Synthesis of a transparent hybrid layer photocatalyst having high rubbing resistance

A transparent layer photocatalyst having high rubbing resistance was developed. A high temperature burning process cannot be applied to form transparence layer photocatalysts using a low heat-resistant plastic film. We were able to synthesize the transparence layer photocatalyst having high rubbing resistance by irradiation of the hybrid material consisted of urethane acrylic oligomer and titanium lactate using a high pressure mercury lamp. The layer formed through a hybrid reaction of photo-polymerization of urethane acrylic oligomer and the sol-gel reaction of titanium lactate at relatively low temperature. The layer showed high rubbing resistance and high transparency, and titanium include in it dispersed uniformly. Photocatalytic activity was confirmed by detection of radicals using electron spin resonance (ESR) and was also evaluated by measuring bleaching of methylene blue solution.