| 群青颜料呈色机理的电子顺磁共振研究 |
| |
| 引用本文： | 王进玉,冯良波.群青颜料呈色机理的电子顺磁共振研究[J].分析化学,1994,22(10):1012-1015. |
| |
| 作者姓名： | 王进玉 冯良波 |
| |
| 作者单位： | 敦煌研究院 敦煌736200(王进玉)，中国科学院兰州化学物理研究所 兰州730000(冯良波) |
| |
| 摘 要： | 研究了阿富汗青金石矿石、敦煌石窟青金石颜料、合成群青的呈色机理。实验表明三者均有ｇ＝２．０２９峰，前两者多一个ｇ＝２．０４７峰，４００℃时，ｇ＝２．０４７峰变平，６００℃时消失。ｇ＝２．０２９峰随温度升高而增强，８００℃时增强放慢，颜色也随温度变深。在Ｍ０Ｏ３／ＳｉＯ２和Ｍ０Ｏ３／Ａｌ２Ｏ３表面上，Ｓ２＾－的ＥＰＲ有ｇ１＝２．０４７，ｇ２＝２．２０８，ｇ３＝１．９９８三个分量。因此，群青、青金石和
|
| 关 键 词： | 群青 呈色机理 电子顺磁共振 |
A Study on the Electron Paramagnetic Resonance of Coloration Mechanism of Ultramarine Pigment |
| |
| Wang Jinyu.A Study on the Electron Paramagnetic Resonance of Coloration Mechanism of Ultramarine Pigment[J].Chinese Journal of Analytical Chemistry,1994,22(10):1012-1015. |
| |
| Authors: | Wang Jinyu |
| |
| Abstract: | This paper studies on the coloration mechanism of lapis lazuli ore (I) in Afghanistan, lapis lazuli pigment (I) and artificial ultramarine (III) in Dunhuang Grottoes. The experimental results show that they all have wave of g = 2. 029, and I &.II have g = 2.047 wave value while III does not have. The g=2. 047 wave changes into flat at 400 and disappears at 600. The g=2. 029 wave becomes strong with increasing temperature. At 800, the speed of the strengthening slows down and the color deepens. On the surface of MoO3/SiO2 and MoO3/Al2O3, the EPR spectrum of S2- has g = 2. 047, 2.028, 1.998 branches. The result indicates that the EPR signal of ultramarine, lapis lazuli and artificial ultramarine should be the overlapping signal of two kinds of sulphur free radicals. |
| |
| Keywords: | Ultramarine Lapis lazuli Frescoes at the Dunhuang Mogao Grottoes Electron paramagnetic resonance |
| 本文献已被 CNKI 维普 等数据库收录！ |
