers. Cumulative formation constants at infinite dilution log10 β°n.1.3, and specific ion interaction parameters ε were determined based on the experimental origin and slope values, respectively, over the range of 0.1-2.46 mol kgw-1 NaClO4 using the specific ion interaction theory (SIT) approach. The cumulative stability constants are log10 β°(CaUO2(CO3)32-) = 27.26 ± 0.04 and log10 β°(Ca2UO2(CO3)3(aq)) = 30.53 ± 0.06. The specific ion interaction coefficients are estimated to be ε(CaUO2(CO3)32-,Na+) = (0.02 ± 0.04) kgw mol-1 and ε(Ca2UO2(CO3)3(aq),NaClO4) = (0.18 ± 0.07) kgw mol-1. These latter values are different from the ones that were previously obtained in NaCl, and underlying causes are discussed from different aspects. This work provides valuable information to address the interaction effects between Ca-UO2-CO3 species and 1 : 1 type electrolytes. It is suggested that the affinity of the cation in a background electrolyte with CanUO2(CO3)3(4-2n)- (n = {1;2}) has to be taken into consideration at high ionic strengths, especially for globally non-charged species.
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Affiliation(s)
- Chengming Shang
- Université Paris-Saclay, CEA, Service d'Études Analytiques et de Réactivité des Surfaces (SEARS), F-91191 Gif-sur-Yvette CEDEX, France.
| | - Pascal E Reiller
- Université Paris-Saclay, CEA, Service d'Études Analytiques et de Réactivité des Surfaces (SEARS), F-91191 Gif-sur-Yvette CEDEX, France.
| | - Thomas Vercouter
- Université Paris-Saclay, CEA, Service d'Études Analytiques et de Réactivité des Surfaces (SEARS), F-91191 Gif-sur-Yvette CEDEX, France.
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12
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Oher H, Vercouter T, Réal F, Shang C, Reiller PE, Vallet V. Influence of Alkaline Earth Metal Ions on Structures and Luminescent Properties of Na mM nUO 2(CO 3) 3(4-m-2n)- (M = Mg, Ca; m, n = 0-2): Time-Resolved Fluorescence Spectroscopy and Ab Initio Studies. Inorg Chem 2020; 59:15036-15049. [PMID: 33000939 DOI: 10.1021/acs.inorgchem.0c01986] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The luminescence spectra of triscarbonatouranyl complexes were determined by experimental and theoretical methods. Time-resolved laser-induced fluorescence spectroscopy was used to monitor spectra of uranyl and bicarbonate solutions at 0.1 mol kgw-1 ionic strength and pH ca. 8. The concentrations of Mg2+ and Ca2+ in the samples were chosen in order to vary the proportions of the alkaline earth ternary uranyl complexes MgUO2(CO3)32-, CaUO2(CO3)32-, and Ca2UO2(CO3)3. The luminescence spectrum of each complex was determined by decomposition in order to compare it with the simulated spectra of model structures NamMnUO2(CO3)3(4-m-2n)- (M = Mg, Ca; m, n = 0-2) obtained by quantum chemical methods. The density functional theory (DFT) and time-dependent (TD)-DFT methods were used with the PBE0 functional to optimize the structures in the ground and excited states, respectively, including relativistic effects at the spin-free level, and water solvent effects using a continuum polarizable conductor model. The changes in the structural parameters were quantified with respect to the nature and the amount of alkaline earth counterions to explain the luminescence spectra behavior. The first low-lying excited state was successfully computed, together with the vibrational harmonic frequencies. The DFT calculations confirmed that uranyl luminescence originates from electronic transitions from one of the four nonbonding 5f orbitals of uranium to an orbital that has a uranyl-σ (5f, 6d) character mixed with the 2p atomic orbitals of the carbonate oxygens. Additional single-point calculations using the more accurate TD-DFT/CAM-B3LYP allow one to determine the position of the luminescence "hot band" for each structure in the range 467-476 nm and compared fairly well with experimental reports at around 465 nm. The complete luminescence spectra were built from theoretical results with the corresponding assignment of the electronic transitions and vibronic modes involved, mainly the U-Oax stretching mode. The resulting calculated spectra showed a very good agreement with experimental band positions and band spacing attributed to MgUO2(CO3)32-, CaUO2(CO3)32-, and Ca2UO2(CO3)3. The evolution of luminescence intensities with the number of alkaline earth metal ions in the structure was also correctly reproduced.
