Construction of novel metal-free graphene oxide/graphitic carbon nitride nanohybrids on carbon cloth and efficient degradation of RhB under visible light irradiation

Photocatalytic technology has a wide range of application prospects, but due to the low degradation efficiency of photocatalytic materials at the present stage, difficult to recycle and other problems, seriously restricted its development, so it is urgent to prepare the efficient photocatalytic material. This article reports a novel metal-freephotocatalyst of the construction of graphene oxide (GO)/graphite-phase carbon nitride (g-C3N4) hetero-junction on carbon cloth (CC). The GO/g-C3N4 /CC photocatalyst has excellent degradation rate of Rhodamine B (RhB) in the visible light. Due to the formation of a heterojunction between g-C3N4 and GO, the light absorption of the photocatalyst was improved and the rapid recombination of photocarriers was reduced. After 5 cycles, there was no significant reduction in photocatalytic activity. We designed a new type of multi-layer membrane filter photocatalytic reactor, RhB put into the device to simulate the flow of waste water and degrade. The results show that the filter film photocatalyst shows good photocatalytic activity of RhB degradation. The introduction of carbon cloth substrate solves the problems of separation and cycle life of this photocatalyst.

Automated summary

This study reports a metal-free photocatalyst with graphene oxide/graphite-phase carbon nitride hetero-junction on a carbon cloth substrate. The photocatalyst shows excellent degradation rate of Rhodamine B under visible light, and maintains high catalytic activity after multiple cycles.