Abstract
In this study, we report the synthesis of visible light active monoclinic structured bismuth vanadate (m-BiVO4) nanosheets (2D) by facile hydrothermal method. The morphology of the synthesized sample was governed by sodium dodecyl benzene sulfonate (SDBS) surfactant. Prepared samples were investigated by the characterization techniques such as ultraviolet visible (UV–Vis.) spectroscopy, fourier transform infra-red (FTIR) spectroscopy, x-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), and Raman spectroscopy. Monoclinic scheelite structure (m-BiVO4) was confirmed by XRD studies. The estimated direct band gap energy (Eg) 2.38 eV and monoclinic crystalline phase (XRD) clearly demonstrates a good visible light driven photocatalytic activity. The two-dimensional (2D) nanosheets of m-BiVO4 showed enhanced photocatalytic activity as studied by degradation efficiency (96% in 150 min) towards malachite green (MG) dye under natural sunlight irradiation in comparison with the synthesized BiVO4 nanoparticles. The analysis of all the measurements proposed that the nanosheets morphology with large surface area is an important factor in the amplification of photocatalytic reactions in m-BiVO4 nanosheets.
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Acknowledgements
Dr. Manika Khanuja (one of the authors) is appreciative of Science and Engineering Research Board [(SERB) (No. ECR/2017/001222)] for their support. The use of characterization facility at Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia, New Delhi, is gratefully acknowledged.
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Jahan, F., Ashraf, W., Siddiqui, A.M., Khanuja, M. (2023). Enhanced Photocatalytic Activity of Hydrothermally Synthesized Nanostructured Monoclinic BiVO4 Nanosheets. In: Khan, Z.H., Jackson, M., Salah, N.A. (eds) Recent Advances in Nanotechnology. ICNOC 2022. Springer Proceedings in Materials, vol 28. Springer, Singapore. https://doi.org/10.1007/978-981-99-4685-3_35
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DOI: https://doi.org/10.1007/978-981-99-4685-3_35
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