Controlled construction of NaNbO3@g-C3N4 composites and their piezo-photocatalytic properties

SUN Shubo; YU Haihan; LI Qiang; GE Shenguang; JIANG Congcong; WANG Dan; ZHANG Li'na; CHENG Xin; GAO Chaomin

doi:10.13801/j.cnki.fhclxb.20220415.001

Volume 40 Issue 3

Mar. 2023

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Article Navigation > Acta Materiae Compositae Sinica > 2023 > 40(3): 1534-1540

SUN Shubo, YU Haihan, LI Qiang, et al. Controlled construction of NaNbO3@g-C3N4 composites and their piezo-photocatalytic properties[J]. Acta Materiae Compositae Sinica, 2023, 40(3): 1534-1540. doi: 10.13801/j.cnki.fhclxb.20220415.001

Citation:

SUN Shubo, YU Haihan, LI Qiang, et al. Controlled construction of NaNbO₃@g-C₃N₄ composites and their piezo-photocatalytic properties[J]. Acta Materiae Compositae Sinica, 2023, 40(3): 1534-1540. doi: 10.13801/j.cnki.fhclxb.20220415.001

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Controlled construction of NaNbO₃@g-C₃N₄ composites and their piezo-photocatalytic properties

doi: 10.13801/j.cnki.fhclxb.20220415.001

1.
Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, Jinan 250022, China
2.
School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
3.
China United Cement Pingyi CO., LTD., Linyi 276000, China
4.
Institute for Advanced Interdisciplinary Research, University of Jinan, Jinan 250022, China

Funds: National Natural Science Foundation of China (51872121; 22104043; 51902129); Taishan Scholars Program; Case-by-Case Project for Top Outstanding Talents of Jinan; Project of "20 Items of University" of Jinan (2018 GXRC001); 111 Project of International Corporation on Advanced Cement-based Materials (D17001)

Received Date: 2022-02-24
Accepted Date: 2022-04-04
Rev Recd Date: 2022-03-24

Available Online: 2022-04-17

Publish Date: 2023-03-15

Abstract

Abstract

Facilitating the efficient separation of carriers in photocatalytic processes has always been a problem for researchers. Recently, the use of piezoelectric effect as an effective strategy to enhance photocatalytic process from inhibitting the recombination of electrons and holes has attracted great interest. Here, we prepared 1D NaNbO₃ nanorods coated with g-C₃N₄ heterojunction materials as the object to investigate the performance enhancement mechanism in the piezo-photocatalytic process by applying an ultrasonic field to introduce the piezoelectric effect. The microscopic morphology and bonding of the materials were investigated through SEM and XPS characterization. The results show that after the introduction of the piezoelectric effect using ultrasonic, NaNbO₃@g-C₃N₄ exhibites a higher H₂ evolution rate in the piezo-photocatalytic process (1.02 mmol·g⁻¹·h⁻¹) than in the single photocatalytic process (0.49 mmol·g⁻¹·h⁻¹), indicating that the constructed NaNbO₃@g-C₃N₄ heterojunction materials with the support of piezoelectric effect greatly promote the separation of carriers in the photocatalytic process, inhibite their complexation and improve the photocatalytic performance. In addition, based on the data analysis, the mechanism of piezo-photocatalytic coupling effects is proposed for the design and development of highly efficient piezoelectric photocatalysts.
- NaNbO₃@g-C₃N₄,
- heterojunction,
- piezo-photocatalytic,
- charge separation,
- coupling effects
Long Abstrsct
Innovation Points

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References(23)

References

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