Evaluating the role of re-adsorption of dissolved Hg2+ during cinnabar dissolution using isotope tracer technique
文献类型：期刊论文
| 作者 | Jiang, Ping; Li, Yanbin; Liu, Guangliang; Yang, Guidi; Lagos, Leonel; Yin, Yongguang; Gu, Baohua; Jiang, Guibin; Cai, Yong |
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
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| 出版日期 | 2016-11-05 |
| 卷号 | 317期号:0页码:466-475 |
| 关键词 | Cinnabar dissolution Hg re-adsorption on cinnabar surface Isotope tracer technique Isotope dilution Redox condition |
| 英文摘要 | Cinnabar dissolution is an important factor controlling mercury (Hg) cycling. Recent studies have suggested the co-occurrence of re-adsorption of the released Hg during the course of cinnabar dissolution. However, there is a lack of feasible techniques that can quantitatively assess the amount of Hg re-adsorbed on cinnabar when investigating cinnabar dissolution. In this study, a new method, based on isotope tracing and dilution techniques, was developed to study the role of Hg re-adsorption in cinnabar dissolution. The developed method includes two key components: (1) accurate measurement of both released and spiked Hg in aqueous phase and (2) estimation of re-adsorbed Hg on cinnabar surface via the reduction in spiked 202Hg(2+). By adopting the developed method, it was found that the released Hg for trials purged with oxygen could reach several hundred mu g L-1, while no significant cinnabar dissolution was detected under anaerobic condition. Cinnabar dissolution rate when considering Hg re-adsorption was approximately 2 times the value calculated solely with the Hg detected in the aqueous phase. These results suggest that ignoring the Hg re-adsorption process can significantly underestimate the importance of cinnabar dissolution, highlighting the necessity of applying the developed method in future cinnabar dissolution studies. (C) 2016 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/35852]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Jiang, Ping,Li, Yanbin,Liu, Guangliang,et al. Evaluating the role of re-adsorption of dissolved Hg2+ during cinnabar dissolution using isotope tracer technique[J]. JOURNAL OF HAZARDOUS MATERIALS,2016,317(0):466-475. |
| APA | Jiang, Ping.,Li, Yanbin.,Liu, Guangliang.,Yang, Guidi.,Lagos, Leonel.,...&Cai, Yong.(2016).Evaluating the role of re-adsorption of dissolved Hg2+ during cinnabar dissolution using isotope tracer technique.JOURNAL OF HAZARDOUS MATERIALS,317(0),466-475. |
| MLA | Jiang, Ping,et al."Evaluating the role of re-adsorption of dissolved Hg2+ during cinnabar dissolution using isotope tracer technique".JOURNAL OF HAZARDOUS MATERIALS 317.0(2016):466-475. |
入库方式： OAI收割
来源：生态环境研究中心
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