Interlink between solubility, structure, surface and thermodynamics in the ThO2(s, hyd)–H2O(l) system

Autor: Christian Kiefer, Thomas Neill, Nese Cevirim-Papaioannou, Dieter Schild, Xavier Gaona, Tonya Vitova, Kathy Dardenne, Jörg Rothe, Marcus Altmaier, Horst Geckeis

Publikováno v: Frontiers in Chemistry, Vol 10 (2022)

The impact of temperature on a freshly precipitated ThO2(am, hyd) solid phase was investigated using a combination of undersaturation solubility experiments and a multi-method approach for the characterization of the solid phase. XRD and EXAFS confir

Externí odkaz: https://doaj.org/article/9b7a848834d5432394ee6d310bb938a9

Adsorption of Strontium onto Synthetic Iron(III) Oxide up to High Ionic Strength Systems

Autor: David García, Johannes Lützenkirchen, Maximilien Huguenel, Léa Calmels, Vladimir Petrov, Nicolas Finck, Dieter Schild

Publikováno v: Minerals, Vol 11, Iss 10, p 1093 (2021)

In this work, the adsorption behavior of Sr onto a synthetic iron(III) oxide (hematite with traces of goethite) has been studied. This solid, which might be considered a representative of Fe3+ solid phases (iron corrosion products), was characterized

Externí odkaz: https://doaj.org/article/a9c77e88d2ff47fbb80fababd0961476

Fifteen Years of Radionuclide Research at the KIT Synchrotron Source in the Context of the Nuclear Waste Disposal Safety Case

Autor: Jörg Rothe, Marcus Altmaier, Ron Dagan, Kathy Dardenne, David Fellhauer, Xavier Gaona, Ernesto González-Robles Corrales, Michel Herm, Kristina O. Kvashnina, Volker Metz, Ivan Pidchenko, Dieter Schild, Tonya Vitova, Horst Geckeis

Publikováno v: Geosciences, Vol 9, Iss 2, p 91 (2019)

For more than 120 years, systematic studies of X-ray interaction with matter have been the basis for our understanding of materials—both of natural or man-made origin—and their structure-function relationships. Beginning with simple radiographic

Externí odkaz: https://doaj.org/article/bd7cac801e1d48d0a46d1bd725eb8eb9

Varying growth behavior of redox-sensitive nanoparticles on 1:1 and 2:1 clay surfaces: Mechanistic insights on preferential toxic ions removal in mono, co, and multi-metal contaminated waters

Autor: Nitin Khandelwal, Nisha Singh, Ekta Tiwari, Rémi Marsac, Dieter Schild, Thorsten Schäfer, Gopala Krishna Darbha

Publikováno v: Chemical Engineering Journal
Chemical Engineering Journal, 2023, 461, pp.141883. ⟨10.1016/j.cej.2023.141883⟩
Chemical Engineering Journal, 461, 141883

International audience; In the current study, contrasting growth behaviour of redox sensitive Fe0 nanoparticles (nZVI)was observed on different clay surfaces i.e., 1:1 non-swelling kaolinite (K-nZVI) and 2:1swelling bentonite (B-nZVI). Osmotic swelli

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::879e56e77796aff8f07929ed2bcc8a95

Exploring the Reduction Mechanism of

Autor: Diana M, Rodríguez, Natalia, Mayordomo, Andrés, Parra-Puerto, Dieter, Schild, Vinzenz, Brendler, Thorsten, Stumpf, Katharina, Müller

Publikováno v: Inorganic chemistry. 61(26)

Technetium (Tc) is an environmentally relevant radioactive contaminant whose migration is limited when Tc(VII) is reduced to Tc(IV). However, its reaction mechanisms are not well understood yet. We have combined electrochemistry, spectroscopy, and mi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::d0017ac4f8b2d74f25228c8a7f4e136f
https://pubmed.ncbi.nlm.nih.gov/35748436