Low-temperature synthesis one-dimensional Ag2CO3/SnFe2O4 Z-scheme with excellent visible-light photoactivity |
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| Authors: | Xiaoli Su Aihui Wang Linyuan Xu Wei Zhang Fumin Guo Dafeng Zhang Xipeng Pu Peiqing Cai |
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| Affiliation: | 1. School of Materials Science and Engineering, Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, Liaocheng, P. R. China;2. College of Optical and Electronic Technology, China Jiliang University, Hangzhou, Zhejiang, P. R. China |
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| Abstract: | In this study, Ag2CO3/SnFe2O4 (Ag2CO3/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 Ag2CO3 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, Ag2CO3/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 Ag2CO3, respectively. The improved photoactivity of Ag2CO3/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 Ag2CO3/SFO was proved by a cycle experiment. |
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| Keywords: | 1D/0D nanocomposite Ag2CO3/SnFe2O4 photodegradation Z-scheme photocatalyst |
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