Growth of well-developed sodium tantalate crystals from a sodium chloride flux

Sun Hyung Lee, Katsuya Teshima, Yusuke Mizuno, Kunio Yubuta, Toetsu Shishido, Morinobu Endo, Shuji Oishi

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)


Well-developed cubic crystals of NaTaO3 and NaTaO3:La were successfully grown by cooling an NaCl flux at 650-1000 °C. Colourless and transparent NaTaO3 and NaTaO3:La crystals were obtained from relatively low-temperature solutions containing 20 mol% solute, with a smallest average size of 0.18 μm. The crystal sizes and forms were highly dependent on the holding temperature, cooling rate, and starting composition. In particular, when La2O3 powders were added to the starting compositions, NaTaO3:La crystals with a very unique surface morphology were grown from the NaCl flux. Additionally, the average size of the NaTaO3:La crystals decreased dramatically when compared with that of the NaTaO3 crystals prepared under the same conditions. Furthermore, the NaTaO3 and NaTaO3:La crystals exhibited high dye photodegradation activity. These results demonstrate that NaCl is adequate for synthesizing high quality and well-developed tantalate crystals.

Original languageEnglish
Pages (from-to)2871-2877
Number of pages7
Issue number10
Publication statusPublished - Oct 2010
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • General Materials Science
  • Condensed Matter Physics


Dive into the research topics of 'Growth of well-developed sodium tantalate crystals from a sodium chloride flux'. Together they form a unique fingerprint.

Cite this