Preparation and catalytic property study of a novel kind of suspended photocatalyst of TiO 2-activated carbon immobilized on silicone rubber film

Abstract

A new suspended photocatalyst, TiO 2 and activated carbon (AC) particles immobilized on silicone rubber (SR) film, was prepared using a novel method and its photocatalytic activity on the photodegradation of acridine dye and phenol in aqueous solution was tested. Silicone rubber film used as the support has many advantages: it is transparent to light, easily to be recycled and may be suspended in the aqueous solution to increase the collision possibility of pollutants with TiO 2 photocatalysts. The activated carbon used as adsorbent helps to accelerate the degradation of organic substrates. This immobilized hybrid catalyst 90TAS (90 wt% TiO 2–10 wt% AC/SR) is efficient in photoinduced mineralization of organic substrates at dilute concentrations and can be recycled easily.