Self-assembled g-C3N4 nanotubes/graphdiyne composite with enhanced photocatalytic CO2 reduction

In this work, g-C3N4 nanotubes (CNtb) with sheet-like graphdiyne (GDY) composite are successfully prepared through a simple self-assembly method. The composite is proved to significantly improve the separation efficiency of photogenerated carriers and the conductivity of the material, which consequently leads to enhanced performance towards photocatalytic CO2 reduction. For the composite, the yields for CO and CH4 are increased by 18-20 times, compared with pure CNtb. This work provides a new idea for the preparation of efficient g-C3N4 photocatalysts in the future. (C) 2021 Elsevier B.V. All rights reserved.

Automated summary

In this study, g-C3N4 nanotubes with sheet-like graphdiyne composite were successfully prepared through a simple self-assembly method. The composite significantly improved the separation efficiency of photogenerated carriers and the conductivity of the material, leading to enhanced performance towards photocatalytic CO2 reduction. Compared with pure CNtb, the yields for CO and CH4 in the composite were increased by 18-20 times, providing a new idea for the preparation of efficient g-C3N4 photocatalysts in the future.