Synthesis, Characterization of Boron and Fluorine Co-doping TiO2 and its Visible Light Photocatalytic Oxidation of 4-Chlorophenol

Boron and fluorine co-doped TiO₂ powders were prepared by hydrolysis of titanium tetra-n-butyl oxide in a mixed NH₄F-H₃BO₃-H₂O solution. The resulting powders were characterized by XRD and XPS. The photocatalytic activities of co-doped samples were evaluated by the decomposition of 4-chlorophenol under visible light irradiation. The degradation rate of 4-chlorophenol was enhanced by F-B-codoping TiO₂ under visible tight. The TOC analysis verified that 4-chlorophenol had been mineralized efficiently with F-B-codoping TiO₂ under visible light.