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Green Emissive Molybdenum Nanoclusters for Selective and Sensitive Detection of Hydroxyl Radical in Water Samples

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Abstract

In this work, Cassia tora (C. tora) have been used as a template to synthesize green fluorescent C. tora molybdenum nanoclusters (C. tora-MoNCs) through a green chemistry approach. These C. tora-MoNCs showed a quantum yield (QY) of 7.72% and exhibited a significant emission peak at 498 nm when excited at 380 nm. The as-prepared C. tora-MoNCs had an average size of 3.48 ± 0.80 nm and showed different surface functionality. The as-synthesized C. tora-MoNCs were successfully identified the hydroxyl radical (•OH) via a fluorescence quenching mechanism. Also, fluorescence lifetime and Stern-Volmer proved that after the addition of •OH radicals it was quenched the fluorescence intensity via a static quenching mechanism. The limit of detection is 9.13 nM, and this approach was successfully utilized for sensing •OH radicals in water samples with a good recovery rate.

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Data Availability

No datasets were generated or analysed during the current study.

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Acknowledgments

This work was financially supported by the Department of Science and Technology, Government of India (EMR/2016/002621/IPC). SVA sincerely acknowledges the Director, SVNIT, Surat, India for providing infrastructure and facilities to carry out this work.

Funding

Department of Science and Technology, Ministry of Science and Technology, India, EMR/2016/002621/IPC, EMR/2016/002621/IPC.

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Authors and Affiliations

  1. Department of Chemistry, Sardar Vallabhbhai National Institute of Technology, 395 007, Surat, Gujarat, India

    Vibhuti Atulbhai Sadhu & Suresh Kumar Kailasa

  2. ASPEE Shakilam Biotechnology Institute, Navsari Agricultural University, 39500, Surat, Gujarat, India

    Sanjay Jha

  3. Department of Chemistry, Research Institute of Chem-Bio Diagnostic Technology, Chung-Ang University, 84, Heukseok-ro, Dongjak-gu, 06974, Seoul, Republic of Korea

    Tae Jung Park

Authors
  1. Vibhuti Atulbhai Sadhu
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  2. Sanjay Jha
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Contributions

Vibhuti Atulbhai Sadhu: Methodology, Formal analysis, Writing—Review and Editing. Sanjay Jha: Material preparation, Formal analysis, Writing—Review and Editing. Tae Jung Park: Formal analysis, Writing—Review and Editing. Suresh Kumar Kailasa: Conception and design, Data collection and analysis, Formal analysis and Investigation, Software, Editing and Funding.

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Correspondence to Suresh Kumar Kailasa.

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Sadhu, V.A., Jha, S., Park, T.J. et al. Green Emissive Molybdenum Nanoclusters for Selective and Sensitive Detection of Hydroxyl Radical in Water Samples. J Fluoresc (2024). https://doi.org/10.1007/s10895-023-03578-5

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