全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

电气石晶体的光学吸收谱

Full-Text   Cite this paper   Add to My Lib

Abstract:

以新疆阿尔泰矿区的粉红色、绿色和褐绿色电气石晶体为研究对象,通过X射线荧光光谱仪、分光光度计分析了电气石的晶体结构,并对电气石晶体退火处理前后200~3300nm吸收光谱进行测定。结果表明粉红色电气石的呈色与Mn3+的d电子跃迁有关,产生的吸收带有390,450nm和517nm;电气石的绿色调主要与交换耦合Fe3+-Fe3+离子对间的电荷转移形成的420nm吸收带和Fe2+-Fe3+离子对间的电荷转移形成的718nm吸收带有关;电气石晶体中,羟基伸缩振动(O-Hstr)引起的强吸收带在3800~3400cm-1,羟基与金属离子配位构成M-OH的伸缩和弯曲联合振动,在4800~4000cm-1产生5~6个吸收带,而羟基伸缩振动的第1倍频引起的吸收带则出现在7300~6700cm-1;在高温下,-(OH)(3)基团上的H+发生脱离,并与W晶格位置上的O2-发生键合形成-OH(1)基团。电气石晶体的结构式可简化表示为XY3Z6(Si6O18)(BO3)3(OH)3·(O2-,OH,F)。

References

[1]  展杰,郝霄鹏,刘宏,等.天然矿物功能晶体材料电气石的研究进展[J].功能材料,2006,37(4):524–527.ZHAN Jie,HAO Xiaopeng,LIU Hong,et al.Funct Mater(in Chinese),2006,37(4):524–527. [2]杨如增,徐礼新,廖宗廷.黑色电气石红外辐射与晶格缺陷及粒径的关系[J].同济大学学报,2002,30(12):1458–1461.YANG Ruzeng,XU Lixin,LIAO Zongting.J Tongji Univ(in Chinese),2002,30(12):1458–1461. [3]张蓓莉.系统宝石学[M].北京:地质出版社,2006:302–308.ZHANG Beili.Systematic Gemmology(in Chinese).Beijing:Geo-logical Publishing House,2006:302–308. [4]吴瑞华,林善园,白峰,等.辐照处理对碧玺物理性质的影响[J].岩石矿物学杂志,1998,17(4):371–377.WU Ruihua,LIN Shanyuan,BAI Feng,et al.Acta Petrologica ET Mineralogica(in Chinese),1998,17(4):371–377. [5]王元龙,康旭,王淑珍,等.新疆阿尔泰彩色电气石的颜色成因研究[J].矿产与地质,1996,10(3):172–178.WANG Yuanlong,KANG Xu,WANG Shuzheng,et al.Miner Res Geol(in Chinese),1996,10(3):172–178. [6]HAWTHORRNE F C,HENRY D J.Classification of the minerals of the tourmaline group[J].Eur J Miner,1999,11(2):201–215. [7]FUCHS Y,LAGACHE M,LINARES J.Oxydation expérimentale de Fe-tourmalines et corrélation avec une déprotonation des groupes hy-doxyle[J].Comptes Rendus Geosci,2002,334(4):245–249. [8]REINITZ I L,ROSSMAN G R.Role of natural radiation in tourmaline coloration[J].Am Miner,1988,73(7/8):822–825. [9]KUKKADAPU R K,LI Hong.Mssbauer and optical spectroscopic study of temperature and redox effects on iron local environments in a Fe-doped(0.5mol%Fe2O3)18Na2O–72SiO2glass[J].J Non-Crystal Solids,2003,317(3):301–318. [10]CHAKRADHAR R P S,MURALI A,RAO J L.Electron paramagnetic resonance and optical absorption studies of Fe(III)ions in alkali bar-ium borate glasses[J].Opt Mater,1998,10(2):109–116. [11]CLARK M G,DISALVO F J,GLASS A M,et al.Electronic-structure and optical index damage of iron-doped lithium-niobate[J].J Chem Phys,1973,59(12):6209–6214. [12]MICHEL-CALENDINI F M,MüLLER K A.Interpretation of charge transfer bands in Fe doped SrTiO3crystals[J].Solid State Commun,1981,40(3):255–260. [13]GARCES N Y,STEVENS K T,HALLIBURTON LE,et al.Optical absorption and electron paramagnetic resonance of Fe ions in KDP crystals[J].J Cryst Growth,2001,225(2–4):435–439. [14]徐斌,刘希玲,李可,等.黄、绿水晶的生长及透光特性[J].硅酸盐通报,1993,12(4):57–59.XU Bing,LIU Xiling,LI Ke,et al.Bull Chin Ceram Soc(in Chinese),1993,12(4):57–59. [15]NIKOLSKAYA L V,TEREKHOVA V M,Samoilovich M I.On the origin of natural sapphire color[J].Phys Chem Miner,1978,3(3):213. [16]WILKINS R W T,FARRELL E F,NAIMAN C S.The crystal field spectra and dichroism of tourmaline[J].J Phys Chem Solids,1969,30(1):43–56. [17]TARAN M N,LEBEDEV A S,PLATONOV A N.Optical absorption spectroscopy of synthetic tourmalines[J].Phys Chem Miner,1993,20(3):209–220. [18]HUSH N S.Intervalence-transfer absorption Part2:Theoretical con-siderations and spectroscopic data[J].Prog Inorg Chem,1967,8:391. [19]FRITSCH E,ROSSMAN,G R.An update on color in gems part2,colors involving multiple atoms and color centers[J].Gems Gemol,1988,24(1):81–102. [20]MATTSON S M,ROSSMAN G R.Fe2+–Fe3+Interactions in tourma-line[J].Phys Chem Miner,1987,14(1):163–171. [21]REDDY B J,FROST R L,MARTENS W N,et al.Spectroscopic characterization of Mn-rich tourmalines[J].Vib Spectrosc,2007,44(1):42–49. [22]王进军,陶晓风,王武军.新疆绿色电气石颜色成因研究[J].岩石矿物学杂志,2005,24(4):319–323.WANG Jinjun,TAO Xiaofeng,WANG Wujun.Acta Petrologica ET Mineralogica(in Chinese),2005,24(4):319–323.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133