Separation of single nano particles from suspension by using ultrasonic atomization

It is very important to obtain non-agglomerated nano particle state for practical application of nano technology. In order to improve the functionality of products using nano particles, more precise control of particle size distribution is required in their synthesis process. However, synthesized nano particles are agglomerated due to physical and chemical reasons, and it veils the unique properties of nano particles and has disturbed their practical use. In this study, we propose a separation method for nano particles from suspension by using the droplets as the separation space. The particle size distribution of nano particles in the recollected suspension was measured. From the results, it was confirmed that it is possible to separate and to recollect monodispersed nano particles from original suspension with 0.002 wt.% TiO 2 powder by using suggested method.