Preparation and visible light catalytic performance of WO3/g-C3N4 composite photocatalyst

HUANG Youpeng; WU Fuli; LI Bing; YANG Benhong

doi:10.13801/j.cnki.fhclxb.20210303.001

Volume 38 Issue 12

Dec. 2021

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HUANG Youpeng, WU Fuli, LI Bing, et al. Preparation and visible light catalytic performance of WO3/g-C3N4 composite photocatalyst[J]. Acta Materiae Compositae Sinica, 2021, 38(12): 4265-4272. doi: 10.13801/j.cnki.fhclxb.20210303.001

Citation:

HUANG Youpeng, WU Fuli, LI Bing, et al. Preparation and visible light catalytic performance of WO₃/g-C₃N₄ composite photocatalyst[J]. Acta Materiae Compositae Sinica, 2021, 38(12): 4265-4272. doi: 10.13801/j.cnki.fhclxb.20210303.001

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Preparation and visible light catalytic performance of WO₃/g-C₃N₄ composite photocatalyst

doi: 10.13801/j.cnki.fhclxb.20210303.001

HUANG Youpeng^1
,,
WU Fuli^1
,,
LI Bing^2
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YANG Benhong^{2
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1.
School of Biology Food and Environmental Engineering, Hefei University, Hefei 230601, China
2.
School of Energy Materials and Chemical Engineering, Hefei University, Hefei 230601, China

Received Date: 2020-12-09
Accepted Date: 2021-02-12

Available Online: 2021-03-03

Publish Date: 2021-12-01

Abstract

Abstract

The WO₃/graphite phase carbon nitride (g-C₃N₄) composites were prepared by mixing self-made layered g-C₃N₄ with WO₃ nanoplates and afterward calcination process, and were characterized by XRD, SEM, TEM, UV-Vis DRS and PL. The results show that g-C₃N₄ presents graphene-like layered structure, and WO₃ indicates nanoplate structure, and scatters on the surfaces of g-C₃N₄. After compounding with WO₃, the absorption edge of UV-Vis spectrum shifts to red, which widens the response of g-C₃N₄ to visible light. The photocatalytic degradation properties of WO₃/g-C₃N₄ were examined using rodamine B (RhB) as a simulated pollutant. When the mass ratio of WO₃/g-C₃N₄ is 1∶5, the best photocatalytic activity is obtained. After 60 min of visible light irradiation, the degradation rate of RhB can reach 94.9%. The photocatalyst shows good stability, as the photodegradation rate of RhB reaches 88.9% after repeated use of the same photocatalyst for 6 times. The study of photocatalytic mechanism shows that superoxide radical (·O₂⁻) is the main active species for photocatalytic degradation of RhB.
- WO₃/g-C₃N₄,
- composite semiconductor,
- RhB,
- photocatalytic degradation,
- nanoplate
Long Abstrsct
Innovation Points

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References(27)

References

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