Dhanesh Tiwary

Indian Institute of Technology (BHU), India

Title: Improved Photocatalytic performance of WO3/Ag/BiVO toward the degradation of methylene blue

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Biography

Abstract

The photocatalytic removal of organic pollutants from the waste water is an economic and ecofriendly technique. So, in this work we have successfully synthesized BiVO4/Ag/WO3 (ABW) nanocomposite photocatalysts which is highly efficient towards the photocatalytic removal of Methylene blue (MB) dye. The synthesized photocatalysts was characterized by BT-XRD, TEM, FESEM and UV-DRS techniques. The photocatalytic degradation of MB over the surfaces of the samples was carried out under illumination of LED light. In our study we have found that WO3/Ag/BiVO4 nanocomposite is the most effective photocatalyst as it removes almost 99% of the dye in 150 min which is much greater than that removes either by the pure WO3, BiVO4 or Ag/WO3 samples. The reason of the improved activity of WO3/Ag/BiVO4 nanocomposites may be attributed due to the restrained rate of charge recombination and improved redox potential of the nanocomposite.