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Affiliation(s)
- Hanna Oher
- Service d'Études Analytiques et de Réactivité des Surfaces, Université Paris-Saclay, CEA, 91191 Gif-sur-Yvette, France.,UMR 8523-PhLAM-Physique des Lasers Atomes et Molécules, Université de Lille, CNRS, 59000 Lille, France
| | - Thomas Vercouter
- Service d'Études Analytiques et de Réactivité des Surfaces, Université Paris-Saclay, CEA, 91191 Gif-sur-Yvette, France
| | - Florent Réal
- UMR 8523-PhLAM-Physique des Lasers Atomes et Molécules, Université de Lille, CNRS, 59000 Lille, France
| | - Chengming Shang
- Service d'Études Analytiques et de Réactivité des Surfaces, Université Paris-Saclay, CEA, 91191 Gif-sur-Yvette, France
| | - Pascal E Reiller
- Service d'Études Analytiques et de Réactivité des Surfaces, Université Paris-Saclay, CEA, 91191 Gif-sur-Yvette, France
| | - Valérie Vallet
- UMR 8523-PhLAM-Physique des Lasers Atomes et Molécules, Université de Lille, CNRS, 59000 Lille, France
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13
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Reiller PE, Descostes M. Development and application of the thermodynamic database PRODATA dedicated to the monitoring of mining activities from exploration to remediation. CHEMOSPHERE 2020; 251:126301. [PMID: 32145577 DOI: 10.1016/j.chemosphere.2020.126301] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 11/19/2019] [Accepted: 02/20/2020] [Indexed: 06/10/2023]
Abstract
A growing demand exists on the monitoring of both uranium mining activities and their environmental impacts. In order to help understanding and modelling both these aspects, a thermodynamic database dedicated to uranium mining activities is developed: the PRODATA database. Relevant species and phases for uranium and radium are chosen from existing compilations of data, complemented with important missing data for the application to mining activities and environmental monitoring. Important major anions and cations chemistry are included, as well as secondary pollutants such as arsenic, lead, or nickel. Applications of the PRODATA extracted database file for PhreeqC to theoretical speciation calculations of uranium and radium for actual water compositions - either linked to uranium mining activities, or under monitoring for environmental survey - are presented. Wider applications to other available water compositions from different geochemical concepts are also tested. For the tested cases, the major radium and uranium species obtained using PRODATA are compared with other available thermodynamic database (Thermochimie, LLNL, Wateq4f, Minteq, PSI/NAGRA). The choice of the database file - and of the ionic strength correction - can strongly impact the final speciation results. Sulphate complexes of radium and uranium are of particular importance in mining exploitation context, and carbonate uranium complexes - particularly [Formula: see text] complexes - are crucial for environmental monitoring. The latter complexes are key species for the aqueous speciation of uranium, even in reducing environment where U(IV) low solubility usually governs uranium mobility.
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Affiliation(s)
- Pascal E Reiller
- Den - Service D'Études Analytiques et de Réactivité des Surfaces (SEARS), CEA, Université Paris-Saclay, F-91191, Gif-sur-Yvette, France.
| | - Michaël Descostes
- ORANO Group Mining R&D Dpt, 125 Avenue de Paris, F-92320, Châtillon, France
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14
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Shang C, Reiller PE. Determination of formation constants and specific ion interaction coefficients for CanUO2(CO3)3(4−2n)− complexes in NaCl solution by time-resolved laser-induced luminescence spectroscopy. Dalton Trans 2020; 49:466-481. [DOI: 10.1039/c9dt03543e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The formation constants of CaUO2(CO3)32− and Ca2UO2(CO3)3(aq) were determined in NaCl medium at ionic strengths between 0.1 and 1 mol kgw−1 using time-resolved laser-induced luminescence spectroscopy (TRLS).
