Catalytic wet peroxide oxidation over mixed (Al-Fe) pillared clays

Mixed (Al-Fe) pillared clays are very efficient solid catalysts for oxidati on of organic compounds in water by hydrogen peroxide. We have shown that i n rather mild experimental conditions (atmospheric pressure, T less than or equal to 70 degrees C) and with a low excess (20%) of hydrogen peroxide, p henol was rapidly converted, mainly to CO without significant catalyst leac hing, The (Al-Fe) pillared clay catalyst (called FAZA) can be used several times without any change of its catalytic properties. According to the low leaching observed and a previous Mossbauer spectroscopy study, the iron spe cies appear to be strongly bonded to the aluminium pillars, (C) 2000 Elsevi er Science B.V. All rights reserved.