fig4

Figure 4. Optimized atomistic models of (A) FeVO₄ and (B) FeVO₄:Cr samples and the DOS of (C) FeVO₄ and (D) FeVO₄:Cr samples; (E) Schematic diagram of FeVO₄ with or without Cr doping for photocatalytic water splitting. DOS: Density of states.