• Title of article

    Enhancement of TiO2-photocatalyzed organic transformation by ZnO and ZnS. Oxidation of diphenylamine

  • Author/Authors

    Karunakaran, C. Annamalai University - Department of Chemistry, India , Karuthapandian, S. Annamalai University - Department of Chemistry, India

  • From page
    32
  • To page
    38
  • Abstract
    TiO2 anatase photocatalyzes the oxidative transformation of diphenylamine (DPA) to Nphenyl- p-benzoquinonimine (PBQ) in ethanol. The PBQ formation increases with increase of [DPA], TiO2-loading, airflow rate and light intensity. The catalyzed formation of PBQ is larger with UV-C light illumination than with UV-A light illumination. The catalyst is recyclable. The photocatalytic reaction mechanism has been proposed and the kinetic parameters deduced. ZnO and ZnS enhance the TiO2-photocatalyzed DPA oxidation suggesting interparticle charge transfer in mixed semiconductors.
  • Keywords
    Photocatalysis , Semiconductor , Kinetic law , Interparticle charge transfer
  • Journal title
    Egyptian Journal Of Basic an‎d Applied Sciences
  • Journal title
    Egyptian Journal Of Basic an‎d Applied Sciences
  • Record number

    2596834

    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=10&DC=2596834