1P3-12 Capture of nano particle by using ultrasonic nebulizing(Poster Session)

Abstract

In this study, with the ultrasonic nebulizing, a collecting method for the nano particles with intended size from TiO_2 suspension with agglomerated particles was proposed. The relationship between the size distribution of the nano particles, which can be included in the droplets, and the surface tension of the suspension was derived theoretically. The surface tension of the suspension was controlled with methanol, and the particle size distribution of the collected nano particles was measured with different concentration of the methanol. As the surface tension is decreased by the concentration of methanol, mode value of the nano particle diameter decreased and the particle number per unit volume increased. This result agrees with the tendency from the theoretical calculation, thus we can confirm that the nano particles with intended size can be captured from the suspension by controlling of the surface tension of the suspension.