Catalysis Today, Vol.161, No.1, 3-7, 2011
Preliminary study of the use of beta-SiC foam as a photocatalytic support for water treatment
In this study we used a medium sized surface area of beta-SiC foam, being a three-dimensional medium for the preparation of photocatalytic materials. The study's objective was to optimize the deposition of TiO(2) photocatalyst on the beta-SiC Foam by using the sol-gel process. To this end, various parameters were applied via varying temperatures of the thermal treatment; variation in the ratio of acetic acid/Ti of sol-gel; and differing level of oxidation of the beta-SiC support. The relative performances of the various prepared materials were evaluated against their ability to degrade an aqueous solution of Diuron (herbicide) under UV irradiation. As an outcome, we obtained an efficient TiO(2)/beta-SiC material for photocatalytic degradation of organic compounds in water. (C) 2010 Elsevier B.V. All rights reserved.