Acta Chimica Sinica ›› 2012, Vol. 70 ›› Issue (03): 247-253.DOI: 10.6023/A1108224 Previous Articles     Next Articles

Full Papers


黄宏升, 刘志宏   

  1. 陕西省大分子科学重点实验室 陕西师范大学化学化工学院 西安 710062
  • 投稿日期:2011-08-22 修回日期:2011-11-12 发布日期:2011-11-21
  • 通讯作者: 刘志宏
  • 基金资助:

    国家自然科学基金(No. 20871078)和陕西省自然科学研究计划(No. SJ08B01)资助项目.

Preparation and Luminescent Properties of Series of Strontium Metaborate Light-emitting Materials

Huang Hongsheng, Liu Zhihong   

  1. Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062
  • Received:2011-08-22 Revised:2011-11-12 Published:2011-11-21
  • Supported by:

    Project supported by the National Natural Science Foundation of China (No. 20871078), and the Natural Science Foundation of Shaanxi Province of China(No. SJ08B01).

The SrB2O4·4H2O and SrB2O4·4H2O:Eu3+ light-emitting materials have been synthesized by liquid coprecipitation method, and SrB2O4 and SrB2O4:Eu3+ have been synthesized by calcination precursor method. All the as-prepared products were characterized by the XRD, EDS and SEM, respectively. Their luminescent properties were investigated by fluorescence spectroscopy, and the influences of reaction time and the doping concentration of Eu3+ on the emission intensities have also been investigated. The results show that the matrixes of SrB2O4·4H2O and SrB2O4 have stronger luminescence in the UV region, and SrB2O4·4H2O:Eu3+ and SrB2O4:Eu3+ samples have the strongest emission peaks near 613 nm. By adjusting the reaction time and increasing the amount of doping, the quenching effect of structural water on the luminescence can be overcome, which improves the luminescence of SrB2O4·4H2O:Eu3+ with higher redorange ratio. It shows that SrB2O4·4H2O is a new good hydrated borate matrix for light-emitting materials.

Key words: strontium metaborate, hydrated borate, preparation, luminescent property