Abstract
In this study, the flotation behavior and mechanism of an azobenzene-based surfactant on quartz were studied by micro-flotation tests, zeta potential measurements and adsorption analysis. The stability of foams produced by the surfactant can be controlled by ultraviolet (UV) light irradiation. Photocontrolled foams improve the floatability of quartz due to the significant changes in the foam properties. UV light irradiation decreases the zeta potential values of quartz and the adsorption of the surfactants on quartz. The azobenzene-based surfactant predominantly adsorbed to quartz compared to apatite.
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