One‐Pot Synthesis and DFT Calculations of Ti‐BiOCl/Bi Heterostructure Photocatalyst with Oxygen Vacancies and Bi Metal Induced by Ti Doping

Abstract Oxygen vacancies (OVs), doped Ti and plasmonic Bi metal are simultaneously introduced into BiOCl, which is prepared by a simple and one‐pot solvothermal method without any special reduction and high‐temperature processes. The microstructures, electronic structures, optical properties, and photodegradation activity are systematically discussed. Additionally, the amount of attached Bi metal and photocatalytic efficiency can be tuned via the content of doped Ti. The ultrahigh electron transfer tunnel between intermediate energy levels and attached Bi metals is confirmed through the close combination of active species detection experiments and density functional theory calculations. Further, the enhanced photocatalysis mechanism is discussed in detail. In the current study, the prospective on the preparation methods and modification strategies involving OVs, attached plasmonic Bi metal, and doped metal could be extended to other catalysts to regulate their interfacial properties and catalytic activity to deal with environmental problems.