| 常见硫化物表面的XPS研究 |
| |
| 引用本文： | 贾建业,谢先德,吴大清,王建成,王燕.常见硫化物表面的XPS研究[J].高校地质学报,2000,6(2):255-259. |
| |
| 作者姓名： | 贾建业 谢先德 吴大清 王建成 王燕 |
| |
| 作者单位： | 1. 中国科学院 广州地球化学研究所， 广州 510640；2. 河南辉县市 地矿局， 河南 辉县 453600；3. 中国科学院 长沙大地构造研究所， 湖南 长沙 410013 |
| |
| 基金项目： | 中国科学院资助项目，王宽诚教育基金，广东省博士后科研项目，49872017，，，，， |
| |
| 摘 要： | 采用XPS分析方法，研究了黄铁矿、磁黄铁矿、方铅矿、黄铜矿、闪锌矿和毒砂等常见硫化物矿物表面的化学成分及其化学态，从而探讨硫化物表面的氧化和次生变化。研究发现：（1）硫化物矿物表面在氧逸度较高的情况下很容易发生变化，其氧化产物很复杂，主要是其金属元素的高价态氧化物、氢氧化物和硫酸盐等；（2）就一般常见硫化物而言，相对比较稳定的是黄铁矿；（3）常见硫化物经氧化后，其表面的原子比率常常显示硫富余；（4）在含铁的各种常见硫化物中，除黄铁矿表面的铁相对稳定外，毒砂表面的铁也相对较稳定，而闪锌矿表面的类质同像铁却容易被氧化而发生变化。
|
| 关 键 词： | 硫化物 X射线光电子能谱 原子比率 电子结合能 |
| 收稿时间： | 2000-06-20 |
| 修稿时间： | 1999-12-17 |
An XPS Study on Surfaces of Common Sulfide Minerals |
| |
| JIA Jian-ye,XIE Xian-de,WU Da-qing,WANG Jian-cheng,WANG Yan.An XPS Study on Surfaces of Common Sulfide Minerals[J].Geological Journal of China Universities,2000,6(2):255-259. |
| |
| Authors: | JIA Jian-ye XIE Xian-de WU Da-qing WANG Jian-cheng WANG Yan |
| |
| Institution: | 1. Guanzhou Institute Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640; 2. Huixian Bureau of Geology and Mineral Resources, Huixian, 453600, Henan Province; 3. Changsha Institute of Geotectonics, Chinese Academy of Sciences, Changsha, 410013 |
| |
| Abstract: | Surface mineralogy is a boundary science between mineralogy a nd surface sciences, and is also one of the important frontier branches of moder n mineralo gy. Research on mineral surface and mineral-liquid interface provides direct or indirect valuable reference not only for the theory of geosciences and environme ntal protection, but also for mineral-rock materials and other related fields. T he surface mineralogy study of sulfides as a common group of important minerals is limited at present. The surface composition and the surface chemical state of sulfides such as pyrite, pyrrhotite, galena, chalcopyrite, sphalerite and arsen opyrite have been studied in this paper by XPS. Some valuable and interesting re sults related to oxidation and secondary change on sulfide surfaces have been g ained from this study. They include: (1) Sulfide surfaces are easy to be oxidize d in air and the products of oxidation are very complex including their metal hi gh valence oxides, hydroxides and sulfates. (2) Pyrite is more stable as compare d with other common sulfides. (3) The atom ratios on sulfide surfaces show an excess sulfur after oxidation. (4) Among the iron-bearing sulfides, the iron o n arsenopyrite surface is relatively stable, besides the iron on pyrite surf ace. However the isomorphic iron on sphalerite surface is easily to be oxidized. |
| |
| Keywords: | sulfides X-ray photoelectron spectroscopy atom ratio el ectron bonding energy oxidization |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《高校地质学报》浏览原始摘要信息 |
| 点击此处可从《高校地质学报》下载免费的PDF全文 |
|
