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Yomogida T, Hashimoto T, Okumura T, Yamada S, Tatsuno H, Noda H, Hayakawa R, Okada S, Takatori S, Isobe T, Hiraki T, Sato T, Toyama Y, Ichinohe Y, Sekizawa O, Nitta K, Kurihara Y, Fukushima S, Uruga T, Kitatsuji Y, Takahashi Y. Application of transition-edge sensors for micro-X-ray fluorescence measurements and micro-X-ray absorption near edge structure spectroscopy: a case study of uranium speciation in biotite obtained from a uranium mine. Analyst 2024; 149:2932-2941. [PMID: 38590233 DOI: 10.1039/d4an00059e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/10/2024]
Abstract
In this study, we successfully applied a transition-edge sensor (TES) spectrometer as a detector for microbeam X-ray measurements from a synchrotron X-ray light source in the hard X-ray region to determine uranium (U) distribution at the micro-scale and its chemical species in biotite obtained from a U mine. It is difficult to separate the fluorescent X-ray of the U Lα1 line at 13.615 keV from that of the Rb Kα line at 13.395 keV in the X-ray fluorescence spectrum with an energy resolution of approximately 220 eV using a conventional silicon drift detector (SDD). Meanwhile, the fluorescent X-rays of U Lα1 and Rb Kα were fully separated by a TES with 50 eV energy resolution at an energy of around 13 keV. The successful peak separation by the TES led to an accurate mapping analysis of trace U in micro-X-ray fluorescence measurements and a decrease in the signal-to-background ratio in micro-X-ray absorption near edge structure spectroscopy. Thus, it could be a powerful tool for studying the U distribution and speciation in various environmental samples.
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Affiliation(s)
- Takumi Yomogida
- Nuclear Science and Engineering Center, Japan Atomic Energy Agency, Naka-gun, Ibaraki, 319-1195, Japan.
- Department of Earth and Planetary Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan.
| | - Tadashi Hashimoto
- Advanced Science Research Center (ASRC), Japan Atomic Energy Agency (JAEA), Naka-gun, Ibaraki, 319-1184, Japan
| | - Takuma Okumura
- Department of Chemistry, Tokyo Metropolitan University, Hachioji, Tokyo, 192-0397, Japan
| | - Shinya Yamada
- Department of Physics, Rikkyo University, Toshima-ku, Tokyo, 171-8501, Japan
| | - Hideyuki Tatsuno
- Department of Physics, Tokyo Metropolitan University, Hachioji, Tokyo, 192-0397, Japan
| | - Hirofumi Noda
- Department of Earth and Space Science, Osaka University, Toyonaka, Osaka, 560-0043, Japan
| | - Ryota Hayakawa
- International Center for Quantum-field Measurement Systems for Studies of the Universe and Particles (QUP), KEK, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - Shinji Okada
- Department of Mathematical and Physical Sciences, Chubu University, Kasugai, Aichi, 487-8501, Japan
| | - Sayuri Takatori
- Research Institute for Interdisciplinary Science, Okayama University, Okayama, Okayama, 700-8530, Japan
| | - Tadaaki Isobe
- RIKEN Nishina Center, RIKEN, Wako, Saitama, 351-0198, Japan
| | - Takahiro Hiraki
- Research Institute for Interdisciplinary Science, Okayama University, Okayama, Okayama, 700-8530, Japan
| | - Toshiki Sato
- Department of Physics, Meiji University, Kawasaki, Kanagawa, 214-8571, Japan
| | - Yuichi Toyama
- Engineering Science Laboratory, Chubu University, Kasugai, Aichi, 487-8501, Japan
| | - Yuto Ichinohe
- RIKEN Nishina Center, RIKEN, Wako, Saitama, 351-0198, Japan
| | - Oki Sekizawa
- Center for Synchrotron Radiation Research, Japan Synchrotron Radiation Research Institute (JASRI), Sayo, Hyogo, 679-5198, Japan
| | - Kiyofumi Nitta
- Center for Synchrotron Radiation Research, Japan Synchrotron Radiation Research Institute (JASRI), Sayo, Hyogo, 679-5198, Japan
| | - Yuichi Kurihara
- Nagaoka University of Technology, Nagaoka, Niigata, 940-2188, Japan
| | - Shigeru Fukushima
- Ningyo-toge Environmental Engineering Center, Japan Atomic Energy Agency, Tomata-gun, Okayama, 708-0601, Japan
| | - Tomoya Uruga
- Center for Synchrotron Radiation Research, Japan Synchrotron Radiation Research Institute (JASRI), Sayo, Hyogo, 679-5198, Japan
| | - Yoshihiro Kitatsuji
- Nuclear Science and Engineering Center, Japan Atomic Energy Agency, Naka-gun, Ibaraki, 319-1195, Japan.
| | - Yoshio Takahashi
- Department of Earth and Planetary Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan.
