Study of Surfaces of TiO_2-Based Nanostructured Films Obtained under Action of Various Templates

摘要

Using the template sol-gel method and employing polyethyleneimine, polyethylene glycol monooleate, and octylamine as templates, we obtain hybrid materials based on titanium dioxide whose structure contains ordered mesophases of organic substrates. The materials are studied using the thermal, X-ray phase, and X-ray diffraction analyses, as well as small-angle X-ray scattering. Films on a glass surface are obtained from isopropanol solutions containing titanium isopropoxide and organic templates via immersion technique. The surface structure of the films formed before and after annealing was studied by scanning probe microscopy. It is shown that, by using various structure-forming agents, it is possible to control the structure of hybrid materials and films in meso- and macro regions and to obtain titanium dioxide with different composition crystalline modifications during their heat treatment.