Modes of occurrence of beryllium in the Ge-rich coal deposit, Lincang, SW China: Theoretical insight into organic association and distribution
文献类型：期刊论文
| 作者 | Wei, Qiang2; Zhao, Lei1 |
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2024-12-05 |
| 卷号 | 480页码:135913 |
| 关键词 | Beryllium Coal Modes of occurrence Organic association Theoretical calculation |
| DOI | 10.1016/j.jhazmat.2024.135913 |
| 产权排序 | 1 |
| 英文摘要 | The coal-hosted germanium (Ge) deposit in Lincang, China, contains an abnormally high concentration of beryllium (Be), which is of significant organic affinity. However, the specific species of Be at the atomic scale remain unclear. In this study, thirteen model compounds representing O/S/N-containing functional groups in coal were calculated to probe the local environment of Be. The results indicate that hydroxyl and carboxyl groups are the primary acceptors of Be. Various Be-O complexes with a saturated four coordination of Be can achieve best stabilization. In contrast, the heteroatoms S and N are less likely to act as the acceptors for Be. In addition, the calculation results provide theoretical insights into the vertical distribution of Be. Unlike the upper coal seam, a fraction of Be in the middle and lower seams occurs in a mineral phase, which can be attributed to the limited capacity of organic matter to bond with all available Be. Furthermore, competition from other organically-associated metals, such as Ge and W, for bonding sites affects the local distribution of Be. This study reveals the molecular mechanism for Be enrichment in the organic matter of the Lincang Ge deposit, and suggests potential strategies for the removal of organically bonded Be in coal through the destruction of O-bridged complexes. |
| WOS关键词 | TRACE-ELEMENTS ; COORDINATION CHEMISTRY ; SULFUR FORMS ; GEOCHEMISTRY ; AFFINITIES ; ADSORPTION ; KAOLINITE ; WULANTUGA ; GERMANIUM ; YUNNAN |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| WOS记录号 | WOS:001327212800001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/208227]  |
| 专题 | 资源利用与环境修复重点实验室_外文论文 |
| 通讯作者 | Zhao, Lei |
| 作者单位 | 1.China Univ Min & Technol Beijing, Coll Geosci & Survey Engn, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wei, Qiang,Zhao, Lei. Modes of occurrence of beryllium in the Ge-rich coal deposit, Lincang, SW China: Theoretical insight into organic association and distribution[J]. JOURNAL OF HAZARDOUS MATERIALS,2024,480:135913. |
| APA | Wei, Qiang,&Zhao, Lei.(2024).Modes of occurrence of beryllium in the Ge-rich coal deposit, Lincang, SW China: Theoretical insight into organic association and distribution.JOURNAL OF HAZARDOUS MATERIALS,480,135913. |
| MLA | Wei, Qiang,et al."Modes of occurrence of beryllium in the Ge-rich coal deposit, Lincang, SW China: Theoretical insight into organic association and distribution".JOURNAL OF HAZARDOUS MATERIALS 480(2024):135913. |
入库方式： OAI收割
来源：地理科学与资源研究所
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