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Cheng W, Tang H, Yi Y, Nie X, Ding C. Mutual effects of Shewanella putrefaciens-montmorillonite and their impact on uranium immobilization. CHEMOSPHERE 2022; 303:135096. [PMID: 35618069 DOI: 10.1016/j.chemosphere.2022.135096] [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] [Received: 03/01/2022] [Revised: 05/06/2022] [Accepted: 05/22/2022] [Indexed: 06/15/2023]
Abstract
This study investigated the immobilization behavior of U(VI) by the mixture of Shewanella putrefaciens (S. putrefaciens) and montmorillonite with batch experiment. The relevant mechanisms were discussed based on the experimental results and characterizations. It was found that the immobilization of U(VI) by S. putrefaciens-montmorillonite was inhibited at pH < 7.0 and enhanced at pH > 7.0. The inhibition effect was due to the aggregation and coverage between S. putrefaciens and montmorillonite, whereas the association of microbial dissolvable organic matters (DOM) on montmorillonite could promote immobilization of U(VI). The evidences of X-photoelectron spectroscopy (XPS) and density functional theory (DFT) simulation confirmed that the carboxyl-, hydroxyl-, nitrogen-based DOM do have the ability to interacted with U(VI). This work highlights a comprehensive and overlook perspective to understand the immobilization behavior of U(VI) in environmental organo-minerals.
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Affiliation(s)
- Wencai Cheng
- Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory, Southwest University of Science and Technology, Mianyang, 621010, PR China; National Collaborative Innovation Center for Nuclear Waste and Environmental Safety, Southwest University of Science and Technology, Mianyang, 621010, PR China; School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang, 621010, PR China
| | - Huiping Tang
- Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory, Southwest University of Science and Technology, Mianyang, 621010, PR China; National Collaborative Innovation Center for Nuclear Waste and Environmental Safety, Southwest University of Science and Technology, Mianyang, 621010, PR China; School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang, 621010, PR China
| | - Yunpeng Yi
- Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory, Southwest University of Science and Technology, Mianyang, 621010, PR China; National Collaborative Innovation Center for Nuclear Waste and Environmental Safety, Southwest University of Science and Technology, Mianyang, 621010, PR China
| | - Xiaoqin Nie
- Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory, Southwest University of Science and Technology, Mianyang, 621010, PR China; National Collaborative Innovation Center for Nuclear Waste and Environmental Safety, Southwest University of Science and Technology, Mianyang, 621010, PR China; School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang, 621010, PR China
| | - Congcong Ding
- Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory, Southwest University of Science and Technology, Mianyang, 621010, PR China; National Collaborative Innovation Center for Nuclear Waste and Environmental Safety, Southwest University of Science and Technology, Mianyang, 621010, PR China.
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Pan D, Zhao X, Wang P, Li P, Li Y, Wu W, Wang Z, Fan Q. Insights into sorption speciation of uranium on phlogopite: Evidence from TRLFS and DFT calculation. JOURNAL OF HAZARDOUS MATERIALS 2022; 427:128164. [PMID: 34991008 DOI: 10.1016/j.jhazmat.2021.128164] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 12/14/2021] [Accepted: 12/24/2021] [Indexed: 06/14/2023]
Abstract
Knowledge of the sorption speciation of uranium at mineral/water interface is essential to construct reliable retention and migration models. In this work, the sorption speciation of U(VI) at the phlogopite/water interface was studied at trace concentrations by combining batch sorption, time-resolved luminescence spectroscopy, and theoretical calculation. Batch experiments showed that the sorption of U(VI) on phlogopite was strongly dependent on pH but weakly affected by ionic strength, implying that the inner-sphere surface complexation was mainly responsible for U(VI) sorption on phlogopite. The diverse luminescence spectral characteristics indicated the formation of multiple inner-sphere surface species at the phlogopite/water interface, whose abundances varied as a function of pH. A portion of U(VI) precipitated as uranyl oxyhydroxides such as metaschoepite and becquerelite at high pH. Density functional theory calculation revealed that the bidentate complex at the edge of phlogopite (≡AlO-MgO-UO2(H2O)3) was the most favorable sorption configuration for U(VI) at acidic condition. The increasing temperature enhanced the sorption of U(VI) on phlogopite without altering the sorption species, and such enhancement in U(VI) sorption was withdrawn once the temperature decreased. These findings are essential for understanding the immobilization mechanism of U(VI) in mica-rich granitic terrains at a molecular scale and building a reliable retention model.
