Figure 8
(a) Illustration of nanoparticle-surfactant interaction and nanoparticle adsorption on bubble surface. Confocal fluorescence image of SiO2/SDBS foams: (b) 0.25 wt% SiO2 nanoparticle + 0.1 wt% SDBS + N2; (c) 1.00 wt% SiO2 nanoparticle + 0.1 wt% SDBS + N2.
