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›› 2011, Vol. 11 ›› Issue (1): 143-147.

• 材料工程专栏 • 上一篇    下一篇

溶胶-凝胶法制备掺杂钐的二氧化钛及其发光性能研究

宋金玲 周长才 侯志鹏 李霞 蔡颖 张胤   

  1. 内蒙古科技大学稀土学院 内蒙古蒙大新能源化工基地开发有限公司 内蒙古科技大学稀土学院 内蒙古科技大学稀土学院 内蒙古科技大学稀土学院 内蒙古科技大学材料与冶金学院
  • 收稿日期:2011-03-07 修回日期:1900-01-01 出版日期:2011-02-20 发布日期:2011-02-20
  • 通讯作者: 宋金玲

Study on Synthesis of TiO2 Powder Doped with Sm by Sol-Gel Method and Its Photoluminescent Properties

SONG Jin-ling ZHOU Chang-cai HOU Zhi-peng LI Xia CAI Ying ZHANG Yin   

  1. School of Rare Earth, Inner Mongolia University of Science and Technology Inner Mongolia Mengda New Energy Chemical Industry Base Development Co. Ltd. School of Rare Earth, Inner Mongolia University of Science and Technology School of Rare Earth, Inner Mongolia University of Science and Technology School of Rare Earth, Inner Mongolia University of Science and Technology Material and Metallurgical School, Inner Mongolia University of Science & Technology
  • Received:2011-03-07 Revised:1900-01-01 Online:2011-02-20 Published:2011-02-20
  • Contact: SONG Jin-ling

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被引次数

26

摘要： 通过考察加水方式、加水量、反应温度和抑制剂对溶胶的胶凝速率的影响，选用加水方式为滴加方式、钛酸四丁酯和水的体积比为5:1、反应温度为30~35℃、硝酸作抑制剂的溶胶-凝胶法制备了TiO2粉末和掺杂不同含量Sm3+的TiO2粉末，并对其结构、发光性能和形貌进行了表征. 结果表明，所制TiO2粉末为锐钛矿结构，颗粒粒径为5~10 nm；Sm的掺杂抑制了TiO2晶粒生长. Sm掺杂在光致发光谱中引起了新的发射峰，其强度随Sm掺杂量的改变而改变，在4.0%(w)处达到强度最低值.

关键词: 溶胶-凝胶法, TiO2, TiO2:Sm3+, XRD, 光致发光

Abstract: The influences of way and quantity of water adding, reaction temperature and inhibitor on the gelatification of sol are studied. The optimal conditions have been finally selected. The adding way of water is dripping, volume ratio of tetrabutyl titanate to water 5:1, reaction temperature 30~35℃ and inhibitor nitric acid. Under the optimized conditions, the TiO2 powder and TiO2 powders doped with different contents of Sm3+ are prepared by the sol-gel method, and their structures and luminescent properties characterized by XRD and photoluminescence spectra, respectively. The results indicate that the structure of prepared TiO2 powder is anatase, and doping ion Sm3+ can restrain the growth of TiO2 crystals. The doped Sm causes the changes of new emission peaks and their intensities under different Sm3+ doping quantities, achieving the minimum value of intensity at 4.0%(w). The morphologies of the TiO2 powder are particles with the diameters of 5~10 nm.

Key words: sol-gel method, TiO2, TiO2:Sm3+, XRD, photoluminescence

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