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
Citations
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Uranyl-chlorite sorption/desorption: evaluation of different U(VI) sequestration processes.
TL;DR: In this article, the authors used batch sorption/desorption experiments combined with U LIII-edge X-ray absorption near-edge structure (XANES) spectroscopy, extended Xray absorption fine structure (EXAFS), scanning and transmission electron microscopy, synchrotron-based microdiffraction, and surface complexation modeling to investigate the dominant sorption process(es) governing uranyl uptake by chlorite.
Journal ArticleDOI
Neptunium(V) Sorption on Hematite (α-Fe2O3) in Aqueous Suspension: The Effect of CO2
TL;DR: In this article, a data set for the Sorption of Np(V) on hematite is provided and the effect of carbonate species on neptunyl (NpOJ) Sorption as a function of partial pressures of COj is investigated.
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Interaction of inorganic anions with iron-mineral adsorbents in aqueous media--a review.
TL;DR: The aim of this paper is to provide an overview of the properties of iron and iron minerals and their reactivity with some important inorganic anionic contaminants present in water and their usage in water treatment technology.
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Nonreductive Biomineralization of Uranium(VI) Phosphate Via Microbial Phosphatase Activity in Anaerobic Conditions
TL;DR: In this article, nonreductive uranium biomineralization promoted by microbial phosphatase activity was investigated in anaerobic conditions in the presence of high nitrate and low pH as an alternative approach to the bioreduction of U(VI).
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Modelling Cu(II) adsorption to ferrihydrite and ferrihydrite–bacteria composites: deviation from additive adsorption in the composite sorption system
TL;DR: In this paper, a molecular-level surface complexation model for Cu adsorption on pure ferrihydrite and B. subtilis composites was developed and compared to the results of a component linear additivity approach.
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.