Journal ArticleDOI
Adsorption of uranyl onto ferric oxyhydroxides: Application of the surface complexation site-binding model
TLDR
In this paper, the surface complexation-site binding model of Davis et al. was used to predict uranyl adsorption from aqueous electrolyte solution onto well-characterized goethite, amorphous ferric oxyhydroxide and hematite sols at 25°C.About:
This article is published in Geochimica et Cosmochimica Acta.The article was published on 1985-09-01. It has received 777 citations till now. The article focuses on the topics: Uranyl carbonate & Uranyl.read more
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CO2 and Rn degassing from the natural analog of Campo de Calatrava (Spain): Implications for monitoring of CO2 storage sites
Javier Elío,Marcelo F. Ortega,Barbara Nisi,L.F. Mazadiego,Orlando Vaselli,Juan Caballero,Fidel Grandia +6 more
TL;DR: In this article, the authors investigated the long-term impacts associated with the potential leakage in geological storage of CO2 Degassing of CO 2 and radon isotopes from soil, gas vents and thermal water discharges was investigated in the natural analog of Campo de Calatrava Volcanic Field (CCVF; Central Spain).
Journal ArticleDOI
Fate of Adsorbed U(VI) during Sulfidization of Lepidocrocite and Hematite.
TL;DR: Sulfidization of Fe oxides can have diverse consequences for U mobility: in short-term, desorption of U(VI) increases U mobility, while reduction to U(IV) and its possible incorporation in Fe transformation products may lead to long-term U immobilization.
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Adsorption and kinetic behavior of uranium and thorium in seawater-sediment system
TL;DR: The adsorption and kinetic mechanism of uranium and thorium in seawater-sediments system of Mumbai Harbour Bay (MHB) has been studied by K petertodd d values of two sets of experimental determinations using a batch experiment.
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Surface structure of ferrihydrite: Insights from modeling surface charge
TL;DR: In this article, a surface complexation model using the recently proposed surface structure that incorporates tetrahedrally coordinated Fe atoms was proposed to describe the surface charge curves of Ferrihydrite.
References
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Journal ArticleDOI
Uranium solution-mineral equilibria at low temperatures with applications to sedimentary ore deposits
TL;DR: The Gibbs free energies, enthalpies and entropies of 42 dissolved uranium species and 30 uranium-bearing solid phases have been critically evaluated from the literature and estimated when necessary for 25°C.
Journal ArticleDOI
Surface ionization and complexation at the oxide/water interface
TL;DR: In this article, a method for determination of intrinsic ionization and complexation constants of oxide surface sites from potentiometric titration data is reported using these experimental properties and the stoichiometry of surface reactions, surface charge, σo, adsorption density, Γi, and diffuse layer potentials, ψd, at the oxide/water interface.
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Surface ionization and complexation at the oxide/water interface II. Surface properties of amorphous iron oxyhydroxide and adsorption of metal ions
James A. Davis,James O. Leckie +1 more
TL;DR: In this paper, the site-binding model for the electrical double layer of hydrous oxides reported in a previous paper is applied to the adsorption of metal ions from dilute solution and to complex heterogeneous systems, i.e., amorphous iron oxyhydroxide.