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Solar photocatalytic abatement of pollutant over BiOBr derived from in situ synthesis of bismuth glass

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Abstract

Here, BiOBr semiconductor materials through a simple precipitation method for the degradation of Rhodamine (RhB) and Tetracycline (TC) under visible light were synthesized by different bismuth sources. Compared with Bi2O3 and Bi(NO3)3·5H2O as the bismuth source, the BiOBr photocatalytic material with 3D hierarchical structure synthesized from bismuth glass had the highest degradation efficiency of 94.17% and 70.56% for RhB and TC under visible light with 120 min illumination, attributed to high specific surface area and rich oxygen vacancies (OVs) which can provide more active sites and improve the separation efficiency of electrons and holes. The basic structure of BiOBr has been confirmed by XRD and SEM, the specific surface area of BiOBr has been explored through BET, the detection of OVs is through ESR and UV–Vis DRS was used to observe the light absorption of the photocatalyst and the recombination of electron/hole pairs was detected by photoluminescence (PL) spectrum. This work has proposed a new strategy that can be used to design effective photocatalysts for solar energy utilization and environmental purification.

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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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Contributions

All authors contributed to the study conception and design. Material preparation, data collection, and analysis were performed by WD, YS, TX. The first draft of the manuscript was written by WD and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Correspondence to Tianyi Xie.

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I certify that the Wenjing Dong and other co-authors of the article ‘‘Solar photocatalytic abatement of pollutant over BiOBr derived from in situ synthesis of bismuth glass’’ have no conflict of interest, financial or otherwise.

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Dong, W., Si, Y. & Xie, T. Solar photocatalytic abatement of pollutant over BiOBr derived from in situ synthesis of bismuth glass. J Mater Sci: Mater Electron 34, 557 (2023). https://doi.org/10.1007/s10854-023-09893-8

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  • DOI: https://doi.org/10.1007/s10854-023-09893-8

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