سال انتشار: ۱۳۸۷

محل انتشار: همایش بین المللی ژئولیت ایران

تعداد صفحات: ۶

نویسنده(ها):

Masoumeh Khatamiana – aInorganic Department, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
Zahra Alajib – aInorganic Department, Faculty of Chemistry, University of Tabriz, Tabriz, Iran

چکیده:

Nanometric ZnO clusters confined in HZSM-5 were prepared with different ZnO loadings and
characterized by Diffuse reflectance spectroscopy (DRS), XRD, TEM. The photocatalytic degradation of 4-
nitrophenol in aqueous solution was carried out by using HZSM-5 and supported ZnO on HZSM-5 under
UV light. The experimental results demonstrated that the presence of zeolite enhances adsorption as well as
degradation of 4-nitrophenol.The higher activity of ZnO /HZSM-5 is mainly due to fine dispertion of ZnO
and hydrophobicity of support. It is suggested that encapsulating the semiconductor cluster in the porous
support is a possible way to inhibit or to retard the electron-hole recombination.