Synthesis and properties of composites synthesized by deposition of TiO2 doped with SnO2 or NiO2 onto A-300 nanosilica

Abstract

This paper focuses on the investigation of nanooxide composites SiO2/TiO2/X (X = SnO2, NiO) synthesized by controlled low-temperature hydrolysis of TiCl4, SnCl4 (followed by thermal treatment of some samples) on nanosilica surface (specific surface area 300 m2/g) and by thermolysis of Ni(NO3)2 · 6H2O at 600°C. The effect of the nature and concentration of a doping agent on the phase composition of the composites and their physicochemical properties is determined. The properties of the synthesized systems are examined by means of XRD analysis, nitrogen adsorption, potentiometric titration, and photon correlation spectroscopy.