Abstract
In the photocatalytic process, mixed-phase TiO2 tends to have more carrier transport channels compared with single-phase TiO2, which can further accelerate the separation of photogenerated carriers. In this study, biphasic TiO2 nanofibers containing both rutile and anatase phases were synthesized by electrostatic spinning technique. Subsequently, a variety of biphasic TiO2/Ag3PO4 nanofiber photocatalytic materials with different ratios were prepared by combining the in situ growth process. The test results confirm that not only heterojunctions are formed between the components of the composites, but also the optical properties are improved. When the content of Ag3PO4 was 25 wt%, the composite showed excellent photocatalytic activity for both rhodamine B (RHB) and methyl orange (MO). In addition, the main active substances and stability of the composite were investigated by doing active agent capture experiments and stability tests, and a reasonable photocatalytic mechanism was proposed on the basis of the relevant test results.
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The data that support the findings of this study are available on request from the corresponding author. The data are not publicly available due to privacy or ethical restrictions.
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Acknowledgements
This study was supported by Gansu Provincial Natural Science Funds (Grant No. 22JR5RA154), Gansu Provincial Education Science and Technology Innovation Fund (Grant No. 2022B-93), and Northwest Normal University Young Teachers’ Research Ability Enhancement Program (Grant No. NWNU-LKQN2022-17). Besides, we would like to thank Tao Lv for providing us with help in sample testing.
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HD, HS, and TW were the experimental designers and executors of the experimental study, completed the data analysis, and wrote the first draft of the paper; HZ and SL were involved in the experimental design and analysis of the experimental results; XZ was involved in the analysis and collation of the literature. All authors read and agreed on the final text.
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Ding, H., Shi, H., Wang, T. et al. Study on the design of biphasic TiO2/Ag3PO4 nanofiber semiconductor photocatalysts and its photocatalytic performance for RHB and MO. J Mater Sci: Mater Electron 34, 1220 (2023). https://doi.org/10.1007/s10854-023-10653-x
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DOI: https://doi.org/10.1007/s10854-023-10653-x