用萃取体系负载有机相预分散水解法制备高比表面TiO_2粉体

Preparation of TiO_2 Powder with High Surface Area by Predisperse-hydrolysis Methed

用三辛基氧化膦-煤油/盐酸-Ti(Ⅳ)萃取体系的负载有机相为内相制备了稳定的胶质液态泡沫(CLA)。用氨水水解油泡中的Ti(Ⅳ)制备了孔径约11 nm,比表面约130 m2/g的TiO2粉体。用透射电镜(TEM)、氮气吸附和X射线衍射等方法对制得的材料进行了表征。

Preparation of CLA by the loaded organic phase in TOPO - kerosene/H2SO4 - Ti（ Ⅳ ） extraction system was investigated. The TiO2 powder with the pole size of about 11nm and surface area of 130 m^2/g was soccessfully prepared using CLA hydrolytic method. The powder was studied through TEM and isothermal N2 adsorption.