• Title of article

    Visible light driven photooxidation of phenol on TiO2/Cu-loaded carbon catalysts

  • Author/Authors

    Andrade، نويسنده , , Marta A. and Carmona، نويسنده , , Rocio J. and Mestre، نويسنده , , Ana S. and Matos، نويسنده , , Juan and Carvalho، نويسنده , , Ana P. and Ania، نويسنده , , Conchi O.، نويسنده ,

  • Issue Information
    روزنامه با شماره پیاپی سال 2014
  • Pages
    10
  • From page
    183
  • To page
    192
  • Abstract
    The photocatalytic performance of titania/Cu-carbon composites was investigated towards phenol degradation under visible light. The approach consisted on the incorporation of the transition metal on the carbon component of the hybrid composite via impregnation of the carbon precursor with a metal salt followed by activation. Data showed a homogeneous dispersion of copper particles within the carbonaceous matrix, predominantly as copper (II) species. The synthesized carbons displayed a well developed nanoporous texture, although comparatively the impregnation of copper caused a marked inhibition of the textural development of the carbon precursor. The phenol photooxidation tests carried out on 1:1 titania/carbon composites showed the outstanding role of copper under visible light, with an increased efficiency in terms of phenol conversion, mineralization degree and degradation rate. This is important, since similar overall conversions were obtained with half of the amount of the photoactive semiconductor (1:1 composites). The beneficial effect of copper loading was also observed in the marked regioselectivity towards the preferential formation of catechol. Furthermore, the copper-loaded photocatalyst was found to be stable with no lixiviation or photorreduction of the copper species after illumination.
  • Journal title
    Carbon
  • Serial Year
    2014
  • Journal title
    Carbon
  • Record number

    1928009