Photocatalytic Degradation of Gentian Violet with Li Doped Bismuth Oxide Nanorods

摘要： Li doped bismuth oxide nanorods have been synthesized via the hydrothermal route. The obtained nanorods possess semi-circular tips, the length and diameter are 1–5 μm and 50–350 nm, respectively. The photocatalytic activity of the Li doped bismuth oxide nanorods has been analyzed by the photocatalytic degradation of gentian violet (GV). GV with the concentration of 10 mg · mL?1 can be photodegraded totally in the presence of 10 mg Li doped bismuth oxide nanorods under UV light irradiation for 60 min. The photodegradation ratio of the Li doped bismuth oxide nanorods is closely relative to the content of the nanorods and initial GV concentration. The photodegradation ratio decreases obviously with the decrease of the content of the nanorods and increase of initial GV concentration.