研究目的
Investigating the capability of Janus foam for unidirectional transport and effective collection of underwater gas bubbles, and demonstrating its application in underwater carbon capture.
研究成果
The Janus copper foam exhibits excellent unidirectional bubble transport property and effective gas collection performance with a maximum value of ~15 mL cm-2 min-1 at a laser scanning speed of 1 m s-1. The underlying physical mechanism is attributed to the cooperation of the buoyancy, adhesion and wetting gradient forces imposed on the bubble. The Janus foam could effectively capture underwater CO2 gas bubbles and facilitate the neutralization with alkaline solution, demonstrating its potential applications in bubble transport, carbon capture and controllable gaseous reactions in aqueous conditions.
研究不足
The gas collection capability of the Janus foam is limited by the laser scanning speed and the thickness of the superhydrophilic layer. A slower laser scanning speed results in excessive laser ablation, leading to elevated penetration resistance for bubble Janus.
