Review
Environmental Sciences
Wenbo You, Wanting Peng, Zhichao Tian, Maosheng Zheng
Summary: This review systematically summarizes the remediation of U(VI) contamination using microbial reduction, including mechanisms and influencing factors. In situ remediation is shown to be more effective for large-scale degradation of uranium contaminants, but reduction products can be reoxidized when exposed to oxygen and nitrate, compromising the remediation effects.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Chemistry, Multidisciplinary
Pingping Wang, Faqin Dong, Dengliang He, Shuxin Liu, Ning Chen, Tingting Huo
Summary: The study successfully removed U(vi) from aqueous solution and recovered uranium using a novel photoelectrochemical cell. Citric acid and oxalic acid act as hole scavengers, facilitating the photocatalytic reduction of U(vi) and increasing uranium removal efficiency.
Article
Engineering, Environmental
Kyle J. Chardi, Anshuman Satpathy, Walter D. C. Schenkeveld, Naresh Kumar, Vincent Noel, Stephan M. Kraemer, Daniel E. Giammar
Summary: Organic ligands have the potential to enhance the dissolution of crystalline uraninite and noncrystalline U(IV), leading to the mobilization of U forms. The extent of U mobilization is greater for noncrystalline U(IV) than for crystalline uraninite. This study suggests that organic ligands present in the environment can undermine the stability of immobilized U(IV) sources by mobilizing U forms to hazardous levels under anoxic conditions.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Spectroscopy
Jean-Baptiste Sirven, Stephanie Szenknect, Evelyne Vors, Eddie Anzalone, Sofian Benarib, Papa-Masserigne Sarr, Pascal E. Reiller, Adel Mesbah, Nicolas Dacheux, Thomas Vercouter, Michael Descostes
Summary: This study evaluated the potential of time-resolved laser-induced fluorescence spectroscopy (TRLFS) combined with chemometric methods for fast identification of U(VI)-bearing minerals in a mining context. The results showed that TRLFS can be an effective decision-making tool for environmental investigations or geological prospecting, considering the large diversity of uranium-bearing mineral phases and their low concentration in environmental samples.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Review
Engineering, Environmental
Li Chen, Jinrong Liu, Weixiong Zhang, Jiqiang Zhou, Danqi Luo, Zimin Li
Summary: This review focuses on the sources, geochemical behavior, uptake, toxicity, detoxification, and bioremediation strategies of Uranium in soil-plant systems. It highlights mining activities as the main source of soil Uranium contamination, with Uranium mainly accumulating in plant roots but being translocated to aerial parts in some species. Plants tolerate Uranium toxicity through various defense mechanisms.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Yachao Xu, Hongsen Zhang, Qi Liu, Jingyuan Liu, Rongrong Chen, Jing Yu, Jiahui Zhu, Rumin Li, Jun Wang
Summary: The TiO2/CPAN-AO catalyst prepared in this paper showed excellent selectivity in reducing uranium and has great potential in large-scale uranium extraction from natural seawater.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Margaux Molinas, Radmila Faizova, Ashley Brown, Jurij Galanzew, Bianca Schacherl, Barbora Bartova, Karin L. Meibom, Tonya Vitova, Marinella Mazzanti, Rizlan Bernier-Latmani
Summary: Metal-reducing microorganisms like Shewanella oneidensis MR-1 have the ability to reduce highly soluble hexavalent uranyl (U(VI)) to less mobile tetravalent uranium (U(IV)). This study shows that U(VI)-dpaea can be reduced to U(V)-dpaea and then to U(IV) by S. oneidensis MR-1. The potential for biological reduction of U(V) bound to a stabilizing ligand is established, warranting further investigation in environmental systems.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Geochemistry & Geophysics
Min Zhang, Richen Zhong, Chang Yu, Hao Cui
Summary: The solubility of uranium in metamorphic fluids is low, and U(IV) is the dominant form of dissolved uranium. This finding is consistent with geological observations. Furthermore, in oxidized pelite-buffered fluids at low temperatures, the solubility of U(VI) is relatively high, indicating that uranium can be mobilized by low-temperature geofluids.
