Extended Data Fig. 6: The air purification performance of the ELBS.
From: Continuous air purification by aqueous interface filtration and absorption
a. Adhesion of the hydrophobic particles to the gas–liquid interface. b. Representation of the forces acting on the hydrophobic particle at the bubble interface. Here, Rp is the radius of the particle, Rb is the radius of the bubble, FP is the force resulting from the capillary pressure inside the gas bubble, FB is the buoyancy force, FG is the gravitational force, Fγ is the surface tension force of the liquid. c. Optical image of the in situ study customized particulate matter (PM) purification system. d. The schematic of the purification system and the capture process of the droplets generated from the bursting bubbles. e. The particle size distribution in the liquid in the inlet side and outlet side. There are two purification steps: the direct interception and removal of larger PM in the polluted air by the liquid-lined porous matrix (inlet side), and the capture of smaller PM by the functional liquid through the microbubble interface (outlet side).
