Preparation of Nanosized TiO2 Powders from Hydrolysis of TiCl4

Abstract

Abstract: By controlling the hydrolysis of titanium tetrachloride with adding (NH₄)₂SO₄ and NH₄OH, the
preparation process of superfine titania powder was investigated. As-prepared powders were characterized by XRD,TEM, SAEDand TG-DTA techniques. Both XRD
and SAED results showed that anatase phase existed in the sample dried at room temperature under vacuum and its primary particle size was about 3.8nm.
When calcined at 400℃ for 2h, it was the single anatase phase of titania and its primary particle size increased to 6.8nm, but rutile phase occurred at the temperature over 700℃ for 2h.

Key words: titania, preparation of powder, hydrolysis

CLC Number:

TF123

ZHANG Qing-Hong,GAO Lian,GUO Jing-Kun. Preparation of Nanosized TiO₂ Powders from Hydrolysis of TiCl₄[J]. Journal of Inorganic Materials.

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Preparation of Nanosized TiO₂ Powders from Hydrolysis of TiCl₄

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