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Gas-sculpted g-C3N4 for efficient photocatalytic reduction of U(VI)

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Abstract

Photocatalytic reduction of soluble U(VI) into insoluble U(IV) with g-C3N4 is considered to be an effective strategy to remove uranium from waste water. However, the traditional g-C3N4 suffers from the defects of low specific surface area and serious recombination rate of photo-induced electrons and holes. In this work, a sample strategy of synthesize porous g-C3N4 was obtained by sculpturing with HCl which was derived from NH4Cl. Furthermore, with the method of gas-sculpturing exhibit higher photocatalytic performance, which is 4.8 times higher than that of bulk g-C3N4. The method of gas-sculpturing suggests a new and promising candidate for constructing effective photocatalysts.

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Acknowledgements

We thank the National Natural Science Foundation of China (Nos. 11765002, 21966003), the National Natural Science Foundation of Jiangxi (No. 20181BAB203019) and Resaerch Foundation for Advanced Talents (No. 2400100185) for financial support. We also appreciate the instrumentation for the experimental testing provided by other research groups in the East China University of Technology.

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Authors and Affiliations

  1. State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, 330013, People’s Republic of China

    Ziqiang Li, Zongbo Xie, Bo Wang, Junyuan Gong, Jinming Xue & Zhanggao Le

  2. School of Nuclear Science and Engineering, East China University of Technology, Nanchang, 330013, People’s Republic of China

    Ziqiang Li & Junyuan Gong

  3. Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and Devices, School of Chemistry, Biology and Materials Science, East China University of Technology, Nanchang, 330013, People’s Republic of China

    Bo Wang

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  1. Ziqiang Li
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Li, Z., Xie, Z., Wang, B. et al. Gas-sculpted g-C3N4 for efficient photocatalytic reduction of U(VI). J Radioanal Nucl Chem 326, 1805–1817 (2020). https://doi.org/10.1007/s10967-020-07458-1

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