| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10377965 | Journal of Colloid and Interface Science | 2005 | 10 Pages |
Abstract
The colloid stability of synthetic titania particles was studied as a function of KCl concentration at pH values of 6.3, 6.7, and 8.4, using static light scattering to obtain stability ratios. Standard DLVO theory was then used to calculate the stability ratios as a function of salt concentration. Reasonable agreement between theory and experiment could only be obtained if an effective interaction radius, corresponding to surface asperities on the titania particles, was used in the calculation. High-resolution TEM images suggest that the effective interaction radius corresponds to the size of surface crystallites formed during synthesis.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Colloid and Surface Chemistry
Authors
David R.E. Snoswell, Jinming Duan, Daniel Fornasiero, John Ralston,