Photocatalysis of TiO2 nanoparticles supported on natural zeolite

In order to achieve rapid and efficient decomposition of organic pollutants and put it to wastewater treatment, the composite materials of nanoTiO(2) powder immobilised on zeolite were synthesised. Moreover, the effects of technology parameters, such as TiO2 loading content, calcining temperature and ultrasonic treatment, on photocatalytic reactivity were examined. The proposed research investigates the following aspects, which are important in understanding the preparation and application of TiO2/zeolite composite photocatalysts: nanosize TiO2 particles were supported on natural zeolite by a simple sol-gel method in order to maximise the photocatalytic performance of the nanosize TiO2 as well as reduce the preparation cost; and the effects of TiO2 loading content, calcining temperature and ultrasonic treatment on photocatalytic reactivity were researched. The novel aspect of the proposed photocatalysts is the combination of nanosize TiO2 particles and natural zeolite by a simple sol-gel method. The product of the research can be used in wastewater treatment resolving the difficulties of TiO2 recovery and surface contact based photocatalytic reaction.