ABSTRACT
The semi conductive films contained 10 and 30% of TiO2 in titania/silica nanocomposite were synthesized by sol-gel method using concentrated anatase titania colloid. Acridine Yellow (AY) was adsorbed onto the surface from its aqueous solution. The film with adsorbed AY was covered by polyepoxypropylcarbazole(PEPC) dissolved in benzene. The semiconduc- tor/dye/polymer composites were tested for the stability in several solvents (water, ethanol/water mixtures and pure ethanol). The amount of adsorbed AY as well the concentration of PEPC influenced on the level of desorbed AY from the composites. Photo catalytic performance in the process of dichromate ions reduction and tetracycline degradation under UV and visible light was performed. Among tested materials, the most perspective photo catalytic system was the composite containing 10% TiO2/SiO2/AY/PEPC.
