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Study on Preparation and Phase Transition of Hydrous Titanium Dioxide Fibers

Wang Fuping; Song Ying; Jiang Zhaohua; Wang Jing; Zhou Yu(Harbin Institute of Technology, Harbin, 150001)  
Hydrous titanium dioxide fibers were obtained when K2Ti4O9 fibers prepared byKDC method were conduced in deionized water and then treated with acid solution.The phase transition was studied by TG-DTA and XRD. It is showed that hydrous titanium dioxide fibers had a series of phase changes with the increase of the temperature: H2Ti4O9·1.2H2O→H2Ti8O17→TiO2(B)→middle phase→ anatase→ rutile and the formation mechanism was discussed.
【CateGory Index】: TQ343
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