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Affiliation(s)
- Chengming Shang
- Den – Service d’Études Analytiques et de Réactivité des Surfaces (SEARS)
- CEA
- Université Paris-Saclay
- F-91191 Gif-sur-Yvette CEDEX
- France
| | - Pascal E. Reiller
- Den – Service d’Études Analytiques et de Réactivité des Surfaces (SEARS)
- CEA
- Université Paris-Saclay
- F-91191 Gif-sur-Yvette CEDEX
- France
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15
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Caralampio DZ, Reeves B, Beccia MR, Martínez JM, Pappalardo RR, den Auwer C, Sánchez Marcos E. Revisiting the cobalt(II) hydration from molecular dynamics and X-ray absorption spectroscopy. Mol Phys 2019. [DOI: 10.1080/00268976.2019.1650209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
| | - Benjamin Reeves
- Institut de Chimie de Nice, Université Côte d'Azur, CNRS, UMR 7272, Nice, France
| | - Maria R. Beccia
- Institut de Chimie de Nice, Université Côte d'Azur, CNRS, UMR 7272, Nice, France
| | - José M. Martínez
- Department of Physical Chemistry, University of Seville, Seville, Spain
| | | | - Christophe den Auwer
- Institut de Chimie de Nice, Université Côte d'Azur, CNRS, UMR 7272, Nice, France
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16
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Reeves B, Beccia MR, Solari PL, Smiles DE, Shuh DK, Berthomieu C, Marcellin D, Bremond N, Mangialajo L, Pagnotta S, Monfort M, Moulin C, Den Auwer C. Uranium Uptake in Paracentrotus lividus Sea Urchin, Accumulation and Speciation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:7974-7983. [PMID: 31187628 DOI: 10.1021/acs.est.8b06380] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Uranium speciation and bioaccumulation were investigated in the sea urchin Paracentrotus lividus. Through accumulation experiments in a well-controlled aquarium followed by ICP-OES analysis, the quantification of uranium in the different compartments of the sea urchin was performed. Uranium is mainly distributed in the test (skeletal components), as it is the major constituent of the sea urchin, but in terms of quantity of uranium per gram of compartment, the following rating: intestinal tract > gonads ≫ test, was obtained. Combining both extended X-ray Absorption Spectroscopy and time-resolved laser-induced fluorescence spectroscopic analysis, it was possible to identify two different forms of uranium in the sea urchin, one in the test, as a carbonato-calcium complex, and the second one in the gonads and intestinal tract, as a protein complex. Toposome is a major calcium-binding transferrin-like protein contained within the sea urchin. EXAFS data fitting of both contaminated organs in vivo and the uranium-toposome complex from protein purified out of the gonads revealed that it is suspected to complex uranium in gonads and intestinal tract. This hypothesis is also supported by the results from two imaging techniques, i.e., Transmission Electron Microscopy and Scanning Transmission X-ray Microscopy. This thorough investigation of uranium uptake in sea urchin is one of the few attempts to assess the speciation in a living marine organism in vivo.
