Photoreduction of mercuric salt in UV/Fe (III)-oxalate complex system
文献类型：期刊论文
| 作者 | Deng, Lin; Wu, Feng; Chen, Yong; Deng, Nansheng; Liu, Jiantong |
| 刊名 | FRESENIUS ENVIRONMENTAL BULLETIN
 |
| 出版日期 | 2006 |
| 卷号 | 15期号:6页码:484-488 |
| 关键词 | Hg (II) Fe (III)-oxalate complex photoreduction |
| ISSN号 | 1018-4619 |
| 通讯作者 | Deng, N, Wuhan Univ, Sch Resources & Environm Sci, Wuhan 430072, Peoples R China |
| 中文摘要 | In this paper, the photochemical reduction process of Hg (II) in aqueous solution containing ferric iron and oxalate (Ox) has been studied. Under the radiation of a low-pressure mercury lamp (lambda = 253.7 nm, 8W), Fe(III)-oxalate complexes undergo photolysis to produce ferrous ions and other organic reductive species, which reduce Hg(II) subsequently. For 0.1 mg/L Hg (II), the photoreduction efficiency is comparatively higher in the solution at pH 5.0 than that over the range of 3.0 similar to 8.0. The photoreduction efficiency of Ho (II) in aqueous solution increases with increasing, initial concentration of ferric ions from 0.02 mmol/L to 0.2 mmol/L and initial concentration of oxalate from 0.96 mmol/L to 4.8 mmol/L and then gradually approaches to a steady state. CH3OH also contributes the reduction of Hg (II). We investigate the increase of the ferric, oxalate and CH3OH concentrations resulting from the increase of reduction efficiency of Hg (II). It can be seen that ferrous ions and other reactive species are reductants of Hg (II), and the reaction product with oxalate is mainly volatile metallic mercury. |
| 英文摘要 | In this paper, the photochemical reduction process of Hg (II) in aqueous solution containing ferric iron and oxalate (Ox) has been studied. Under the radiation of a low-pressure mercury lamp (lambda = 253.7 nm, 8W), Fe(III)-oxalate complexes undergo photolysis to produce ferrous ions and other organic reductive species, which reduce Hg(II) subsequently. For 0.1 mg/L Hg (II), the photoreduction efficiency is comparatively higher in the solution at pH 5.0 than that over the range of 3.0 similar to 8.0. The photoreduction efficiency of Ho (II) in aqueous solution increases with increasing, initial concentration of ferric ions from 0.02 mmol/L to 0.2 mmol/L and initial concentration of oxalate from 0.96 mmol/L to 4.8 mmol/L and then gradually approaches to a steady state. CH3OH also contributes the reduction of Hg (II). We investigate the increase of the ferric, oxalate and CH3OH concentrations resulting from the increase of reduction efficiency of Hg (II). It can be seen that ferrous ions and other reactive species are reductants of Hg (II), and the reaction product with oxalate is mainly volatile metallic mercury. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 学科主题 | Environmental Sciences |
| 类目[WOS] | Environmental Sciences |
| 研究领域[WOS] | Environmental Sciences & Ecology |
| 关键词[WOS] | AQUEOUS-SOLUTIONS ; CHROMIUM(VI) ; FERRIOXALATE ; REDUCTION ; CITRATE ; WATER |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000239177700003 |
| 公开日期 | 2010-10-13 |
| 源URL | [http://ir.ihb.ac.cn/handle/152342/8906]  |
| 专题 | 水生生物研究所_中科院水生所知识产出（2009年前）_期刊论文 |
| 作者单位 | 1.Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430079, Peoples R China 2.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China |
| 推荐引用方式 GB/T 7714 | Deng, Lin,Wu, Feng,Chen, Yong,et al. Photoreduction of mercuric salt in UV/Fe (III)-oxalate complex system[J]. FRESENIUS ENVIRONMENTAL BULLETIN,2006,15(6):484-488. |
| APA | Deng, Lin,Wu, Feng,Chen, Yong,Deng, Nansheng,&Liu, Jiantong.(2006).Photoreduction of mercuric salt in UV/Fe (III)-oxalate complex system.FRESENIUS ENVIRONMENTAL BULLETIN,15(6),484-488. |
| MLA | Deng, Lin,et al."Photoreduction of mercuric salt in UV/Fe (III)-oxalate complex system".FRESENIUS ENVIRONMENTAL BULLETIN 15.6(2006):484-488. |
入库方式： OAI收割
来源：水生生物研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。