Dispersion of carbon nanotubes into water without dispersant using cavitation bubble plasma
Abstract
High-speed and homogeneous water-dispersion of carbon nano tubes (CNTs) with superior characteristics is a key technology for industrial applications. Liquid-phase plasma is one of good method to disperse CNTs in aqueous solution. However, the treatment speed of the liquid-phase plasma is not enough for industrial applications. In the present experiment, a novel high-speed dispersion device using cavitation bubble plasma (CBP) was developed. In this method the plasma was generated efficiently in bubbles in water. The cup-stacked CNTs were uniformly dispersed in ion-exchange water by the CBP treatment without dispersant. A liter of CNTs suspension with 9.2 wt% in concentration can be treated with the CBP processing of 135 min.
- Publication:
-
Vacuum
- Pub Date:
- February 2017
- DOI:
- 10.1016/j.vacuum.2016.07.026
- Bibcode:
- 2017Vacuu.136..209O
- Keywords:
-
- Cavitation bubble plasma;
- Cavitation;
- Liquid-phase plasma;
- Dispersion;
- Carbon nanotubes;
- Cup-stacked carbon nanotubes