Construction of full spectrum-driven CsxWO3/g-C3N4 heterojunction catalyst for efficient photocatalytic CO2 reduction

Full spectrum-driven CsxWO(3)/g-C3N4 catalyst was successfully synthesized by the combination of solvothermal and ultrasonication methods and used in CO2 photocatalytic reduction. The experimental results suggested that 20 wt% CsxWO3/g-C3N4 catalyst possessed the best yield of CH4 under NIR and full spectrum light irradiation, which were 1.72 and 6.79 mu mol.g(-1).h(-1), respectively. This outstanding photocatalytic activity could be attributed to the localized surface plasmonic resonance effect and the formation of heterojunction structure, which led to the improved charge separation efficiency, good light-harvesting ability and broadened light response.

Automated summary

The full spectrum-driven CsxWO3/g-C3N4 catalyst showed excellent performance in CO2 photocatalytic reduction, with the 20 wt% catalyst achieving the best methane yield under NIR and full spectrum light irradiation. This was attributed to the localized surface plasmonic resonance effect and the formation of heterojunction structure, leading to improved charge separation efficiency, good light-harvesting ability, and broadened light response.