A controllable approach for the synthesis of titanate derivatives of potassium tetratitanate fiber

Ming He, Xin Feng, Xiaohua Lu, Xiaoyan Ji, Chang Liu, Ningzhong Bao, Jingvvei Xie

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34 Scopus citations

Abstract

Three types titanate derivatives, K2Ti8O13 fiber, K2Ti8O17 fiber and anatase TiO 2 fiber, were synthesized by ion-exchange reaction from potassium tetratitanate fiber (K2Ti4O9) based on the hydrate conditions predicted by a thermodynamic model. These products were formed by a heat treatment of the corresponding hydrate intermediates K 1.33H0.67Ti4O9·H 2O, KHTi4O9·0.5H2O and H 2Ti4O9·1.2H2O which were quantitatively obtained by controlling the pH value and the equilibrium concentration of potassium ion. The mole ratio of Ti/K in solid phase (R) of the target products was taken as the controlling aim in the hydrate process. The temperature for heat treatment of hydrate intermediates was determined by thermogravimetry (TG) and differential scanning calorimetry (DSC). All products retained fibrous morphology similar to that of K2Ti4O 9 used as the starting material.

Original languageEnglish (US)
Pages (from-to)3745-3750
Number of pages6
JournalJournal of Materials Science
Volume39
Issue number11
DOIs
StatePublished - Jun 1 2004

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ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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