Plasma Bubbles: A Route to Green Chemistry

The interface between plasma and liquid plays an important role in the mass transfer and formation of reactive oxygen and nitrogen species in liquids. The plasma bubbles provide a large interaction surface area and also reduce the breakdown voltage and energy consumption of water activation. Our goal is to replace chemicals or energy from the burning of carbon-based fuels with supplies of "green" electrons. This presentation will fully describe the plasma bubble technology from the aspects of plasma characteristics, gas-liquid mass transfer and green chemistry applications. Example One will focus on the plasma bubbles-enabled water purification, which will emphasize the significance of plasma bubble characteristics for transfering plasma reactive species in water; Example Two will focus on the plasma bubbles for ROS production (H2O2), with the further improvement of H2O2 yield by photocatalysis; Example Three will focus on the the plasma bubbles for RNS production (NOx) and the combination of electrochemical catalysis for ammonia production. Overall, the presentation will summarize the advances of our recent studies in the plasma bubble technology and outline some outlooks in future researchs.