Insights into the highly efficient SPR enhanced photodegradation of tetracycline by Bi/Bi 2 MoO 6 composites.

A Bi/Bi 2 MoO 6 nanocomposite is fabricated utilizing a simple one-pot solvothermal method, which shows great photodegradation ability to tetracycline (TC). The effect of Bi 0 nanoparticles on the photodegradation of TC was investigated, and it is ascribed to the surface plasmonic resonance (SPR) effect. The light energy could be strongly absorbed by the Bi 0 nanoparticles, and then transferred to the adjacent Bi 2 MoO 6 , to enhance the photocatalytic performance. The results of the sacrifice experiment and quantitative analysis of active radicals showed that the photoelectrons could react with soluble O 2 and ·OH to form ·O 2 - , which finally dominates in the process of photocatalytic degradation of TC. This work proposed a way to construct a highly efficient photocatalyst based on SPR effect, which has great application potential in environmental treatment.