Synergistic effect of Fermi level regulation and oxygen defect engineering on enhancing photocatalytic degradation performance of BiVO4/BiOI

In complex marine environments, the search for efficient antibacterial materials has become a research hotspot to combat marine biofouling. BiOI@BiVO 4 heterojunctions were fabricated by the hydrothermal processes for use in antibacterial field. BiOI@BiVO 4 heterojunction shows superior antibacterial performance to BiVO 4 , with >99.99 % Pseudomonas sp. killed in 4 h. Further photoelectrochemical experiments have shown the unique band structure greatly promotes the separation efficiency of photoinduced charge carriers and lowers the recombination rate of e − -h + , and thereby generates more highly oxidizing free radicals, achieving efficient sterilization. This research furnishes promising concepts and orientations for the evolution of high-efficiency antibacterial materials.