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Effect of Water Chemistry on Zeta Potential of Air Bubbles

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Figure

Figure 1. Schematic view of the charged air bubble in aqueous solution. The presence of the charges on the bubble surface causes a specific ions distribution leading to formation of an electric double layer
Figure 2.  Effect of pH and various surfactants on zeta potentials of air bubbles in aqueous solution
Figure 3. A schematic view of the various surfactant molecules adsorbing on the air-water interface: (a) The adsorption of SDS on the air-water interface greatly decreased (more negative) the zeta potential of air bubble
Figure 4.  Effect of concentration of the surfactants on the zeta potentials of air bubbles at pH=6.5
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