The capture and use of solar energy for the destruction of organic pol
lutants in aqueous media has been studied. The sunlight is captured by
ferrioxalate which, in the presence of hydrogen peroxide, generates h
ydroxyl radicals. The latter reacts with and oxidizes organic molecule
s present in aqueous media. The efficiency of this new process for the
destruction of organic molecules in tap water is at least 25 times gr
eater than sunlight/TiO2/H2O2, which is a known process for solar deto
xification. Copyright (C) 1996 Elsevier Science Ltd.