Facile Synthesis of Bi/Bi2MoO6/TiO2 Composite Nanofibers with enhanced Photocatalytic Activity Under Visible Light

Abstract

The plasma Bi/Bi 2 MoO 6 /TiO 2 composite nanofibers were prepared via a facile one-step solvothermal method, using electrospun TiO 2 nanofibers as substrate, and glucose as reducing agent. The photocatalytic activity of the samples were evaluated by photodegradation of rhodamine B and 4-chlorophenol solution under visible light irradiation. The results showed that metal Bi nanoparticles were generated on the surface of Bi 2 MoO 6 nanosheets via reduction of Bi 3+ in situ by glucose, meanwhile grew on the TiO 2 nanofibers surface. The photocatalytic activity of the Bi/Bi 2 MoO 6 /TiO 2 composites nanofibers can be further improved by depositing metallic Bi owing to its surface plasmon resonance. The RhB catalyzed by the sample was degraded by 95.8% under visible light irradiation for 50 min, and the degradation efficiency remained over 92% after 5 cycles while the 4-CP was degraded for 68.8% under visible light irradiation for 180 min. All above results suggest that the photocatalysts have good photocatalytic activity and stability.