Nano-sized titania powders have been prepared by hydrolysis of tetrabutyl titanate in the droplet of water/OP-7/pentanol/cyclohexane microemulsion system. The effects of ingredient change on the water drop size and particle size were investigated. The prepared TiO2 was in the form of anatase after annealing. TiO2 was characterized by TG-TGA,FTIR, XRD to measure the transformation temperature, surface adsorption and average size.
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