Na2Ti3O7, with layered structure, was prepared from a 1:3 molar mixture of powdered Na2 CO3 and TiO2 by heating at 800 °C for h. The Na+ ions were exchanged for H+ ions by hydrochloric acid treatment; next, n-butylamine, n-octylamine, n-decylamine or n-dodecylamine were incorporated at pH=3.6-3.8. It was proven by XRD measurements that, as the length of the alkyl chain of the amines was increased, smaller amounts of amines were intercalated under identical conditions. H2Ti3O7 samples dispersed in liquids of various compositions and polarities were used for the preparation of self-assembled titanate/polymer films for further sensor applications. Titanates, their composites with alkyl amines and the self-assembled hybrid structures were characterized by X-ray diffraction, thermoanalytical, optical, electron and atomic force microscopic measurements.
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Polymers and Plastics
- Colloid and Surface Chemistry
- Materials Chemistry