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Affiliation(s)
- Benjamin Reeves
- Université Côte d'Azur , CNRS, Institut de Chimie de Nice, UMR 7272 , 06108 Nice , France
- CEA, DAM, DIF , F-92297 Arpajon , France
| | - Maria Rosa Beccia
- Université Côte d'Azur , CNRS, Institut de Chimie de Nice, UMR 7272 , 06108 Nice , France
| | - Pier Lorenzo Solari
- Synchrotron Soleil, L'Orme des Merisiers , Saint-Aubin, BP 48 , F-91192 Gif-sur-Yvette Cedex , France
| | - Danil E Smiles
- Chemical Sciences Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - David K Shuh
- Chemical Sciences Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Catherine Berthomieu
- CEA, CNRS , Aix Marseille Université , BIAM UMR7265, 13115 Saint Paul-Lez-Durance , France
| | - Didier Marcellin
- CEA, CNRS , Aix Marseille Université , BIAM UMR7265, 13115 Saint Paul-Lez-Durance , France
| | - Nicolas Bremond
- CEA, CNRS , Aix Marseille Université , BIAM UMR7265, 13115 Saint Paul-Lez-Durance , France
| | - Luisa Mangialajo
- Université Côte d'Azur , CNRS, UMR 7035 ECOSEAS , 06108 Nice , France
| | - Sophie Pagnotta
- Université Côte d'Azur , Centre Commun de Microscopie Appliquée , 06108 Nice , France
| | | | - Christophe Moulin
- Prime Minister Office, Secrétariat général de la défense et de la sécuritié nationale , 75007 Paris , France
| | - Christophe Den Auwer
- Université Côte d'Azur , CNRS, Institut de Chimie de Nice, UMR 7272 , 06108 Nice , France
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17
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Yantasee W, Fryxell GE, Pattamakomsan K, Sangvanich T, Wiacek RJ, Busche B, Addleman RS, Timchalk C, Ngamcherdtrakul W, Siriwon N. Selective capture of radionuclides (U, Pu, Th, Am and Co) using functional nanoporous sorbents. JOURNAL OF HAZARDOUS MATERIALS 2019; 366:677-683. [PMID: 30580142 PMCID: PMC6927554 DOI: 10.1016/j.jhazmat.2018.12.043] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 11/29/2018] [Accepted: 12/13/2018] [Indexed: 06/09/2023]
Abstract
This work evaluated sorbent materials created from nanoporous silica self-assembled with monolayer (SAMMS) of hydroxypyridinone derivatives (1,2-HOPO, 3,2-HOPO, 3,4-HOPO), acetamide phosphonate (Ac-Phos), glycine derivatives (IDAA, DE4A, ED3A), and thiol (SH) for capturing of actinides and transition metal cobalt. In filtered seawater doped with competing metals (Cr, Mn, Fe, Co, Cu, Zn, Se, Mo) at levels encountered in environmental or physiological samples, 3,4-HOPO-SAMMS was best at capturing uranium (U(VI)) from pH 2-8, Ac-Phos and 1,2-HOPO-SAMMS sorbents were best at pH < 2. 3,4-HOPO-SAMMS effectively captured thorium (Th(IV)) and plutonium (239Pu(IV)) from pH 2-8, and americium (241Am(III)) from pH 5-8. Capturing cobalt (Co(II)) from filtered river water doped with competing metals (Cu, As, Ag, Cd, Hg, Tl, and Pb) was most effective from pH 5-8 with binding affinity ranged from IDAA > DE4A > ED3A > Ac-Phos > SH on SAMMS. Iminodiacetic acid (IDAA)-SAMMS was also outstanding at capturing Co(II) in ground and seawater. Within 5 min, over 99% of U(VI) and Co(II) in seawater was captured by 3,4-HOPO-SAMMS and IDAA-SAMMS, respectively. These nanoporous materials outperformed the commercially available cation sorbents in binding affinity and adsorption rate. They have great potential for water treatment and recovery of actinides and cobalt from complex matrices.
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Affiliation(s)
- Wassana Yantasee
- Department of Biomedical Engineering, Oregon Health and Science University (OHSU) School of Medicine, Portland, OR, USA.
