V2 Bi4 O11

V₂Bi₄O₁₁ is a mixed-valence bismuth vanadate ceramic compound belonging to the family of layered oxide semiconductors. This is a research material of interest in photocatalysis and solid-state chemistry, where bismuth vanadates are explored for visible-light-driven applications due to their narrow bandgap and layered crystal structure. The specific V₂Bi₄O₁₁ phase remains primarily in academic investigation, with potential relevance to photocatalytic water splitting, pollutant degradation, and possibly photoelectrochemical devices, though it has not achieved widespread industrial adoption compared to more common bismuth vanadate polymorphs.