Preparation and photocatalytic properties of WO3-Ag/graphitic C3N4 Z-scheme composite photocatalyst

LIU Chengbao; TANG Fei; ZHU Chen; MAO Dongxing; QIAN Junchao; CHEN Zhigang

doi:10.13801/j.cnki.fhclxb.20200622.004

Volume 38 Issue 1

Jan. 2021

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Article Navigation > Acta Materiae Compositae Sinica > 2021 > 38(1): 209-220

LIU Chengbao, TANG Fei, ZHU Chen, et al. Preparation and photocatalytic properties of WO3-Ag/graphitic C3N4 Z-scheme composite photocatalyst[J]. Acta Materiae Compositae Sinica, 2021, 38(1): 209-220. doi: 10.13801/j.cnki.fhclxb.20200622.004

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LIU Chengbao, TANG Fei, ZHU Chen, et al. Preparation and photocatalytic properties of WO₃-Ag/graphitic C₃N₄ Z-scheme composite photocatalyst[J]. Acta Materiae Compositae Sinica, 2021, 38(1): 209-220. doi: 10.13801/j.cnki.fhclxb.20200622.004

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Preparation and photocatalytic properties of WO₃-Ag/graphitic C₃N₄ Z-scheme composite photocatalyst

doi: 10.13801/j.cnki.fhclxb.20200622.004

Jiangsu Key Laboratory for Environment Functional Materials, School of Chemistry, Suzhou University of Science and Technology, Suzhou 215009, China

Received Date: 2020-03-26
Accepted Date: 2020-06-05

Available Online: 2020-06-23

Publish Date: 2021-01-15

Abstract

Abstract

WO₃ nanorods were synthesized by hydrothermal method and WO₃-Ag/graphitic C₃N₄ (g-C₃N₄) composite photocatalysts were synthesized by simple solvent evaporation and light deposition. The materials were characterized by XRD, SEM and TEM, et al. The results show that the WO₃-Ag/g-C₃N₄ composite photocatalysts can expand the visible light response and effectively inhibit the photogenic electron and hole recombination due to the successful construction of Z-scheme heterojunction. Under the optimal conditions, the catalytic degradation efficiency of Rhodamine B (RhB) in 100 min is up to 96.8%, and the WO₃-Ag/g-C₃N₄ composite photocatalysts have excellent stability. The photocatalytic mechanism indicates that the real active substances in photocatalytic experiments are hydroxyl radical and superoxide radical.
- C₃N₄,
- WO₃,
- Ag,
- nanoparticles,
- composite,
- photocatalysts
Long Abstrsct
Innovation Points

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References(25)

References

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