| | - Glen E Fryxell
- Pacific Northwest National Laboratory (PNNL), Richland, WA, USA
| | | | - Thanapon Sangvanich
- Department of Biomedical Engineering, Oregon Health and Science University (OHSU) School of Medicine, Portland, OR, USA
| | - Robert J Wiacek
- Pacific Northwest National Laboratory (PNNL), Richland, WA, USA
| | - Brad Busche
- Pacific Northwest National Laboratory (PNNL), Richland, WA, USA
| | | | | | - Worapol Ngamcherdtrakul
- Department of Biomedical Engineering, Oregon Health and Science University (OHSU) School of Medicine, Portland, OR, USA
| | - Natnaree Siriwon
- Department of Biomedical Engineering, Oregon Health and Science University (OHSU) School of Medicine, Portland, OR, USA
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18
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Direct measurement of uranium in seawater by inductively coupled plasma mass spectrometry. Talanta 2018; 183:18-23. [DOI: 10.1016/j.talanta.2018.02.045] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 02/08/2018] [Accepted: 02/10/2018] [Indexed: 11/17/2022]
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19
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Dumas T, Guigue M, Moisy P, Colina-Ruiz R, Mustre de Leon J, Matara-Aho M, Solari PL, Monfort M, Moulin C, Beccia MR, Auwer CD. Experimental Speciation of Plutonium(IV) in Natural Seawater. ChemistrySelect 2018. [DOI: 10.1002/slct.201702762] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Thomas Dumas
- Commissariat à l'Energie Atomique; Nuclear Energy Division; Research Department on Mining and Fuel Recycling Processes; F-30207 Bagnols sur Cèze France
| | - Mireille Guigue
- Commissariat à l'Energie Atomique; Nuclear Energy Division; Research Department on Mining and Fuel Recycling Processes; F-30207 Bagnols sur Cèze France
| | - Philippe Moisy
- Commissariat à l'Energie Atomique; Nuclear Energy Division; Research Department on Mining and Fuel Recycling Processes; F-30207 Bagnols sur Cèze France
| | - Roberto Colina-Ruiz
- Université Côte d'Azur; CNRS; Institut de Chimie de Nice, UMR7272; F-06100 Nice France
- Departamento de Fisica Aplicada; Cinvestav-Merida; Carretera Antigua a Progreso km. 6, Merida Yucatań 97310 Mexico
| | - Jose Mustre de Leon
- Departamento de Fisica Aplicada; Cinvestav-Merida; Carretera Antigua a Progreso km. 6, Merida Yucatań 97310 Mexico
| | - Minja Matara-Aho
- Laboratory of Radiochemistry; Department of Chemistry; University of Helsinki; FI-00014 Finland
- Université Côte d'Azur; CNRS; Institut de Chimie de Nice, UMR7272; F-06100 Nice France
| | - Pier Lorenzo Solari
- Synchrotron SOLEIL L'Orme des Merisiers; Saint-Aubin; BP 48 F-91192 Gif-sur- Yvette Cedex France
| | - Marguerite Monfort
- Commissariat à l'Energie Atomique; Military application Division, DIF; F-91297 Arpajon France
| | - Christophe Moulin
- Commissariat à l'Energie Atomique; Military application Division, DIF; F-91297 Arpajon France
| | - Maria Rosa Beccia
- Université Côte d'Azur; CNRS; Institut de Chimie de Nice, UMR7272; F-06100 Nice France
| | - Christophe Den Auwer
- Université Côte d'Azur; CNRS; Institut de Chimie de Nice, UMR7272; F-06100 Nice France
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20
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Liu JB, Chen GP, Huang W, Clark DL, Schwarz WHE, Li J. Bonding trends across the series of tricarbonato-actinyl anions [(AnO 2)(CO 3) 3] 4- (An = U-Cm): the plutonium turn. Dalton Trans 2018; 46:2542-2550. [PMID: 28154870 DOI: 10.1039/c6dt03953g] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Actinyl-tricarbonato anions [(AnO2)(CO3)3]4- (An = U-Cm) in various environments were investigated using theoretical approaches of quantum-mechanics, molecular-mechanics and cluster-models. Cations and solvent molecules in the 2nd coordination sphere affect the equatorial An←Oeq bonds more than the axial An[triple bond, length as m-dash]Oax bonds. Common actinide contraction is found for calculated and experimental axial bond lengths of 92U to 94Pu, though no longer for 94Pu to 96Cm. The tendency of U to Pu forming actinyl(vi) species dwindles away toward Cm, which already features the preferred AnIII/LnIII oxidation state of the later actinides and all lanthanides. The well known change from d-type to typical U-Pu-Cm type and then to f-type behavior is labeled as the plutonium turn, a phenomenon that is caused by f-orbital energy-decrease and f-orbital localization with increase of both nuclear charge and oxidation state, and a non-linear variation of effective f-electron population across the actinide series. Both orbital and configuration mixing and occupation of antibonding 5f type orbitals increase, weakening the AnOax bonds and reducing the highest possible oxidation states of the later actinides.
