Date: 24 Nov 2004

Nanoparticle suspension preparation using the arc spray nanoparticle synthesis system combined with ultrasonic vibration and rotating electrode

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Abstract

This study aims to investigate the use of a new nanoparticle preparation method, i.e., the arc spray nanoparticle synthesis system (ASNSS) combined with ultrasonic vibration and rotating electrode, to prepare TiO2 nanoparticle suspension. For the proposed new method of nanoparticle suspension preparation, this study has designed four different process modes of experimentation for comparison, in order to obtain suspended nanoparticles with smaller particle size and relatively good dispersion. This study discusses the process modes with different settings of variables including peak current, pulse duration, breakdown voltage, temperature of the dielectric fluid and amplitude of ultrasonic vibration, in order to determine the better conditions for the preparation of TiO2 nanoparticles suspension. The Transition Electron Microscope (TEM) image of the experiment result shows that TiO2 nanoparticles prepared by the ultrasonic vibration assisted vacuum arc spray process has an average particle size of less than 10 nm.