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

研究成果: ジャーナルへの寄稿学術誌査読

31 被引用数 (Scopus)

抄録

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.

本文言語英語
ページ(範囲)2871-2877
ページ数7
ジャーナルCrystEngComm
12
10
DOI
出版ステータス出版済み - 10月 2010
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 化学一般
  • 材料科学一般
  • 凝縮系物理学

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