Skip to main content

Photocatalytic ozonation for the degradation of tetradifon pesticide on Mn/TiO2 under visible light

  • Authors (legacy)
    Corresponding: sureshmskt@gmail.com
    Co-authors: Maddila S., Ndabankulu V.O. and Jonnalagadda S.B.
    Download PDF
  • gnest_01865_published.pdf
  • Paper ID
    gnest_01865
  • Paper status
    Published
  • Date paper submitted
  • Date paper accepted
  • Date paper online
DOI
https://doi.org/10.30955/gnj.001865
Abstract

The photocatalytic activity of Mn doped TiO2 for the ozonation of tetradifon pesticide in aqueous solution was studied. Various loadings of catalysts Mn/TiO2 (1%, 2.5% and 5%) was prepared and characterized by standard analytical techniques. Photocatalyzed ozonation with 2.5% Mn/TiO2 yielded 100% degradation and mineralization of tetradifon in 2.0 h under basic pH conditions. The extent of degradation of tetradifon pesticide and its mineralization were confirmed by GC-MS. For 10 mg/L of tetradifon, 0.1 g L−1 of catalyst was found to be the optimum for effective mineralisation. The reused experiment confirmed that Mn/TiO2 kept a good photocatalytic activity and stability, and it was a promising heterogeneous catalyst. The catalyst is fully recoverable and reusable multiple times with no loss of activity.

 

Keywords
Tetradifon Oxidation photocatalyst Mn/TiO2 Degradation Mineralization
Cite this article
Maddila, S., Ndabankulu, V. and Jonnalagadda, S. (2016) “Photocatalytic ozonation for the degradation of tetradifon pesticide on Mn/TiO2 under visible light”, Global NEST Journal, 18(2). Available at: https://doi.org/10.30955/gnj.001865.
PDF file
  • gnest_01865_published.pdf