Abstract
In this study, MoS2 and SnWO4 nanocompounds were synthesized by a simple hydrothermal method. Further, three different MoS2/SnWO4 nanocomposites, MSSW-5, MSSW-10, and MSSW-15 were synthesized using MoS2 with various amounts of SnWO4 by a solvothermal method. The crystal phases of the synthesized nanostructures were confirmed by X-ray diffraction (XRD) analysis. Scanning electron microscopy and transmission electron microscopy results demonstrated that the SnWO4 nanoplates were deposited on the MoS2 nanosheets, forming the MoS2/SnWO4 heterostructure. A sufficient band alignment was achieved for the MoS2/SnWO4 nanocomposites owing to the formation of strong interfaces at the heterostructure. The prepared samples were investigated for the degradation of tetracycline (TC) under visible light. MSSW-10 demonstrated the best photocatalytic activity (96.47%) for the degradation of TC under visible light within 80 min. The rate constant of the MSSW-10 nanocomposite is approximately 6.89 and 9.07 times higher than that of pristine MoS2 and SnWO4, respectively. Moreover, the prepared photocatalyst exhibited good reusable properties and high stability. Thus, the MoS2/SnWO4 nanocomposites with a suitable bandgap promoted the efficient electron-hole pair carrier transfer, contributing to the efficient photocatalytic activity.
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The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request. All data used during this study are included in this manuscript and Supplementary Information.
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Acknowledgements
The National Research Foundation of Korea (NRF) grant funded by the government of Korea (MSIT) (No. 2022R1A2C1004283) provided funding for this study, and the authors are grateful to the Core Research Support Center for Natural Products and Medical Materials (CRCNM) at Yeungnam University for their support.
Funding
This study was supported by National Research Foundation of Korea, (Grant Number 2022R1A2C1004283).
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BS: Conceptualization, Methodology, Writing—original draft, Visualization, Investigation, Writing—review and editing. RA: Conceptualization, Formal analysis, Data curation, Writing—original draft, Visualization, Investigation, Writing—review and editing. THO: Formal analysis, Data curation, Supervision, Resources, Writing—review & editing.
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Shaik, B., Atla, R. & Oh, T.H. Synthesis of MoS2/SnWO4 nanocomposite heterostructures: photocatalytic degradation of tetracycline upon visible-light irradiation. J Mater Sci: Mater Electron 34, 853 (2023). https://doi.org/10.1007/s10854-023-10285-1
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DOI: https://doi.org/10.1007/s10854-023-10285-1