ISSN : 0970 - 020X, ONLINE ISSN : 2231-5039
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Abstract

The influence of parameters of spark discharge generator on dimensional characteristics of synthesized TiO2 nanoparticles

Alexey Efimov*, Valentin Sukharev, Victor Ivanov, Anna Lizunova

DOI : http://dx.doi.org/10.13005/ojc/310456


Abstract:

A multi-spark discharge generator was used for the synthesis of TiO2 nanoparticles. The nanoparticles were obtained in the form of fractal-like agglomerates with an average size of 30-60 nm consisting of primary spherical nanoparticles with a diameter of about 7-8 nm according to TEM measurements. We found that changing the operating parameters of the generator - energy of the capacitor (2 to18 J), repetition frequency of discharge (0.5 to 4 Hz) and velocity of airflow (1.4 to 5.4 m/s) changed only the size of the agglomerates while the size of the primary nanoparticles stayed the same.

Keywords:

Titanium dioxide; nanoparticles; spark discharge; synthesis

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