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Nano Research 2021, 14(7): 2363-2371 https://doi.org/10.1007/s12274-020-3237-3
Research Article | Issue | Published: 05 July 2021

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

Show Author's Information Yan Lv1,2,3,  Lin Yue1,2,3,  Imran Mahmood Khan1,2,3,  You Zhou1,2,3,  Wenbo Cao1,2,3,  Sobia Niazi1,2,3,  Zhouping Wang1,2,3,4,5( )
State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China
Collaborative Innovation Center of Food Safety and Quality Control of Jiangsu Province, Jiangnan University, Wuxi 214122, China
School of Food Science and Technology, National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116024, China
Keywords:
g-C3N4, photocatalysis, Ag nanoparticles, magnetic separation, TiO2 nanosheet, hierarchical yolk-shell structure
Topics:
Photocatalysts
Cite this article:
Lv Y, Yue L, Khan IM, et al. Fabrication of magnetically recyclable yolk-shell Fe3O4@TiO2 nanosheet/Ag/g-C3N4 microspheres for enhanced photocatalytic degradation of organic pollutants. Nano Research, 2021, 14(7): 2363-2371. https://doi.org/10.1007/s12274-020-3237-3
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Abstract Full text Electronic supplementary material About this article

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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Electronic supplementary material
About this article

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

Show Author's information Yan Lv1,2,3, Lin Yue1,2,3, Imran Mahmood Khan1,2,3, You Zhou1,2,3, Wenbo Cao1,2,3, Sobia Niazi1,2,3, Zhouping Wang1,2,3,4,5( )
State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China
Collaborative Innovation Center of Food Safety and Quality Control of Jiangsu Province, Jiangnan University, Wuxi 214122, China
School of Food Science and Technology, National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116024, China

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.

Keywords: g-C3N4, photocatalysis, Ag nanoparticles, magnetic separation, TiO2 nanosheet, hierarchical yolk-shell structure

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Publication history
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Acknowledgements

Publication history

Received: 05 August 2020
Revised: 26 October 2020
Accepted: 09 November 2020
Published: 05 July 2021
Issue date: July 2021

Copyright

© Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2020

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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