The preparation of nanometer titania from titanyl sulfate by liquid phase method;

The materials for producing nano titanium dioxide(TiO_2) can be organic titanate,titanic chloride or titanyl sulfate,the last one is an intermediate during the production of TiO_2 by sulfuric method.

This article is focused on the production technologies of nano-TiO_(2) from titanyl sulfate,an intermediate product during production of sulfated processTiO_(2),such as precipitation process,sol process,hydrothermal process.

The nanosized titanium dioxide immobilized onto diatomite was obtained through changing the TiOSO4 concen-tration,the mass ratio of diatomite to titanium dioxide,the concentration of urea,pH value,reaction temperature and time,and calcining temperature by the mixed homogeneous deposition method using diatomite as the carrier,TiOSO4 as the raw material and urea as the precipitator.

With the carrier of activated carbon fiber(ACF), photocatalytic degradation of acetone with P25 and self-prepared catalysis bythe material of TiOSO4 was compared.

DIP-COATING OF TiO_2 FILMS USING A SOL DERIVED FROM TiOSO_4-H_2O-GLYCOL SYSTEM;