One-step synthesis of water-soluble graphitic carbon nitride nanosheets with enhanced visible-light photocatalytic activity

In this study, water-soluble graphitic carbon nitride nanosheets (WS-CNNS) were successfully prepared by using the KOH/NaOH melt, and the synthesized WS-CNNS could be applied to the environmental treatment. The photocatalytic degradation experimental results showed that the WS-CNNS has great photocatalytic activity for photocatalytic degradation of Methylene blue (MB). Moreover, the capture experiments shown that H 2 O 2 played an important role in the photocatalytic degradation of MB. The superior photocatalytic performance of WS-CNNS was mainly ascribed to the characteristics of water solubility together with optical properties. This research provides a new perspective for the application of graphitic carbon nitride nanosheets in environmental remediation.