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Development of a Z-scheme Ag/Ag2WO4/g-C3N4 photocatalyst for RhB fast degradation assisted with H2O2

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Abstract

In this work, a series of Z-scheme Ag/Ag2WO4/g-C3N4 (AAC) photocatalysts were successfully constructed by the deposition–precipitation method at room temperature. The phase, structure, morphology and optical property of the as-prepared photocatalysts were well characterized. Interestingly, all AAC exhibited prominent photocatalytic activity for Rhodamine B (RhB) degradation under visible light illumination. Especially, AAC-3 possessed the higher RhB degradation rate (k = 0.1855 min−1). More remarkably, when H2O2 (1 mL 0.0977 mol/L) was dissolved into reaction system, the degradation rate of RhB was further improved (k = 0.7899 min−1), which could be mainly attributed to the high separation rate of photogenic carriers and more active species. Meanwhile, a feasible photocatalytic reaction mechanism was proposed and discussed in detail.

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Acknowledgements

The authors gratefully acknowledge funding for this work from AnHui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, the National Natural Science Foundation of China (21171002) and Anhui Provincial Natural Science Foundation (1708085MB37).

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Authors and Affiliations

  1. College of Chemistry and Chemical Engineering, Anhui University, Hefei, 230601, China

    Xule Wang, Jimei Song, Yun Lu, Wanrong Zhu & Gang Hu

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  1. Xule Wang
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  3. Yun Lu
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  4. Wanrong Zhu
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  5. Gang Hu
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Correspondence to Jimei Song.

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Wang, X., Song, J., Lu, Y. et al. Development of a Z-scheme Ag/Ag2WO4/g-C3N4 photocatalyst for RhB fast degradation assisted with H2O2. J Mater Sci: Mater Electron 32, 2061–2074 (2021). https://doi.org/10.1007/s10854-020-04973-5

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