Enhanced Photoelectrochemical Water Splitting Performance of α-Fe2O3 Photoanodes through Co-modification with Co Single Atoms and g-C3N4

In this study, a photoanode material, g-C 3 N 4 /Fe 2 O 3 anchored with Co single atoms (Co SAs) (CoSAs-g-C 3 N 4 /Fe 2 O 3 ), was designed and assembled to improve water oxidation performance. The synergistic effect of g-C 3 N 4 /Fe 2 O 3 heterojunction and Co SAs facilitated efficient charge separation.