**Advanced Hybrid Materials Based on Titanium Dioxide for Environmental and Electrochemical Applications**

Katarzyna Siwińska-Stefańska and Teofil Jesionowski

Additional information is available at the end of the chapter

http://dx.doi.org/10.5772/intechopen.69357

#### **Abstract**

Constant technological progress, as well as the pursuit of "friendly" technologies, leads to intensive work on the development of a new generation of advanced products with strictly defined, unique physicochemical properties dedicated to specific applications. This group of materials includes hybrids based on titanium dioxide and its derivatives, characterised with specific, well-defined physicochemical and structural properties, chiefly determined during their synthesis. Different properties of titania nanoparticles depend on their morphology, crystallite size, and crystalline structure. Nanocrystalline titanium dioxide can be synthesised via different methods, among which chemical precipitation, microemulsion method (inversed micelles), sol-gel process and hydrothermal crystallisation are the most important ones. That is why, a crucial part of the following chapter will be paid to characterisation of synthesis routes used for titanium dioxide and titania-based hybrid production. Furthermore, application of TiO<sup>2</sup> -based materials, including mixed oxide systems as well as graphene oxide–based hybrids, in electrochemical (electrode material) and environmental (photocatalysis) aspects, will be described in detail.

**Keywords:** titanium dioxide, TiO<sup>2</sup> -based hybrid materials, advanced material synthesis, photocatalyst, electrode material