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Affiliation(s)
- Duoqiang Pan
- Frontiers Science Center for Rare Isotopes, Lanzhou University, Lanzhou 730000, China; School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China.
| | - Xiaodong Zhao
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Peng Wang
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Ping Li
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Yuhong Li
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Wangsuo Wu
- Frontiers Science Center for Rare Isotopes, Lanzhou University, Lanzhou 730000, China
| | - Zheming Wang
- Pacific Northwest National Laboratory, Richland, WA 99352, United States
| | - Qiaohui Fan
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
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Luo D, Geng R, Zhang Y, Li P, Liang J, Fan Q, Qiang S. Interaction behaviors of Cr(VI) at biotite-water interface in the presence of HA: Batch, XRD and XPS investigations. CHEMOSPHERE 2022; 293:133585. [PMID: 35026197 DOI: 10.1016/j.chemosphere.2022.133585] [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] [Received: 08/13/2021] [Revised: 12/17/2021] [Accepted: 01/09/2022] [Indexed: 06/14/2023]
Abstract
The interaction behaviors of heavy metals and micaceous minerals are extremely important to understand the environmental behaviors of heavy metals. In this work, the interaction behaviors of Cr(VI) and biotite in the presence and absence of HA were studied combining batch and spectroscopic approaches. Batch experiments showed that biotite had the ability to remove Cr(VI) from the water and the removal markedly increased with decreasing pH. However, sorption of total Cr onto biotite increased with increasing pH (2.0-4.0), whilst quickly decreased above pH ∼ 4.0. It was worth noting that redox process of Cr(VI) to Cr(III), caused by structural Fe(II) on biotite, was another important factor for the high removal of Cr(VI) in a pH range of 2.0-4.0. Ionic strength also influenced Cr(VI) removal that Cr(VI) removal became higher with increasing ion strength. The presence of HA did not show obvious macroscopic effect on Cr(VI) removal, however, HA could cover biotite surface, and promote the sorption of total Cr onto biotite and attenuate the reduction effect caused by Fe(II) on biotite. Spectroscopic approaches, like FT-IR, XRD and XPS further confirmed the existence of Cr(III) on biotite interacting with Cr(VI) and the reduction of Cr(VI) to Cr(III) was drove by the Fe(II) dissolving from biotite to Fe(III). Further, sorption effect and reduction effect competitively contributed to the Cr(VI) removal by biotite, and reduction effect played a more important role at lower pH.
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Affiliation(s)
- Dongxia Luo
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China; Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China; Gansu Analysis and Research Center, Lanzhou, 730000, China
| | - Rongyue Geng
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Youxian Zhang
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China.
| | - Ping Li
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Jianjun Liang
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Qiaohui Fan
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Shirong Qiang
- Key Laboratory of Preclinical Study of for New Drugs of Gansu Province, Institute of Physiology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, 730000, China.
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Wang J, Qiang S, Wang Y, Wu W, Li P, Qin H, Fan Q. Adsorption of U(VI) on the natural soil around a very low-level waste repository. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2021; 233:106619. [PMID: 33894498 DOI: 10.1016/j.jenvrad.2021.106619] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 03/31/2021] [Accepted: 04/07/2021] [Indexed: 06/12/2023]
Abstract
The behaviors of U(VI) in environmental media around radioactive waste disposal site are important for safety assessment of geological repositories. However, the estimation of environmental behaviors of U(VI) in natural media was insufficient. This work aimed to determine the adsorption of U(VI) on natural soil surrounding a candidate very low-level radioactive waste (VLLW) disposal site in southwest China. Results showed that the adsorption process of U(VI) on soils could be well supported by pseudo-second-order kinetic and Freundlich model. The adsorption of U(VI) was pH-dependent but temperature-independent. High ionic strength (NaCl) strongly affected the adsorption process at low pH (2.0-5.5). CO32- remarkably inhibited the U(VI) adsorption, while the adsorption of U(VI) was promoted by PO43- and SO42-. Naturally occurred soil organic matters (SOMs) showed high affinity for U(VI), while the presence of additional humic acid (HA) strongly inhibited U(VI) adsorption. The occurrence of ferrous iron could result in the reduction of U(VI) at low pH values (pH < 4), leading to the promotion of immobilization of U(VI). These findings would provide some guidance for the safety assessments of the VLLW disposal as well as the remediation of contaminated soil.
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Affiliation(s)
- Jingjing Wang
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou, 730000, China; Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China.
| | - Shirong Qiang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Institute of Physiology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Yun Wang
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Wangsuo Wu
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou, 730000, China.
| | - Ping Li
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China.
| | - Haibo Qin
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China.
| | - Qiaohui Fan
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China; Key Laboratory of Petroleum Resources, Gansu Province, Lanzhou, 730000, China.
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Zhou W, Shi Y, Li Y, Xian D, Wang J, Liu C. Adsorption of Eu(III) at rutile/water interface: Batch, spectroscopic and modelling studies. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125811] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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