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Bismuth vanadate/MXene (BiVO4/Ti3C2) heterojunction composite: enhanced interfacial control charge transfer for highly efficient visible light photocatalytic activity

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Abstract

We have synthesized BiVO4/Ti3C2 nanocomposite via a low-cost hydrothermal method and investigate its photocatalytic degradation activity against monoazo (methyl orange) and diazo dye (Congo red) in an aqueous solution under visible light. The physiochemical characterization exhibited that the addition of MXene in pristine BiVO4 nanocomposite led to an increase in specific surface area and reduction in optical band gap energy. MXene also helps in enhancing visible light response via a higher electron-hole pair generation rate and long lifetime. The synthesized BiVO4/Ti3C2 heterojunction composite exhibited 99.5 % degradation efficiency within 60 min for Congo red and 99.1 % for methyl orange solution in 130 min owed to a large specific surface area (1.79 m2/g), reduced band gap (1.99 eV), and low recombination rate of charge carriers. The chemical mechanism for BiVO4/Ti3C2 nanocomposite proposes that Ti3C2 role-plays as electron capture because of the higher potential of MXenes, tuning band gap energy which paves the way to excellent photocatalytic action. This work opens a new basis for developing Ti3C2 based promising and inexpensive co-catalyst for efficient solar utilization in photocatalytic-related applications in the future.

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Acknowledgements

Dr. Muhammad Munir Sajid acknowledges Prof. Zhengjun Zhang (Tsinghua University, Beijing, China) for supporting characterization techniques and keen interest.

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Funding

This work was financially supported by the State Scholarship Fund of China Scholarship Council (No. 201808410144), the National Natural Science Foundation of China (No. 51202107), and the Foundation of Henan Educational Committee (No. 20A480003).

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Authors and Affiliations

  1. School of Physics, Henan Normal University, Xinxiang, China

    Muhammad Munir Sajid & Haifa Zhai

  2. College of Materials Science and Engineering, Henan Normal University, Xinxiang, China

    Muhammad Munir Sajid & Haifa Zhai

  3. Institute for Advanced Study, Shenzhen University, Shenzhen, 518060, Guangdong, China

    Sadaf Bashir Khan

  4. Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, Guangdong, China

    Sadaf Bashir Khan

  5. Department of Physics, University of Agriculture, Faisalabad, 38000, Pakistan

    Yasir Javed

  6. Department of Physics, Government College University Allama Iqbal Road, Faisalabad, 38000, Pakistan

    Nasir Amin & Naveed Akhtar Shad

  7. Advanced Key Laboratory for New Ceramics, School of Materials Science & Engineering, Tsinghua University, Beijing, 100084, China

    Zhengjun Zhang

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  1. Muhammad Munir Sajid
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Contributions

Dr. Muhammad Munir Sajid did the experiments, data collection, and draft preparations. Dr. Sadaf Bashir Khan proceed with the conceptualization, writing-reviewing, and editing. Dr. Yasir Javed and Dr. Nasir Amin did the validation. Prof. Zhengjun Zhang provided the material and equipment facilities. Dr. Naveed Akhtar Shad did administration work, and Dr.Haifa Zhai did the funding acquisition.

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Sajid, M.M., Khan, S.B., Javed, Y. et al. Bismuth vanadate/MXene (BiVO4/Ti3C2) heterojunction composite: enhanced interfacial control charge transfer for highly efficient visible light photocatalytic activity. Environ Sci Pollut Res 28, 35911–35923 (2021). https://doi.org/10.1007/s11356-021-13315-9

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