• Pavlova-Verevkina, O.; Ozerina, L.; Golubko, N.; Chemseddine, A.: Slow Aggregation of Titania Nanocrystals in Acidic Hydrosols. In: Chen, X. [u.a.] [Eds.] : Titanium dioxide nanomaterials : symposium held April 25 - 29, 2011, San Francisco, California, U.S.A. ; [Symposium GG, "Titanium Dioxide Nanomaterials" at the 2011 MRS spring meeting]New York, NY: Cambridge Univ. Press, 2011 (Materials Research Society symposium proceedings ; 1352). - ISBN 978-1-605-11329-6, p. mrss11-1352-gg11/1-6


Abstract:
The kinetics of slow aggregation of monodisperse TiO2 nanocrystals in the acidic hydrosols at room temperature was studied for months by turbidimetry. The dependence of the initial rate of aggregation on the pH was calculated. The comparison of results obtained by turbidimetry and small angle X-ray scattering permits to suppose that very loose aggregates form at the low pH in HCl solution. The dependencies obtained in this work for room temperature can be taken into consideration at the tuning of TiO2 nanoparticles morphology through thermal treatment of hydrosols.