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Design and preparation of easily recycled Ag2WO4@ZnO@Fe3O4 ternary nanocomposites and their highly efficient degradation of antibiotics

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Abstract

The Ag2WO4@ZnO@Fe3O4 ternary nanocomposites with high photodegradation activity were synthesized. Compared with Ag2WO4 and ZnO crystals, the ternary nanocomposites could improve the rate of degrading antibiotics to 152.00 and 143.00 %, respectively. Noticeably, the ternary nanocomposites completely degraded the TH within 1.75 h under sunlight irradiation, which paved a new way for its practical application. The matching of energy-band structure between Ag2WO4 and ZnO crystals induced an efficient photogenerated electron transfer from the conduction band of ZnO to the conduction band of Ag2WO4, leading to valid separation and transfer of photogenerated charge carrier, and the subsequent promotion of photocatalytic activity. Furthermore, the introduction of Fe3O4 particle not only realized the recycling of catalyst but also enhanced the utilization rate of visible light of Ag2WO4@ZnO@Fe3O4 ternary nanocomposites.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (Grant 21341007), Fundamental Research Funds for the Central Universities (Grant 222201313005), and State Key Laboratory of Pollution Control and Resource Reuse Foundation (Grant 13019).

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Authors and Affiliations

  1. Key Laboratory for Advanced Materials, East China University of Science and Technology, Shanghai, 200237, People’s Republic of China

    Juan Shen, Yi Lu & Jin-Ku Liu

  2. Department of Chemistry, Chizhou University, Chizhou, 247000, People’s Republic of China

    Xiao-Hong Yang

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  1. Juan Shen
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  2. Yi Lu
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Correspondence to Jin-Ku Liu or Xiao-Hong Yang.

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Shen, J., Lu, Y., Liu, JK. et al. Design and preparation of easily recycled Ag2WO4@ZnO@Fe3O4 ternary nanocomposites and their highly efficient degradation of antibiotics. J Mater Sci 51, 7793–7802 (2016). https://doi.org/10.1007/s10853-016-0063-9

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