Article
Materials Science, Multidisciplinary
Chris Foster, Samuel Shaw, Thomas S. Neill, Nick Bryan, Nick Sherriff, Scott Harrison, Louise S. Natrajan, Bruce Rigby, Katherine Morris
Summary: The decommissioning of legacy spent fuel storage facilities at Sellafield nuclear facility in the UK requires the retrieval of radioactive sludge resulting from Magnox fuel corrosion. The interactions between colloidal hydrotalcite and different forms of nanoparticulate U(IV) were investigated using a multi-technique approach. The study highlights the potential for U(IV) nanoparticles to form a new type of colloid-colloid interaction with hydrotalcite, especially when silica is present.
JOURNAL OF NUCLEAR MATERIALS
(2023)
Article
Engineering, Environmental
Olwen Stagg, Katherine Morris, Luke Thomas Townsend, Kristina O. Kvashnina, Michael L. Baker, Ryan L. Dempsey, Liam Abrahamsen-Mills, Samuel Shaw
Summary: Over 60 years of nuclear activity have led to a global issue of contaminated land and radioactive waste, with uranium being a significant component. This study demonstrates that iron (oxyhydr)oxides can act as a long-term barrier to uranium migration in the environment. Despite a transient release of uranium ions during sulfidation, uranium overall remains in the solid phase. On reoxidation, uranium associates with iron (oxyhydr)oxide, either as adsorbed uranyl or incorporated uranium species. These findings support the concept of iron (oxyhydr)oxides acting as a barrier to uranium migration even under fluctuating redox conditions.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Xiaomeng Li, Yannick Rosello, Yang-Rong Yao, Jiaxin Zhuang, Xingxing Zhang, Antonio Rodriguez-Fortea, Coen de Graaf, Luis Echegoyen, Josep M. Poblet, Ning Chen
Summary: For the first time, a actinide nitride clusterfullerene, U2N@I-h(7)-C-80, is synthesized, which shows a rare unsymmetrical structure with two U=N bonds of uneven bond distances. The study also reveals that U=X=U clusters (X = C, N and O) exhibit unique bonding patterns, different from lanthanide analogs, and are of fundamental significance in understanding actinide bonding motifs.
Article
Environmental Sciences
Muqing Qiu, Zhixin Liu, Shuqin Wang, Baowei Hu
Summary: The study demonstrated that the ZIF-8/g-C3N4 photocatalyst showed high efficiency in the photoreduction of U(VI) and maintained stability under different water chemistry conditions. The role of H2O2 radicals and photo-generated electrons in U(VI) photoreduction was highlighted through quenching experiments.
ENVIRONMENTAL RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Luisa Koehler, Michael Patzschke, Stephen Bauters, Tonya Vitova, Sergei M. Butorin, Kristina O. Kvashnina, Moritz Schmidt, Thorsten Stumpf, Juliane Maerz
Summary: This study investigates the structure and properties of the reaction products of N-heterocyclic carbene ligand and lithium bis(trimethylsilyl)amide with UCl4 through experiments and theoretical calculations. It was found that silylamido ligand mediates an inverse trans influence (ITI). This study is important for understanding the manifestation of ITI in different metal oxidation states and its similarity to transition metals.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Engineering, Environmental
Yujing Zhang, Xiaoqin Nie, Faqin Dong, Ning Pan, Congcong Ding, Chang Liu, Junling Wang, Wencai Cheng, Mingxue Liu, Huichao He, Shiyong Sun, Xue Xia
Summary: A novel polyamine-modified polyacrylonitrile-based fiber (PANPA) was synthesized through hydrothermal method for effective removal of U(VI) from high fluorine uranium-containing wastewater. The research showed that PANPA selectively removes U(VI) and exhibits high adsorption capacity and removal efficiency. Furthermore, PANPA is not affected by high concentration of F- and is suitable for removing U(VI) from real wastewater produced during the fabrication of nuclear fuel elements.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Novan A. G. Gray, Jeffrey S. Price, David J. H. Emslie
