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A novel visible-light-driven Z-scheme C3N5/BiVO4 heterostructure with enhanced photocatalytic degradation performance

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Abstract

As a visible-light response semiconductor materials, bismuth vanadate (BiVO4) is extensively applied in photodegradation organic dye field. In this study, we synthesized C3N5 nanosheets and coupled with decahedral BiVO4 to construct a Z-scheme C3N5/BiVO4 heterostructure with close interface contact. By introducing C3N5 into BiVO4, the built Z-scheme transfer pathway provides silky channel for charge carrier migration between different moieties and enables photoexcited electrons and holes accumulated on the surface of BiVO4 and C3N5. The accelerated separation of charge carriers ensures C3N5/BiVO4 heterostructures with a powerful oxidation capacity compared with pure BiVO4. Due to the synergistic effect in Z-scheme heterostructure, the C3N5/BiVO4 demonstrated an improved photodegradation ability of rhodamine B (RhB) and methylene blue (MB) that of bare BiVO4.

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Funding

Financial support was provided by the National Natural Science Foundation of China (51772258 and 21403184), the funding for the school-level research projects of the Yancheng Institute of Technology (xjr2021003), Natural Science Foundation of the Jiangsu Higher Education Institutions of China (Grant nos. 22KJD150007 and 22KJA430008), the Qinglan Project of Jiangsu Province, and the funding for the graduate research and practice innovation project of the Yancheng Institute of Technology (KYCX23_XZ008).

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Dongqi Ma and Wuyou Wang: conceptualization, methodology, writing—original draft. Qinzheng Wang: software. Yelan Dai: resources. Kai Zhu: investigation. Haocheng Xu: supervision. Cheng Yuan: data curation. Pengyu Dong: writing—review and editing. Xinguo Xi: writing—review and editing.

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Correspondence to Wuyou Wang.

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Dongqi Ma and Wuyou Wang contributed equally to this work and are regarded as joint first authors.

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Ma, D., Wang, W., Wang, Q. et al. A novel visible-light-driven Z-scheme C3N5/BiVO4 heterostructure with enhanced photocatalytic degradation performance. Environ Sci Pollut Res 31, 19687–19698 (2024). https://doi.org/10.1007/s11356-024-32086-7

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  • DOI: https://doi.org/10.1007/s11356-024-32086-7

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