Designing of nanostructured hollow TiO2 spheres obtained by ultrasonic spray pyrolysis.
J Colloid Interface Sci
; 278(2): 342-52, 2004 Oct 15.
Article
em En
| MEDLINE
| ID: mdl-15450453
Theoretical model describing the mechanism of droplet formation and structure of hollow TiO2 spheres prepared by the process of ultrasonic spray pyrolysis, using colloidal solution consisting of the 2.5-nm TiO2 nanoparticles as a precursor, is developed. The proposed model quantitatively defines each line in the size distribution spectrum. The mechanism of droplet formation and/or particle genesis is fully determined by harmonization between the physical fields inherent to the system as the consequence of its physical characteristics: external, e.g., ultrasound, and internal. Agreement between theoretically obtained basic structural parameters (size distribution and geometry) and experimentally determined values was found.
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Base de dados:
MEDLINE
Tipo de estudo:
Prognostic_studies
Idioma:
En
Revista:
J Colloid Interface Sci
Ano de publicação:
2004
Tipo de documento:
Article