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The enhanced photocatalytic reduction of uranium(VI) by ZnS@g-C3N4 heterojunctions under sunlight

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Abstract

The photocatalytic reduction of soluble \({\text{UO}}_{2}^{2 + }\) from radioactive wastewater is becoming an effective method to reduce radioactive pollution, while available catalysts are considerable limitation. Herein, the ZnS@g-C3N4 (ZSGCN) heterojunctions complexes were compounded as catalysts to reduce \({\text{UO}}_{2}^{2 + }\). The results from TEM, XRD, XPS, EIS, DRS and PL showed that the ZnS nanoparticles combined with graphite carbon nitride (GCN), which is the construction of heterojunctions broadened the absorption range of sunlight. The ZSGCN-5 presented the optimal photocatalytic reduction activity to \({\text{UO}}_{2}^{2 + }\), which was 4.34 times than that of pristine GCN. The ZSGCN-5 heterojunction becomes a promising photocatalyst for radioactive environment remediation.

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Acknowledgements

This work was financially supported by the National Natural Science Foundation of China (21866004, 21866003, 22066003, 22076022, 21906019), the Defense Industrial Technology Development Program (JCKY2019401C004), the Open Fund of Jiangxi Province Key Laboratory of Synthetic Chemistry (JXSC202012).

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Authors and Affiliations

  1. State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, Jiangxi, 330013, China

    Fan Wu, Zhibin Zhang, Zhongping Cheng, Runze Zhou, Yuling Lin, Yuhui Liu, Youqun Wang, Xiaohong Cao & Yunhai Liu

  2. Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, Jiangxi, 330013, China

    Zhibin Zhang

  3. Naval Logistic Academy, Tianjin, 300450, China

    Mingguang Liu

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  1. Fan Wu
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Correspondence to Zhibin Zhang, Mingguang Liu or Yunhai Liu.

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Wu, F., Zhang, Z., Cheng, Z. et al. The enhanced photocatalytic reduction of uranium(VI) by ZnS@g-C3N4 heterojunctions under sunlight. J Radioanal Nucl Chem 329, 1125–1133 (2021). https://doi.org/10.1007/s10967-021-07784-y

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  • DOI: https://doi.org/10.1007/s10967-021-07784-y

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