The effect of natural zeolite with heat treated at structure and function of TiO_2 supported on zeolite

This paper studied synthesis of photocatalyst TiO_2 supported on natural zeolites, which were disposed in different temperature and effect of zeolite with heat treated at photocatalystic funtion. The resulting samples were characterized with such techniques as XRD, IR, cation-exchange capacity and specific surface area. The photocatalystic activities of these compound samples were evaluated in methyl orange solution irradiated under solar and by COD removal rate. The experimental results showed that zeolites disposed in different temperature affect structure and photocatalystic activity of TiO_2 supported on their surfaces. The syntheticsample of zeolite disposed with 1h under 200℃ has the best photocatalystic activity and specific surface area. And grain sizes of anatase on zeolite surfaces was about 16nm.