Photocatalytic Degradation of DIPA Using Bimetallic Cu-Ni/TiO2Photocatalyst under Visible Light Irradiation Academic Article uri icon

abstract

  • Bimetallic Cu-Ni/TiO2photocatalysts were synthesized using wet impregnation (WI) method with TiO2(Degussa-P25) as support and calcined at different temperatures (180, 200, and 300°C) for the photodegradation of DIPA under visible light. The photocatalysts were characterized using TGA, FESEM, UV-Vis diffuse reflectance spectroscopy, fourier transform infrared spectroscopy (FTIR) and temperature programmed reduction (TPR). The results from the photodegradation experiments revealed that the Cu-Ni/TiO2photocatalysts exhibited much higher photocatalytic activities compared to bare TiO2. It was found that photocatalyst calcined at 200°C had the highest photocatalyst activities with highest chemical oxygen demand (COD) removal (86.82%). According to the structural and surface analysis, the enhanced photocatalytic activity could be attributed to its strong absorption into the visible region and high metal dispersion.

publication date

  • 2014

number of pages

  • 7

start page

  • 1

end page

  • 8

volume

  • 2014