Low‐temperature synthesis one‐dimensional Ag <sub>2</sub> CO <sub>3</sub> /SnFe <sub>2</sub> O <sub>4</sub> <i>Z</i> ‐scheme with excellent visible‐light photoactivity
Xiaoli Su, Aihui Wang, Linyuan Xu, Wei Zhang, Fumin Guo, Dafeng Zhang, Xipeng Pu, Peiqing Cai
Abstract
Abstract In this study, Ag 2 CO 3 /SnFe 2 O 4 (Ag 2 CO 3 /SFO) photocatalyst was prepared by a simple hydrothermal‐ultrasonic method for the efficient degradation of ciprofloxacin and phenol. The SFO nanoparticles were attached on the surface of Ag 2 CO 3 rods synthesized by a low‐temperature precipitation method, resulting a unique 1D/0D morphology, which increased the number of active sites. Due to introduction of magnetic SFO, Ag 2 CO 3 /SFO exhibited excellent magnetic recovery performance. When the mass fraction of SFO was 5%, the degradation efficiency of composite photocatalyst was the highest, the degradation rate for ciprofloxacin was 6.5 and 1.5 times higher than pure SFO and Ag 2 CO 3 , respectively. The improved photoactivity of Ag 2 CO 3 /SFO should be attributed to the construction of heterojunction with tight interface, which boosts the separation and transfer of photoinduced electron and hole pairs. On the basis of experimental results, a possible Z ‐scheme photocatalytic mechanism was discussed. Additionally, the excellent photostability of Ag 2 CO 3 /SFO was proved by a cycle experiment.