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Affiliation(s)
- Jian-Biao Liu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Shandong Normal University, Jinan 250014, China and Department of Chemistry and Key Laboratory of Organic Optoelectronics & Molecular Engineering of the Ministry of Education, Tsinghua University, Beijing 100084, China.
| | - Guo P Chen
- Department of Chemistry and Key Laboratory of Organic Optoelectronics & Molecular Engineering of the Ministry of Education, Tsinghua University, Beijing 100084, China.
| | - Wei Huang
- Department of Chemistry and Key Laboratory of Organic Optoelectronics & Molecular Engineering of the Ministry of Education, Tsinghua University, Beijing 100084, China.
| | - David L Clark
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - W H Eugen Schwarz
- Department of Chemistry and Key Laboratory of Organic Optoelectronics & Molecular Engineering of the Ministry of Education, Tsinghua University, Beijing 100084, China. and Physical and Theoretical Chemistry, University of Siegen, 57068, Germany
| | - Jun Li
- Department of Chemistry and Key Laboratory of Organic Optoelectronics & Molecular Engineering of the Ministry of Education, Tsinghua University, Beijing 100084, China. and Environmental Molecular Science Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99352, USA
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21
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Beccia MR, Solari PL, Monfort M, Moulin C, Den Auwer C. Focus on speciation assessment in marine radiochemistry using X-ray absorption spectroscopy. NEW J CHEM 2018. [DOI: 10.1039/c7nj04862a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We review the state-of-the-art and recent advances in the determination of radionuclide speciation in seawater.
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Affiliation(s)
| | - Pier Lorenzo Solari
- Synchrotron SOLEIL L’Orme des Merisiers
- Saint-Aubin
- F-91192 Gif-sur-Yvette Cedex
- France
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22
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Abney CW, Mayes RT, Saito T, Dai S. Materials for the Recovery of Uranium from Seawater. Chem Rev 2017; 117:13935-14013. [DOI: 10.1021/acs.chemrev.7b00355] [Citation(s) in RCA: 428] [Impact Index Per Article: 61.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Carter W. Abney
- Chemical Sciences Division, Oak Ridge National Laboratory, One Bethel Valley Road, Oak Ridge, Tennessee 37831, United States
| | - Richard T. Mayes
- Chemical Sciences Division, Oak Ridge National Laboratory, One Bethel Valley Road, Oak Ridge, Tennessee 37831, United States
| | - Tomonori Saito
- Chemical Sciences Division, Oak Ridge National Laboratory, One Bethel Valley Road, Oak Ridge, Tennessee 37831, United States
| | - Sheng Dai
- Chemical Sciences Division, Oak Ridge National Laboratory, One Bethel Valley Road, Oak Ridge, Tennessee 37831, United States
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23
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Beccia MR, Matara-Aho M, Reeves B, Roques J, Solari PL, Monfort M, Moulin C, Den Auwer C. New insight into the ternary complexes of uranyl carbonate in seawater. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2017; 178-179:343-348. [PMID: 28947086 DOI: 10.1016/j.jenvrad.2017.08.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 08/02/2017] [Accepted: 08/12/2017] [Indexed: 06/07/2023]
Abstract
Uranium is naturally present in seawater at trace levels and may in some cases be present at higher concentrations, due to anthropogenic nuclear activities. Understanding uranium speciation in seawater is thus essential for predicting and controlling its behavior in this specific environmental compartment and consequently, its possible impact on living organisms. The carbonato calcic complex Ca2UO2(CO3)3 was previously identified as the main uranium species in natural seawater, together with CaUO2(CO3)32-. In this work, we further investigate the role of the alkaline earth cation in the structure of the ternary uranyl-carbonate complexes. For this purpose, artificial seawater, free of Mg2+ and Ca2+, using Sr2+ as a spectroscopic probe was prepared. Combining TRLIF and EXAFS spectroscopy, together with DFT and theoretical thermodynamic calculations, evidence for the presence of Sr alkaline earth counter ion in the complex structure can be asserted. Furthermore, data suggest that when Ca2+ is replaced by Sr2+, SrUO2(CO3)32- is the main complex in solution and it occurs with the presence of at least one monodentate carbonate in the uranyl coordination sphere.
