Abstract
The highly effective g- $$\hbox {C}_{3}\hbox {N}_{4}$$ hybridized CdS photocatalysts were synthesized via a successive calcination and hydrothermal process. The as-prepared photocatalysts were characterized by X-ray powder diffraction, transmission electron microscopy and UV–Vis diffuse reflectance spectroscopy. The photocatalytic performance of the $$\hbox {C}_{3}\hbox {N}_{4}$$ /CdS nanocomposites was evaluated by the photodegradation of RhB under visible light irradiation. The results showed that photocatalytic ability of the $$\hbox {C}_{3}\hbox {N}_{4}$$ /CdS nanocomposites was higher than that of pure $$\hbox {C}_{3}\hbox {N}_{4}$$ and CdS. The enhanced photocatalytic activity could be attributed to the high separation efficiency of the photo-excited electron-hole pairs. A possible mechanism of the photocatalytic degradation of RhB on $$\hbox {C}_{3}\hbox {N}_{4}/$$ CdS nanocomposites was also proposed.
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