Super-oleophilicity Co-doping Co~(2+)/F~-/TiO_2 one-dimensional nanotubes for photocatalytic denitrification of light oil

摘要

In this study, a simple hydrothermal synthesis method was adapted for the preparation of Co-doping Co~(2+)/F~-/TiO_2 nanotubes photocatalyst, and the micro-nano structure of catalysts prepared by biomimetic technology which makes the catalyst have super-oleophilicity property. Co~(2+)/F~-/TiO_2 revealed improved photocatalytic performance for denitrification of light oil compared to single TiO_2 photocatalysts. The enhance of photocatalytic activity can be attributed to narrowing the band gap, increasing the light response wavelength and exposing more highly active crystal surfaces due to synergistic effects of Co~(2+) and F~- in the photocatalyst.