Photocatalytic oxidation of toluene over TiO2 catalysts supported on glassfiber

Titania-impregnated photocatalysts supported on glass fiber (GF) were prepa red and employed in the photocatalytic oxidation of toluene. Amorphous tita nia sol (ATS) prepared ft-om titanium isopropoxide was useful to impregnate titania on glass fiber in the shape of a thin film. TiO2/GF catalysts prep ared by using the ATS showed better stability against water and vibration, but lower catalytic activity in the photo-oxidation of toluene compared to crystalline anatase powder (CAP) impregnated catalyst. Photocatalytic activ ity of the ATS catalyst was considerably enhanced by the addition of hydrog en peroxide, resulting in high activity comparable to that of the CAP catal yst.