Journal of Radioanalytical and Nuclear Chemistry最新文献_第10页

The fate of selected uranium compounds exposed to the environment 选定的铀化合物暴露在环境中的命运

IF 1.6 3区化学

Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2025-07-23 DOI: 10.1007/s10967-025-10261-5

Dima Libman, Eyal Elish, Shmuel Samuha, Eyal Grinberg, Dvir Fadel, Nir Ashrov, Maor Assulin, Noa Fruchter, Elad Edri, Anna-Eden Kossoy, Itzhak Sedgi, Itzhak Orion

{"title":"The fate of selected uranium compounds exposed to the environment","authors":"Dima Libman, Eyal Elish, Shmuel Samuha, Eyal Grinberg, Dvir Fadel, Nir Ashrov, Maor Assulin, Noa Fruchter, Elad Edri, Anna-Eden Kossoy, Itzhak Sedgi, Itzhak Orion","doi":"10.1007/s10967-025-10261-5","DOIUrl":"10.1007/s10967-025-10261-5","url":null,"abstract":"<div><p>The science of nuclear forensics is essential for the global effort against illicit trafficking of nuclear (or radiological) materials. One of the most common interdicted materials is uranium. Hence, combating the diverting of uranium compounds from their legal uses, such as the nuclear fuel cycle, is critical. This work describes a set of measurements to establish relations between the time elapsed since the exposure of UO<sub>2</sub>F<sub>2</sub>, U<sub>3</sub>O<sub>8</sub> and UO<sub>3</sub>, to different environmental conditions. It was found that these uranium compounds react differently with humidity, as a function of time, to present measurable parameters, used to estimate how long they were exposed to the specific conditions. Ion beam depth profiling utilized by ToF-SIMS on one UO<sub>2</sub>F<sub>2</sub> particle as a function of exposure time, yielded significant related data. Yet, a second set of depth profile measurements on a set of 10 UO<sub>2</sub>F<sub>2</sub> particles, followed by statistical analysis, did not find significant differences between the exposure periods.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"334 8","pages":"5305 - 5328"},"PeriodicalIF":1.6,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145090640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Natural radioactivity, spatial distribution, and hazard assessment in soils and beach sands near Maanshan Nuclear Power Plant, Taiwan 马鞍山核电厂附近土壤及沙滩砂天然放射性、空间分布及危害评价

IF 1.6 3区化学

Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2025-07-23 DOI: 10.1007/s10967-025-10231-x

Yi-Lung Yeh, Ting-Chien Chen, Chih-Chung Lin, Zhi-Mou Chen, Wei-Hsiang Huang

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Development of a glove box-adaptable continuous precipitation and sedimentation system for plutonium reconversion: experimental evaluation of precipitator performance 手套箱适用于钚再转化的连续沉淀沉淀系统的研制：沉淀器性能的实验评价

IF 1.6 3区化学

Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2025-07-23 DOI: 10.1007/s10967-025-10258-0

P. Vishnu Anand, Pankaj, Saroj K. Panda, Amit Kumar, Satyabrata Mishra, J. Gnanasoundari, R. Rajeev, N. Desigan, K. A. Venkatesan, A. W. Patwardhan

{"title":"Development of a glove box-adaptable continuous precipitation and sedimentation system for plutonium reconversion: experimental evaluation of precipitator performance","authors":"P. Vishnu Anand,  Pankaj, Saroj K. Panda, Amit Kumar, Satyabrata Mishra, J. Gnanasoundari, R. Rajeev, N. Desigan, K. A. Venkatesan, A. W. Patwardhan","doi":"10.1007/s10967-025-10258-0","DOIUrl":"10.1007/s10967-025-10258-0","url":null,"abstract":"<div><p>A glove box-adaptable continuous precipitation and sedimentation system, comprising a stirred-tank precipitator and a thickener-clarifier, was developed for the plutonium(IV) oxalate process. This article reports the design aspects of the system and the experimental evaluation of the precipitator using a non-radioactive surrogate, cerium(III). Experimental results revealed the interdependence of impeller speed and residence time in controlling particle size and achieving steady-state operation. Particle sizes of 110–120 µm were obtained at 1000 rpm for 20 min residence time, while 86–94 µm was achieved at 750 rpm for 5 min. Conversion efficiency remained above 98% regardless of the dynamic state of the system. The study provided key insights for the experimental evaluation of the complete system.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"334 8","pages":"5371 - 5388"},"PeriodicalIF":1.6,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10967-025-10258-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145090639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Characterization and uranium adsorption properties of ternary composite adsorbent formed by entrapping natural and synthetic X-type zeolite with soluble sulpholignin in polyacrylamide hydrogel: experimental and theoretical approach 水溶性硫木质素包埋天然和合成x型沸石在聚丙烯酰胺水凝胶中形成的三元复合吸附剂的表征和对铀的吸附性能：实验和理论方法

IF 1.6 3区化学

Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2025-07-15 DOI: 10.1007/s10967-025-10241-9

