Low-Temperature Mineralisation of Titania-Siloxane Composite Layers

This paper deals with low-temperature mineralisation of coatings made titania-siloxane compositions (TSC). Methyltriethoxysilane has been adopted as the precursor for siloxane, and during its synthesis, an oligomeric siloxane condensate methyl moieties acting TiO2 binder produced. These moieties, contained in TSC, provide solubility prevent gelling, but reduce hydrophilicity system, transfer electrons holes generated TiO2. In order to avoid these unfavourable effects, TSC can be achieved by nonthermal treatment, example, using UV-radiation or plasma treatment. Characterisation was performed gel permeation chromatography (GPC), which showed size chain. Thermogravimetric analysis revealed a temperature at mineralises SiO2. Printed layers two types different contents were studied scanning electron microscope (SEM), where difference porosity samples observed. on fluorine-doped tin oxide (FTO) coated glass microscopic treated non-thermal UV methods. FTO tested voltammetric measurements, that non-thermally have better properties amount great influence their efficiency. Samples subjected photocatalytic decomposition test model pollutant Acid orange 7 (AO7). Non-thermally show higher activity than raw sample.