We prepared novel unsymmetrical A3B-type zinc and cobalt phthalocyanines bearing monocarboxylic acid groups on peripheral positions using statistical condensation method, especially designed to anchor on the TiO2 semiconductor surface. The novel complexes were anchored on TiO2 semiconductor to prepare effective dye sensitized photoactive composites as heterogeneous catalysts. The results indicated that modified TiO2 nanocrystals possessed only the anatase phase and MPc-TiO2 photocatalysts with loading amount of dye ca. µmol/g TiO2 exhibit strong visible light absorption. |