Yağmur Bütün, Selçuk Şimşek, Nazmi Otlu

{"title":"Characterization and uranium adsorption properties of ternary composite adsorbent formed by entrapping natural and synthetic X-type zeolite with soluble sulpholignin in polyacrylamide hydrogel: experimental and theoretical approach","authors":"Yağmur Bütün, Selçuk Şimşek, Nazmi Otlu","doi":"10.1007/s10967-025-10241-9","DOIUrl":"10.1007/s10967-025-10241-9","url":null,"abstract":"<div><p>In this study, the adsorption properties of the ternary composite structure formed by entrapment of zeolite-lignin hybrid material in polyacrylamide, an inert polymer, were investigated for the removal of uranium from aqueous solution. The characterization of the composite material was investigated by SEM, BET, XRD, and FTIR analyses. The adsorption results showed that the composite adsorbed maximum at the natural pH of uranium in the range of 4–5. Adsorption capacity was calculated from the Langmuir model and found to be 0.174 mol kg<sup>−1</sup> for NZ-L and 0.307 mol kg<sup>−1</sup> for ZX-L, respectively. The adsorption kinetics were evaluated with four different models, and it was concluded that the Elovich model was the best-fitting model. It is concluded that the enthalpy of adsorption is positive for both composites, the entropy is increasing, and the free enthalpy value is negative, that is, the process is spontaneous. Computer-based calculations were conducted to analyses the adsorption mechanism and interaction of the composites with uranium, providing a detailed explanation of the process. It has been shown that these two composites of zeolite and lignin, synthesized for the first time, are good adsorbents for both the recovery and removal of uranium.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"334 7","pages":"5051 - 5067"},"PeriodicalIF":1.6,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144880991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Coal fly ash as raw materials for stable solidification of radioactive cesium via microwave sintering: mechanism and chemical durability 以粉煤灰为原料微波烧结稳定固化放射性铯：机理与化学耐久性

IF 1.6 3区化学

Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2025-07-15 DOI: 10.1007/s10967-025-10238-4

Yuzhen Mai, Jie Chen, Fuliang Jiang, Junfeng Zhang, Yupeng Xie

{"title":"Coal fly ash as raw materials for stable solidification of radioactive cesium via microwave sintering: mechanism and chemical durability","authors":"Yuzhen Mai, Jie Chen, Fuliang Jiang, Junfeng Zhang, Yupeng Xie","doi":"10.1007/s10967-025-10238-4","DOIUrl":"10.1007/s10967-025-10238-4","url":null,"abstract":"<div><p>Radioactive cesium represents a substantial risk to both human health and environmental safety due to its persistent and hazardous nature. Simultaneously, large quantities of coal fly ash (CFA) are produced annually without sufficient resource utilization. In this study, a combination of microwave sintering technology and CFA was utilized to fabricate pollucite [CsAlSi<sub>2</sub>O<sub>6</sub>] ceramic designed to immobilize radioactive cesium. The CsAlSi<sub>2</sub>O<sub>6</sub> ceramic derive from CFA with > 98% cesium retention was achieved via microwave sintering at 850 °C for 30 min, which was ~ 300 °C lower and ~ 11% cesium retention rate higher that those of reported Cs-bearing hollandite. The influence of Cs<sub>2</sub>CO<sub>3</sub> content and sintering temperature on the phase evolution of the sintered samples were systematically examined. The chemical durability of the sintered forms was further assessed. The results indicated that the Cs(I) elements were uniformly distributed within the sintered matrix. Furthermore, the maximum solid solubility of Cs<sub>2</sub>CO<sub>3</sub> in the sintered forms was found to be 39 wt% at 850 °C. Notably, the solidified samples exhibited exceptional chemical durability, with normalized leaching rate of Cs<sup>+</sup> ions (LR<sub><i>Cs</i></sub>) maintaining consistently low (~ 1.0 × 10<sup>–6</sup> g m<sup>−2</sup> d<sup>−1</sup>) after 42 days. This study provides a valuable reference for the potential resource utilization of CFA in the stable solidification of radioactive cesium via microwave sintering, offering a promising strategy for future application.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"334 7","pages":"4809 - 4820"},"PeriodicalIF":1.6,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144880990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Radioactive, environmental investigation and mineral chemistry aspects of Niobium–Yttrium–Fluorine (NYF) Pegmatites bearing rare metals mineralization 含稀有金属矿化铌钇氟伟晶岩的放射性、环境调查和矿物化学方面

IF 1.6 3区化学

Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2025-07-15 DOI: 10.1007/s10967-025-10235-7

Ahmed E. Abdel Gawad, Elena G. Panova, Mohamed M. Ghoneim, Turki Kh. Faraj, Mohamed Y. Hanfi

