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Fabrication of magnetically recyclable yolk-shell Fe3O4@TiO2 nanosheet/Ag/g-C3N4 microspheres for enhanced photocatalytic degradation of organic pollutants

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Abstract

Herein, we report the fabrication of Fe3O4@TiO2 nanosheet/Ag/g-C3N4 (Fe3O4@ns-TiO2/Ag/g-C3N4) composite photocatalysts with well-designed hierarchical yolk-shell structure. To endow the composites with fascinating features, multiple functional components are perfectly integrated into the definite structure. The photodegradation experiments of organic pollutants revealed a significant enhancement in photocatalytic activity of developed composites as compared to P25, which is mainly due to the synergetic interaction of the tailored three-dimensional (3D) yolk-shell porous nanostructure, extended sunlight response range, and retarded the recombination probability of photogenerated electrons-holes. More importantly, the hybrid samples exhibited superior magnetic properties due to the magnetic component. The excellent magnetic recyclability and reusability of the photocatalysts are verified by the magnetic hysteresis loop and cyclic photocatalytic degradation experiments, which is significant for the green and sustainable applications of photocatalysts. Considering its remarkable photocatalytic performance and expectant magnetic recyclability, the composite photocatalysts are expected to be a promising candidate to dispose of future environmental issues.

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Acknowledgements

The authors gratefully acknowledge the financial support from Jiangsu Agriculture Science and Technology Innovation Fund (JASTIF) (No. CX (18)2025), National Natural Science Foundation of China (No. 31871881), S&T Support Program of Jiangsu Province (No. BE2017623), the National First-class Discipline Program of Food Science and Technology (No. JUFSTR20180303), and the Distinguished Professor Program of Jiangsu Province.

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Authors and Affiliations

  1. State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, China

    Yan Lv, Lin Yue, Imran Mahmood Khan, You Zhou, Wenbo Cao, Sobia Niazi & Zhouping Wang

  2. School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China

    Yan Lv, Lin Yue, Imran Mahmood Khan, You Zhou, Wenbo Cao, Sobia Niazi & Zhouping Wang

  3. International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, 214122, China

    Yan Lv, Lin Yue, Imran Mahmood Khan, You Zhou, Wenbo Cao, Sobia Niazi & Zhouping Wang

  4. Collaborative Innovation Center of Food Safety and Quality Control of Jiangsu Province, Jiangnan University, Wuxi, 214122, China

    Zhouping Wang

  5. School of Food Science and Technology, National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian, 116024, China

    Zhouping Wang

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  1. Yan Lv
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  2. Lin Yue
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  3. Imran Mahmood Khan
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Correspondence to Zhouping Wang.

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Fabrication of magnetically recyclable yolk-shell Fe3O4@TiO2 nanosheet/Ag/g-C3N4 microspheres for enhanced photocatalytic degradation of organic pollutants

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Lv, Y., Yue, L., Khan, I.M. et al. Fabrication of magnetically recyclable yolk-shell Fe3O4@TiO2 nanosheet/Ag/g-C3N4 microspheres for enhanced photocatalytic degradation of organic pollutants. Nano Res. 14, 2363–2371 (2021). https://doi.org/10.1007/s12274-020-3237-3

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