Bio-synthesis of BiVO4 Nanorods Using Extracts of Callistemon viminalis
Published online by Cambridge University Press: 02 April 2018
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.
- MRS Advances , Volume 3 , Issue 42-43: African Materials Research Society 2017 , 2018 , pp. 2479 - 2486
- Copyright © Materials Research Society 2018