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N-doped C-coated MoO2/ZnIn2S4 heterojunction for efficient photocatalytic hydrogen production

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Abstract

Designing a heterojunction photocatalyst to improve the separation efficiency of photogenerated electrons and holes is of great significance to improve the hydrogen production efficiency. In this work, we report a rational design to grow ZnIn2S4 on Mo-MOF-derived N-doped C-coated MoO2 (MOZIS), and it has excellent photocatalytic hydrogen production with triethanolamine (TEOA) as sacrificial agent. N-doped C improves the electron transport efficiency between MoO2 and ZnIn2S4. The systematic study shows that MOZIS has good properties to promote the effective separation and transfer of photocatalytic charges, which is attributed to the tight contact interface and good energy band structure between MoO2 and ZnIn2S4. The optimized nanocomposites have a high hydrogen production efficiency of 10.89 mmol·g−1 (4 h) under visible light. MOF-derived N-doped C-coated MoO2 is an effective strategy to improve the photocatalytic hydrogen production efficiency of ZnIn2S4.

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摘要

设计异质结光催化剂以提高光生电子和空穴的分离效率对提高制氢效率具有重要意义。在这项工作中，我们报告了一种合理的设计，在Mo-MOF衍生的N掺杂C包覆的MoO2上生长ZnIn2S4 (MOZIS), 它以TEOA为牺牲剂具有优异的光催化产氢性能。N掺杂C提高了MoO2和ZnIn2S4之间的电子传输效率系统研究表明，MOZIS具有良好的促进光催化电荷有效分离和转移的性能，这归因于MoO2和ZnIn2S4之间紧密的接触界面和良好的能带结构。优化后的纳米复合材料在可见光下具有10.89 mmol g−1(4 h) 的高产氢效率。MOF衍生的N掺杂C包覆MoO2是提高ZnIn2S4光催化产氢效率的有效策略。

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Acknowledgements

This study was financially supported by the Key Laboratory of Metallurgical Emission Reduction & Resources Recycling (Anhui University of Technology), Ministry of Education (No. JKF21-08), the Open Project of Engineering Research Center of Biofilm Water Purification and Utilization Technology of Ministry of Education (No. BWPU2021KF05), the National Natural Science Foundation of China (No. 62104003), the Natural Science Foundation of Anhui Province (No. 1908085QB75), Anhui Provincial Scientific and Technological Major Project (No. 18030801109), and the Opening Project of Engineering Technology Research Center of Anhui Education Department for Energy Saving and Pollutant Control in metallurgical process (No. GKF20-7).

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  1. Wei Dong and Shi-An Zhou have contributed equally to this work.

Authors and Affiliations

  1. Key Laboratory of Metallurgical Emission Reduction & Resources Recycling, Anhui University of Technology, Ministry of Education, Ma’anshan, 243032, China

    Wei Dong, Hong-Ming Long & Tie-Jun Chun

  2. School of Civil Engineering and Architecture, Anhui University of Technology, Ma’anshan, 243032, China

    Wei Dong

  3. School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma’anshan, 243032, China

    Yan Ma, Dian-Jun Chi, Rong Chen, Sheng-Jun Liu & Kui Zhang

  4. School of Energy and Environment, Anhui University of Technology, Ma’anshan, 243032, China

    Shi-An Zhou & Fu-Ping Qian

  5. School of Metallurgical Engineering, Anhui University of Technology, Ma’anshan, 243032, China

    Wei Dong, Hong-Ming Long & Tie-Jun Chun

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Dong, W., Zhou, SA., Ma, Y. et al. N-doped C-coated MoO2/ZnIn2S4 heterojunction for efficient photocatalytic hydrogen production. Rare Met. 42, 1195–1204 (2023). https://doi.org/10.1007/s12598-022-02196-7

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