Formation of nitrophenols upon UV irradiation of phenol and nitrate in aqueous solutions and in TiO2 aqueous suspensions

Chemosphere. 2001 Jul;44(2):237-48. doi: 10.1016/s0045-6535(00)00170-3.

Abstract

The formation of nitrophenols was studied as a consequence of ultra violet (UV) irradiation of aqueous solutions of phenol and nitrate in the range of pH 1-12. The study was performed both in homogeneous phase and in the presence of water-suspended TiO2. The effects of pH, dissolved oxygen and 2-propanol as .OH scavenger have been evaluated. A reaction mechanism is proposed, based on the experimental results.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Free Radical Scavengers / chemistry
  • Hydrogen-Ion Concentration
  • Nitrates / chemistry*
  • Nitrophenols / chemistry*
  • Oxidants, Photochemical / chemistry
  • Photochemistry
  • Titanium / chemistry
  • Ultraviolet Rays
  • Water Pollutants, Chemical

Substances

  • Free Radical Scavengers
  • Nitrates
  • Nitrophenols
  • Oxidants, Photochemical
  • Water Pollutants, Chemical
  • titanium dioxide
  • Titanium