{"title":"Radioactive, environmental investigation and mineral chemistry aspects of Niobium–Yttrium–Fluorine (NYF) Pegmatites bearing rare metals mineralization","authors":"Ahmed E. Abdel Gawad, Elena G. Panova, Mohamed M. Ghoneim, Turki Kh. Faraj, Mohamed Y. Hanfi","doi":"10.1007/s10967-025-10235-7","DOIUrl":"10.1007/s10967-025-10235-7","url":null,"abstract":"<div><p>The Niobium–Yttrium–Fluorine (NYF) pegmatites exhibit mineralization (i.e., columbite, xenotime, and fluorite) accompanied by elevated radioactivity from thorite, monazite, and zircon. Zircon contains up to 5.48 wt% HREE₂O₃, featuring Y and Th substitution for Zr. Ferro-columbite is distinguished by the predominance of Fe<sub>2</sub>O<sub>3</sub> over MnO, with averages Fe<sub>2</sub>O<sub>3</sub>/MnO ratio of 22.5 compared to 0.97 wt%. REE mineralization is comprised of fluorocarbonates/fluorides (synchysite, bastnäsite, fluorite) and phosphates (monazite, xenotime). Xenotime is HREE-enriched (21.2 wt% Gd<sub>2</sub>O<sub>3</sub>-Lu<sub>2</sub>O<sub>3</sub>), while Ce-dominated LREE occur in synchysite (23.94 wt%), bastnäsite (39.35 wt%), and monazite (32.83 wt%). Radiological analyses reveal elevated levels of (<sup>238</sup>U: 158 Bq·kg<sup>−1</sup>), (<sup>232</sup>Th: 196 Bq·kg<sup>−1</sup>), and (<sup>40</sup>K: 1521 Bq·kg<sup>−1</sup>), which exceed worldwide averages. The range of absorbed dose rates (D<sub>air</sub>) is from 150 to 743 nGy·h<sup>−1</sup>, with an average radium equivalent (Ra<sub>eq</sub>) of 555 Bq·kg<sup>−1</sup> (326–1680). The elevated levels of these radionuclides, indicative of significant radioactive concerns, underscore the imperative for comprehensive mineralogical and environmental characterization to mitigate ecological and health risks.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"334 7","pages":"4633 - 4647"},"PeriodicalIF":1.6,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144880993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Preparation and biodistribution of [131I]iodoelmalienoside a, a saponin-based adjuvant, in mice 皂苷类佐剂[131I]碘elmalieo苷a的制备及其在小鼠体内的生物分布

IF 1.6 3区化学

Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2025-07-15 DOI: 10.1007/s10967-025-10254-4

Derya Özel, Nazli Boke Sarikahya, Ayça Tunçel, Ayse Nalbantsoy, Fatma Yurt

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Comparative study on sugars for high-dose measurements using diffuse reflectance spectrometry 漫反射光谱法测定高剂量糖的比较研究

IF 1.6 3区化学

Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2025-07-15 DOI: 10.1007/s10967-025-10255-3

S. H. Shinde, Sandip Mondal, Sneha Chandrasekhar, Probal Chaudhury

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How much astatine is existing in nature? 自然界中存在多少砹？

IF 1.6 3区化学

Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2025-07-12 DOI: 10.1007/s10967-025-10250-8

Long Qiu, Yadong Wang, Ruitong Hou, Wenliang Li, Jiali Liao, Yuanyou Yang, Ning Liu, Feize Li

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Surface decontamination of radioactive cesium with hydrogel coating based on iron-based Prussian blue analogues 基于铁基普鲁士蓝类似物的水凝胶涂层对放射性铯的表面净化

IF 1.6 3区化学

Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2025-07-11 DOI: 10.1007/s10967-025-10207-x

Man Yang, Yi Wang, Xin Gao, Chuanyi Ma, Zhanguo Li, Xiaoyan Lin

{"title":"Surface decontamination of radioactive cesium with hydrogel coating based on iron-based Prussian blue analogues","authors":"Man Yang, Yi Wang, Xin Gao, Chuanyi Ma, Zhanguo Li, Xiaoyan Lin","doi":"10.1007/s10967-025-10207-x","DOIUrl":"10.1007/s10967-025-10207-x","url":null,"abstract":"<div><p>In this study, a series of iron-based Prussian Blue Analogues (PBAs) were synthesised using <sup>137</sup>Cs as the model radioactive contaminant. The influence of various nitrogen-ligand metal species on the cesium adsorption performance was systematically examined through controlled experiments. Subsequently, an innovative composite hydrogel was engineered via a single-step polymerisation methodology, integrating guar gum (GG), borax, glycerol, and optimised PBA adsorbents. This approach capitalised on synergistic interactions between borate crosslinking, hydrogen bonding networks, and cesium-selective coordination sites, yielding a mechanically robust hydrogel with exceptional structural integrity and decontamination capabilities, while maintaining rapid manufacturing potential. The hydrogel exhibited unprecedented efficiency in removing cesium contaminants from heterogeneous surfaces, achieving removal efficiencies of 99.64% (glass), 99.50% (stainless steel), 99.62% (rubber), 99.27% (lacquered board), and 88.37% (cement), thereby demonstrating consistent performance across diverse substrate chemistries and surface topographies. Comprehensive mechanistic analysis revealed the dual functionality of the hydrogel coating: physical entrapment through viscoelastic adhesion and chemoselective ion capture via PBA coordination. These findings provide critical insights into surface-bound radionuclide remediation strategies, positioning this technology as a transformative solution for practical radioactive decommissioning operations and environmental remediation initiatives.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"334 7","pages":"4977 - 4989"},"PeriodicalIF":1.6,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144880919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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