سال انتشار: ۱۳۸۷

محل انتشار: همایش بین المللی ژئولیت ایران

تعداد صفحات: ۶

نویسنده(ها):

E. A. Amereh – Faculty of Chemistry, Iran University of Science and Technology, Tehran, IRAN
s afshar – Faculty of Chemistry, Iran University of Science and Technology, Tehran, IRAN
l Vafaee – Faculty of Chemistry, Iran University of Science and Technology, Tehran, IRAN

چکیده:

TiO2 was supported on a porous material, like NaY zeolite, by using sol-gel method and using TiCl4 as
precussor. Characterization of synthesized samples by SEM shows that nano titanium species are located on
the external surface of the zeolite. Nano titanium species bound to the framework through Ti–O–Si bonds
were also observed by IR analysis. The XRD patterns show that the supported TiO2 are crystallized in anatase
form, and the intensity of the X-ray diffraction peaks increased with increasing TiO2 loading. These materials
are used as photocatalyst for degradation of acetophenone and toluene to H2O and CO2. The effect of some
factors such as the pH of the photodegradation reaction, time of UV irradiation, amount of TiO2 loading and
amount of catalyst used were investigated. It can be concluded from the data obtained in this work that
photocatalytic activity of the nano titanium oxide based on zeolite NaY works better than nano titanium oxide
powder alone, when using as photocatalyst for degradation of acetophenone and toluene.