Interfacial properties of graphitic carbon nitride/nanodiamond composites toward synergistic improvement of photocatalytic degradation of organic contaminants
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Photocatalytic degradation of volatile organic compounds such as Rhodamine B (Rh B) is considered as one of a promising strategy for resolving environmental pollution problems. Graphitic carbon nitride (g-C3N4) has been widely used in various photocatalyst applications. However, compared to conventional metal-based photocatalysts, its photocatalytic activity is still low because of the low mobility of carriers. In this study, g-C3N4/nanodiamond (ND) hybrid composites were fabricated via a facile one-step heating strategy. The optimal g-C3N4/ND hybrid composites with 1.0 wt% ND loading content show the high performance in Rh B degradation under visible-light irradiation, which is more than about 2 times higher than that of the g-C3N4. In addition, reutilization experiments proved that the g-C3N4/ND composites have good stability and reusability.