Study on preparation of TiO2 Sol using TiCl4 as a Precursor for catalytic applications
Abstract
A titanium dioxide sol with nano particle size distribution was synthesized using TiCl4 as a precursor. The sol was prepared by a process where HCl was added to a gel of hydrated titanium oxide to dissolve it. The resulting aqueous titanic acid solution was heated to form titanium dioxide sol. The effects of preparation parameters, viz., concentration of TiO2, pH value of the Ti(OH)4 gel, temperature and time were investigated. The materials were characterized by transmission electron microscopy and zeta sizer. The results showed that the TiO2 particles were rhombus is about 12 nm, and were in anatase structure. The best preparation condition was optimized with the pH value of Ti(OH)4 gel at 8, TiO2 concentration of 0,7%, and heating at 97°C for 30 h.
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