Thermal study in Eu3+-doped boehmite nanofibers and luminescence properties of the corresponding Eu3+:Al2O3
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- 作者：Xiangyu Xu (1)
Yuxin Liu (1)
Zhi Lv (1)
Jiaqing Song (1)
Mingyuan He (2)
Qian Wang (3)
Lijun Yan (3)
Zhaofei Li (3) - 关键词：Boehmite ; Nanofibers ; Al2O3 ; Europium
- 刊名：Journal of Thermal Analysis and Calorimetry
- 出版年：2014
- 出版时间：December 2014
- 年：2014
- 卷：118
- 期：3
- 页码：1585-1592
- 全文大小：1,324 KB
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Mingyuan He (2)
Qian Wang (3)
Lijun Yan (3)
Zhaofei Li (3)
1. State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
2. Shanghai Key Laboratory of Green Chemistry and Chemical Processes, East China Normal University, Shanghai, 200062, China
3. Petrochemical Research Institute of Petrochina, Beijing, 100195, China - ISSN：1572-8943
文摘
Eu3+-doped boehmite nanofiber materials with different Eu3+ concentrations were synthesized without any surfactant, and followed by a series of characterizations. It was found that the boehmite nanofibers became coarser with the increase of Eu3+ concentration, which resulted in a gradual decrease of their specific surface areas. Moreover, the thermal stability of the boehmite nanofibers was studied by thermogravimetry–differential scanning calorimetry. All materials showed the phase transition from γ-Al2O3 to other forms. Yet the transition temperature was increased with the increase of Eu3+ concentration. The Eu3+-doped boehmite nanofibers with the maximum Eu3+ concentrations showed the best thermal stability. Photoluminescence spectra showed that the 2?mol% of doping concentration of Eu3+ ions in Eu3+:Al2O3 nanofiber was optimum.