Enhanced sorption of radionuclides by defect-rich graphene oxide

N Boulanger, AS Kuzenkova, A Iakunkov… - … applied materials & …, 2020 - ACS Publications
Extremely defect graphene oxide (dGO) is proposed as an advanced sorbent for treatment of
radioactive waste and contaminated natural waters. dGO prepared using a modified …

Analysis of technetium immobilization and its molecular retention mechanisms by Fe (II)-Al (III)-Cl layered double hydroxide

N Mayordomo, DM Rodríguez, A Rossberg… - Chemical Engineering …, 2021 - Elsevier
Layered double hydroxides (LDH) play a decisive role in regulating the mobility of
contaminants in natural and engineered environments. In this work, the retention of an Fe (II) …

Fe (II) induced reduction of incorporated U (VI) to U (V) in goethite

O Stagg, K Morris, A Lam, A Navrotsky… - Environmental …, 2021 - ACS Publications
Over 60 years of nuclear activities have resulted in a global legacy of radioactive wastes,
with uranium considered a key radionuclide in both disposal and contaminated land …

Core Excitations of Uranyl in Cs2UO2Cl4 from Relativistic Embedded Damped Response Time-Dependent Density Functional Theory Calculations

WA Misael, A Severo Pereira Gomes - Inorganic Chemistry, 2023 - ACS Publications
X-ray spectroscopies, by their high selectivity and sensitivity to the chemical environment
around the atoms probed, provide significant insights into the electronic structures of …

Insight into the structure–property relationship of UO 2 nanoparticles

E Gerber, AY Romanchuk, S Weiss… - Inorganic Chemistry …, 2021 - pubs.rsc.org
Highly crystalline UO2 nanoparticles (NPs) with sizes of 2–3 nm were produced by fast
chemical deposition of uranium (IV) under reducing conditions at pH 8–11. The particles …

[PDF][PDF] Implementation of cryogenic tender X-ray HR-XANES spectroscopy at the ACT station of the CAT-ACT beamline at the KIT Light Source

B Schacherl, T Prüssmann, K Dardenne… - Journal of …, 2022 - journals.iucr.org
The ACT experimental station of the CAT-ACT wiggler beamline at the Karlsruhe Institute of
Technology (KIT) Light Source is dedicated to the investigation of radionuclide materials …

Sulfidation of magnetite with incorporated uranium

LT Townsend, K Morris, R Harrison, B Schacherl… - Chemosphere, 2021 - Elsevier
Uranium (U) is a radionuclide of key environmental interest due its abundance by mass
within radioactive waste and presence in contaminated land scenarios. Ubiquitously present …

[HTML][HTML] Uranium remobilisation in anoxic deep rock-groundwater system in response to late Quaternary climate changes–Results from Forsmark, Sweden

J Suksi, EL Tullborg, I Pidchenko, L Krall, B Sandström… - Chemical …, 2021 - Elsevier
Unusually high uranium (U) concentrations (up to 175 μg/L) have been measured in
groundwater at depths between 400 and 650 m at the Forsmark site, eastern Sweden. Since …

Fission product speciation across a UO2 spent nuclear fuel

V Klosek, M Hunault, S Schlutig, W Tomczak… - Journal of Nuclear …, 2023 - Elsevier
This article presents the preparation, the realization and the results of the first X-ray
absorption spectroscopy analysis of a bulky irradiated UO 2 sample. The studied sample …

Potential behaviour of (Fe, Y) sites due to self-irradiation, as resolved through XAFS of natural metamict gadolinite

D Lahiri, P Sengupta, P Rajput, SN Jha, N Garg - Ceramics International, 2023 - Elsevier
Vitrified high level nuclear waste matrices with Fe as network modifier often get associated
with lanthanides produced due to fission reactions within irradiated nuclear fuel. During its …