Vogelsberger W, Schmidt J, Roelofs F (2008)
Publication Language: English
Publication Status: Published
Publication Type: Journal article, Original article
Publication year: 2008
Publisher: ELSEVIER SCIENCE BV
Book Volume: 324
Pages Range: 51-57
Journal Issue: 1-3
DOI: 10.1016/j.colsurfa.2008.03.032
The solubility of nanoparticles was measured in aqueous solution as a function of time, and oxides of aluminium, silicon, titanium, and zirconium were investigated. Our solubility results show a maximum at the beginning of the dissolution process, whereas over time, the solubility levels are shown to decrease. Depending on the special conditions the solubility maximum may exceed the long-time solubility of the nanoparticles by several orders of magnitude. This behaviour is called as kinetic size effect. The extent of the effect depends on the size, surface tension and mass of the particles exposed to dissolution. It will always be of practical interest if a larger quantity of nanoparticles is brought into contact with a solvent, even when the equilibrium solubility data appears negligible. A rigorous thermodynamic and kinetic analysis of a colloidal system, which includes nucleation, particle growth, Ostwald ripening, and dissolution of particles, shows at least a qualitative agreement between all the experimental results and model calculations. (C) 2008 Elsevier B.V. All rights reserved.
APA:
Vogelsberger, W., Schmidt, J., & Roelofs, F. (2008). Dissolution kinetics of oxidic nanoparticles: The observation of an unusual behaviour. Colloids and Surfaces A-Physicochemical and Engineering Aspects, 324(1-3), 51-57. https://doi.org/10.1016/j.colsurfa.2008.03.032
MLA:
Vogelsberger, Wolfram, Jochen Schmidt, and Frank Roelofs. "Dissolution kinetics of oxidic nanoparticles: The observation of an unusual behaviour." Colloids and Surfaces A-Physicochemical and Engineering Aspects 324.1-3 (2008): 51-57.
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