Przemysl Chemiczny, Vol.91, No.5, 964-969, 2012
Synthesis of TiO2-SiO2 oxide composite in emulsion by using hexane and heptane as organic solvents
TiO2-SiO2 composites were pptd. from aq.-org. emulsions contg. TiOSO4 and Na3SiO3 (water glass), oxyethylated alkylphenol surfactant and hexane or heptane as org. solvents. The composite was sepd. by filtration, dried at 105 degrees C for 18 h, calcined at 1000 degrees C for 1 h and analyzed for dispersion, crystal structure, adsorption ability and water wettability. Use of hexane resulted in formation of composites with lower polydyspersity and higher pore vol., sp. surface area (up to 35.6 m(2)/g) and wettability than those produced in presence of heptane.