Rapid formation of strontium lead titanate nanopowders by the sonochemical method

Fang Fang, Yinong Lu, Ming Xu, Shuzhe Shi, Yunfei Liu

Research output: Contribution to journalArticlepeer-review

Abstract

Strontium lead titanate Sr1-xPbxTiO3 (SPT) nanopowders have been conveniently synthesized using the sonochemical method. A high intensity of ultrasound irradiation can induce the rapid formation of nanometer SPT particles. By controlling the molar ratio of Sr2+ and Pb2+, SPT nanopowders of different morphologies can be obtained. When x = 0, spherical nanopowders can be obtained. With an increase of the Pb2+ content, the shape of the obtained nanopowders becomes cubic. The results, obtained from X-ray diffraction, show that the microstructure of the SPT nanopowders also changes with the increase of the Pb2+ content at a given total initial concentration. The formation process of the SPT nanopowders under ultrasonic action goes through two steps. First is the formation of the titanium hydroxide gel through the hydrolysis of TiCl4, and then the Sr2+ and Pb2+ are diffused to the titanium hydroxide gel surface. After this, they are combined with the titanium's hydrous nucleus to form the SPT nanoparticles under the effect of ultrasound.

Original languageEnglish
Pages (from-to)1306-1311
Number of pages6
JournalKuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society
Volume35
Issue number10
StatePublished - Oct 2007

Keywords

  • Lead content
  • Morphology
  • Nanopowders
  • Sonochemistry
  • Strontium lead titanate

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