Summary: Rigid thioether- and selenoether-containing pincer proligands were synthesized and reacted to form corresponding potassium salts, which were then used to obtain uranium thioether and selenoether complexes. Computational studies showed increasing covalency in the U-ER2 bonding from O to S to Se.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Geochemistry & Geophysics
Elizabeth Cottrell, Antonio Lanzirotti, Bjorn Mysen, Suzanne Birner, Katherine A. Kelley, Roman Botcharnikov, Fred A. Davis, Matthew Newville
AMERICAN MINERALOGIST
(2018)
Article
Environmental Sciences
David S. Pal, Rajan Tripathee, Matthew C. Reid, Karina V. R. Schafer, Peter R. Jaffe
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2018)
Article
Environmental Sciences
Vahid Razaviarani, Melany Ruiz-Uriguen, Peter R. Jaffe
WASTE AND BIOMASS VALORIZATION
(2019)
Article
Environmental Sciences
Ayla Bilgin, Peter R. Jaffe
WASTE AND BIOMASS VALORIZATION
(2019)
Article
Environmental Sciences
Jinyi Ge, Shan Huang, Il Han, Peter R. Jaffe
ENVIRONMENTAL POLLUTION
(2019)
Article
Environmental Sciences
Weitao Shuai, Peter R. Jaffe
SCIENCE OF THE TOTAL ENVIRONMENT
(2019)
Article
Environmental Sciences
Vahid Razaviarani, Juan A. Zazo, Jose A. Casas, Peter R. Jaffe
Article
Engineering, Environmental
Shan Huang, Peter R. Jaffe
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2019)
Article
Agricultural Engineering
Shan Huang, Zhaoming Zheng, Qingqing Wei, Il Han, Peter R. Jaffe
BIORESOURCE TECHNOLOGY
(2019)
Article
Chemistry, Physical
Juan A. Zazo, P. Garcia-Munoz, G. Pliego, Jefferson E. Silveira, P. Jaffe, Jose A. Casas
APPLIED CATALYSIS B-ENVIRONMENTAL
(2020)
Review
Environmental Sciences
Matthew W. Sima, Peter R. Jaffe
Summary: This review summarizes recent developments in PFAS modeling for various chemical, physical, and biological processes, including sorption, volatilization, degradation, bioaccumulation, and transport. It is found that PFAS transport in the soil-water environment is influenced by various physical, chemical, and biological processes, highlighting the importance of accurate model parameters to predict the fate and remediation efficiency of PFAS.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Shan Huang, Arianna Sherman, Chen Chen, Peter R. Jaffe
Summary: The study found that storm disturbances can have significant impacts on the nitrogen and iron cycles and associated microbial communities in estuary systems. Increases in nutrient concentrations immediately after storm resulted in extensive changes in the microbial community. Over time, both the chemical profile and microbial community components returned to baseline conditions.
ENVIRONMENTAL POLLUTION
(2021)
Article
Engineering, Environmental
Shan Huang, Matthew Sima, Ying Long, Courtney Messenger, Peter R. Jaffe
Summary: The study shows that anaerobic incubation of PFAS contaminated biosolids, after augmentation with Fe(III) and Acidimicrobium sp. Strain A6 can result in PFAS defluorination, reducing the concentration of PFOA.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Melany Ruiz-Uriguen, Weitao Shuai, Shan Huang, Peter R. Jaffe
Summary: This study found that Acidimicrobiaceae sp. strain A6 can biodegrade PFAS by utilizing the anode in microbial electrolysis cells (MECs), which lays the foundation for further research on A6-based PFAS bioremediation in water treatment.
Article
Engineering, Environmental
Melany Ruiz-Uriguen, Daniel Steingart, Peter R. Jaffe
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2019)