Abstract
In this contribution we report on the synthesis of n-type Bismuth vanadate (BiVO4) nanorods prepared via the use of aqueous extracts of Callistemon viminalis. X-ray diffraction analysis confirmed the formation of highly crystalline monoclinic BiVO4 nanorods post annealing of the Bismuth vanadate precursor powder at 500 °C. Scanning Electron Microscopy and High Resolution Transmission Electron Microscopy showed that BiVO4 nanorods have a high aspect ratio. Using UV-Vis absorption measurements the optical band gap of the nanorods is estimated to be 2.4 eV which makes the bio-synthesized BiVO4 powder a good candidate for sunlight driven photocatalysis.
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Mohamed, H.E.A., Sone, B.T., Dhlamini, M.S. et al. Bio-synthesis of BiVO4 Nanorods Using Extracts of Callistemon viminalis. MRS Advances 3, 2479–2486 (2018). https://doi.org/10.1557/adv.2018.318
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DOI: https://doi.org/10.1557/adv.2018.318