Reduction of Eu3+ to Eu2+ in aluminoborosilicate glasses prepared in air
Reduction of Eu3+ to Eu2+ in aluminoborosilicate glasses prepared in air
复制标题
空气中制备的铝硼硅酸盐玻璃中 Eu3 还原为 Eu2
DOI：
10.1111/j.1551-2916.2008.02496.x
复制
发表时间：
2008-08-01
影响因子：
3.9
通讯作者：
Han, Gaorong
中科院分区：
文献类型：
--
作者：
Liu, Shimin;Zhao, Gaoling;Han, Gaorong
在空气中高温制备了Eu2O3 掺杂的铝硼硅酸盐玻璃。发光测量用于研究铝硼硅酸盐玻璃中从 Eu3+ 离子到 Eu2+ 离子的价态变化。结果表明，Eu2O3:RO-Al2O3-B2O3-SiO2 (RO=CaO、SrO、BaO、Li2O)玻璃中掺杂的Eu3+离子部分被还原为Eu2+，而Eu2O3:RO-Al2O3-B2O3-SiO2 (RO=Na2O、K2O)玻璃中则没有部分还原为Eu2+。讨论了不同RO组分的Eu还原随RO光学碱度的变化和R阳离子不同价态的变化。还研究并讨论了铝硼硅酸盐玻璃中共掺杂BaO和ZnO对Eu还原的影响。
Eu2O3-doped aluminoborosilicate glasses were prepared in air at high temperature. Luminescence measurements were used to investigate a valence change from Eu3+ to Eu2+ ions in the aluminoborosilicate glasses. The results showed that the doped Eu3+ ions were partially reduced to Eu2+ in the Eu2O3:RO-Al2O3-B2O3-SiO2 (RO=CaO, SrO, BaO, Li2O) glasses, but not in the Eu2O3:RO-Al2O3-B2O3-SiO2 (RO=Na2O, K2O) glasses. The changes of Eu reduction with different RO components were discussed with the variation of optical basicity of RO and with different valency of R cations. The effects of co-doping BaO and ZnO in aluminoborosilicate glasses on Eu reduction were also investigated and discussed.