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Affiliation(s)
- M R Beccia
- Université Côte d'Azur, CNRS, Institut de Chimie de Nice, UMR 7272, 06108 Nice, France.
| | - M Matara-Aho
- Université Côte d'Azur, CNRS, Institut de Chimie de Nice, UMR 7272, 06108 Nice, France; Laboratory of Radiochemistry, Department of Chemistry, University of Helsinki, FI, 00014, Finland
| | - B Reeves
- Université Côte d'Azur, CNRS, Institut de Chimie de Nice, UMR 7272, 06108 Nice, France
| | - J Roques
- Institut de Physique Nucléaire d'Orsay, Université Paris XI Orsay, UMR8608, 91405 Orsay, France
| | - P L Solari
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP 48, F-91192 Gif-sur-Yvette Cedex, France
| | - M Monfort
- CEA, DAM, DIF, F-91297 Arpajon, France
| | - C Moulin
- CEA, DAM, DIF, F-91297 Arpajon, France
| | - C Den Auwer
- Université Côte d'Azur, CNRS, Institut de Chimie de Nice, UMR 7272, 06108 Nice, France.
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Abergel RJ, de Jong WA, Deblonde GJP, Dau PD, Captain I, Eaton TM, Jian J, van Stipdonk MJ, Martens J, Berden G, Oomens J, Gibson JK. Cleaving Off Uranyl Oxygens through Chelation: A Mechanistic Study in the Gas Phase. Inorg Chem 2017; 56:12930-12937. [DOI: 10.1021/acs.inorgchem.7b01720] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Rebecca J. Abergel
- Chemical Sciences
Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Wibe A. de Jong
- Computational Research Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Gauthier J.-P. Deblonde
- Chemical Sciences
Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Phuong D. Dau
- Chemical Sciences
Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Ilya Captain
- Chemical Sciences
Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Teresa M. Eaton
- Chemical Sciences
Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Jiwen Jian
- Chemical Sciences
Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Michael J. van Stipdonk
- Department of Chemistry and Biochemistry, Duquesne University, Pittsburgh, Pennsylvania 15282, United States
| | - Jonathan Martens
- Radboud University, Institute for Molecules
and Materials, FELIX Laboratory, Toernooiveld 7c, 6525ED Nijmegen, The Netherlands
| | - Giel Berden
- Radboud University, Institute for Molecules
and Materials, FELIX Laboratory, Toernooiveld 7c, 6525ED Nijmegen, The Netherlands
| | - Jos Oomens
- Radboud University, Institute for Molecules
and Materials, FELIX Laboratory, Toernooiveld 7c, 6525ED Nijmegen, The Netherlands
- Van’t
Hoff Institute for Molecular Sciences, University of Amsterdam, Science
Park 904, 1098XH Amsterdam, The Netherlands
| | - John K. Gibson
- Chemical Sciences
Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
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Maloubier M, Michel H, Solari PL, Moisy P, Tribalat MA, Oberhaensli FR, Dechraoui Bottein MY, Thomas OP, Monfort M, Moulin C, Den Auwer C. Speciation of americium in seawater and accumulation in the marine sponge Aplysina cavernicola. Dalton Trans 2015; 44:20584-96. [DOI: 10.1039/c5dt02805a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The fate of radionuclides in the environment and especially in seawater is a cause of great concern for modern society and drives the need for experimental speciation studies.
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Affiliation(s)
- Melody Maloubier
- University of Nice Sophia Antipolis
- Nice Chemistry Institute UMR CNRS 7272
- Nice
- France
- CEA
| | - Hervé Michel
- University of Nice Sophia Antipolis
- Nice Chemistry Institute UMR CNRS 7272
- Nice
- France
| | | | - Philippe Moisy
- CEA
- Nuclear Energy Division
- RadioChemistry & Processes Department
- F-30207 Bagnols sur Cèze
- France
| | - Marie-Aude Tribalat
- University of Nice Sophia Antipolis
- Nice Chemistry Institute UMR CNRS 7272
- Nice
- France
| | | | | | - Olivier P. Thomas
- University of Nice Sophia Antipolis
- Nice Chemistry Institute UMR CNRS 7272
- Nice
- France
| | | | | | - Christophe Den Auwer
- University of Nice Sophia Antipolis
- Nice Chemistry Institute UMR CNRS 7272
- Nice
- France
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