Constructing A Stable Cds/Nb2o5 Z-Scheme Heterojunction for Efficient Photocatalytic Conversion of Co2

Abstract

Photocatalysis technology enables the conversion of CO2 into valuable carbon compounds. In this study, a stable CdS/Nb2O5 Z-scheme heterojunction was successfully constructed, which exhibited exceptional photocatalytic performance with the CdS loading of 15%, achieving a maximum CH4 and CO yield of 18.53 and 6.26 μmol g-1 h-1, respectively. The enhanced performance and stability of the photocatalytic system can be attributed to the successful construction of a CdS/Nb2O5 Z-scheme heterojunction, which effectively regulates the directional separation of photo-generated electrons and holes. This work provides a novel design and synthesis of stable CdS-containing Z-scheme heterojunction composite catalyst for highly photocatalytic CO2 conversion, holding great significance for high-active catalyst development and clean energy production.

Keywords: niobium pentoxide, cadmium sulfide, photocatalytic CO2 reduction, Z-scheme heterojunction