PHOTOCATALYTIC REDUCTION OF METHYLENE BLUE ON THE HETEROSTRUCTURAL MATERIALS BASED ON TITANIUM DIOXIDE WITH BISQINOCYANINE PIGMENT

Igor KOBASA, Nataliya HUSYAK, Sonia GUTT

Abstract

New light sensitive heterostructures working through all visible light range and containing a semiconducting material (TiO2), a bisquinocyanine pigment-sensitizer, and a polyepoxypropylcarbazole polymer, which protects the material from dissolution have been developed. Our results prove that such heterostructures can be used as active photocatalysts. Dependence of their photoactivity on the quantitative composition has been established and energy characteristics of the electronic processes occurring at the light absorption have been analyzed. We have also proposed mechanism explaining photocatalytic activity of these complex materials.

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