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
More filters
Journal ArticleDOI
Analysis of phosphate adsorption onto ferrihydrite using the CD-MUSIC model.
TL;DR: Describing the phosphate adsorption process onto ferrihydrite nanoparticles, for the entire pH and ionic strength range, has been made taking into account the presence of protonated and nonprotonated bidentate surface complexes.
Journal ArticleDOI
UraniumVI sorption behavior on silicate mineral mixtures.
TL;DR: If this approach can be demonstrated for natural mineral assemblages, it may be useful as a relatively simple method for improving radionuclide transport models in performance-assessment calculations.
Journal ArticleDOI
An assemblage model for cation binding by natural particulate matter
Stephen Lofts,Edward Tipping +1 more
TL;DR: The surface chemistry assemblage model for particles (SCAMP) as mentioned in this paper describes the equilibrium adsorption of protons and metals by natural particulate matter using a combination of submodels for individual binding phases.
Journal ArticleDOI
Phosphate effects on copper(II) and lead(II) sorption to ferrihydrite
TL;DR: In this article, the effect of phosphate on the sorption of copper and lead to ferrihydrite was investigated using a combination of batch experiments, extended X-ray absorption fine structure (EXAFS) spectroscopy and surface complexation modeling with the three-plane CD-MUSIC model.
Journal ArticleDOI
Acid/base reactions and Al(III) complexation at the surface of goethite
TL;DR: In this article, the acid/base reactions and Al(III) complexation at the goethite-solution interface have been investigated at 298.2 K in NaNO3 solutions at a constant ionic strength of 0.1 M. Equilibrium measurements were performed as potentiometric titrations using a glass electrode.
References
More filters
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.
Journal ArticleDOI
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.