سال انتشار: ۱۳۸۷

محل انتشار: همایش بین المللی ژئولیت ایران

تعداد صفحات: ۶

نویسنده(ها):

m.s sadjadi – Department of Chemistry, Faculty of Basic Sciences, Sciences and Research Campus,
n Farhadyar – Department of Chemistry, Faculty of Basic Sciences, Sciences and Research Campus,
p Pourdayhimi – Department of Chemistry, Faculty of Basic Sciences, Sciences and Research Campus,

چکیده:

High efficiency of photocatalystic reaction has achieved by increasing the surface area of photocatalyst
by supporting TiO2 particles on porous materials. Among the various supports, zeolites have attracted more
interests due to their unique uniform pores and straight channels. Zeolites are crystalline microporous
aluminosilicates consisting of tetrahedral units producing open framework structures, which generate a
system of pores and cavities having molecular dimensions. Control of the crystal size of these support
materials is crucial to monitor adequately the catalytic activity or enhancement of the photocatalytic activity
of TiO2 and seems to be attractive in use of TiO2 fixed materials on this benign supports for practical
applications.
In this work, nano-sized ZSM-5 zeolite was synthesized from precursors containing aluminum sulphate as
alumina source and loaded then by TiO2 using tetra buthoxy titanium (TBT). As prepared material, nanosize
ZSM-5 loaded by TiO2 was investigated by using X-ray diffraction (XRD), Transmission electron
microscopy (TEM), Fourier transform infrared spectroscopy (FT- IR). Photocatalytic activity of the samples,
TiO2 loaded zeolite were finally evaluated by degrading of the methyl orange under irradiation of UV light.
The results showed that the nanosized ZSM-5 zeolite enhances the photocatalytic activity of TiO2 when
loaded on it.