Comparison of the Long-Term Stability of TiO2 Hydrosols with Different Concentration of Nanoparticles

Olga Pavlova-Verevkina; Natalia Golubko; Alexander Sumbatov; Ludmila Ozerina

doi:10.4028/www.scientific.net/AST.77.53

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HomeAdvances in Science and TechnologyAdvances in Science and Technology Vol. 77Comparison of the Long-Term Stability of TiO2...

Comparison of the Long-Term Stability of TiO₂ Hydrosols with Different Concentration of Nanoparticles

Abstract:

The long-term stability of two TiO2 hydrosols with concentration of TiO2 nanoparticles 1 and 12 mass.% was compared by turbidimetry and dynamic light scattering. The both sols were stabilized by HCl at pH=0.5. It was found that the mean hydrodynamic radius of particles and the turbidity of the sols increased slowly for six months of investigation and the kinetics of the “ageing” of the sols did not depend on TiO2 concentration. The obtained results will enable to determine mechanisms of the slow growth of nanoparticles and to modify nanoparticles structure.

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Periodical:

Advances in Science and Technology (Volume 77)

Pages:

53-58

DOI:

https://doi.org/10.4028/www.scientific.net/AST.77.53

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Online since:

September 2012

Authors:

Olga Pavlova-Verevkina, Natalia Golubko, Alexander Sumbatov, Ludmila Ozerina

Keywords:

Hydrosols, Kinetic, Stability, TiO₂ Nanoparticle

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