The impact of TiO2 modifications on the effectiveness of photocatalytic processes [review]

This paper outlines the recent studies on the application of photocatalysis using semiconductors, with modified titanium dioxide (TiO₂) in the process of reducing chemical contamination of surface and ground waters. During the last forty years, an increasing interest in catalysts of this type is noticeable. Hence, a wide range of methods of TiO₂ modifications have been proposed so far by using its various polymorphs, composites with metals and non-metals and polymer-coatings or impregnating it with dyes that effectively absorb sunlight.