Fig. 6. Photocatalytic performance of polyHIPEs_(NH2)/RGO/Ag₃PO₄. (a) Photodegradation of MB over polyHIPEs_(NH2)/Ag₃PO₄, RGO/Ag₃PO₄ and polyHIPEs_(NH2)/RGO/Ag₃PO₄. (b) Photodegradation of MB, RB and EY over polyHIPEs_(NH2)/RGO/Ag₃PO₄, and adsorption spectra of MB, RB and EY over polyHIPEs_(NH2)/RGO/Ag₃PO₄ in inset. (c) Cycling performance for photodegradation of MB over polyHIPEs_(NH2)/RGO/Ag₃PO₄ under visible light irradiation. (d) Schematic illustration of the photocatalytic mechanism of polyHIPEs_(NH2)/RGO/Ag₃PO₄. (Photocatalysts: 20 mg, dye solutions: 20 mL with a concentration of 3.5 × 10⁻⁵ M).