Photo- and thermo-chemical transformation of AgCl and Ag2S in environmental matrices and its implication
文献类型：期刊论文
| ; | |
| 作者 | Yin, YG; Xu W(徐伟) ; Xu, W; Tan, ZQ; Li, YB; Wang, WD; Guo, XR; Yu, SJ; Liu, JF; Jiang, GB
|
| 刊名 | ENVIRONMENTAL POLLUTION
 ; ENVIRONMENTAL POLLUTION
|
| 出版日期 | 2017 ; 2017 |
| 卷号 | 220页码:955-962 |
| 关键词 | Silver nanoparticle Silver nanoparticle AgCl Ag2S Transformation Sunlight Incineration AgCl Ag2S Transformation Sunlight Incineration |
| ISSN号 | 0269-7491 ; 0269-7491 |
| DOI | 10.1016/j.envpol.2016.10.081 ; 10.1016/j.envpol.2016.10.081 |
| 文献子类 | Article ; Article |
| 英文摘要 | AgCl and Ag2S prevalently exist in the environment as minerals and/or the chlorination and sulfidation products of ionic silver and elemental silver nanoparticles (AgNPs). In this work, we investigated the chemical transformation of AgCl and Ag2S under simulated sunlight (in water) and incineration (in sludge and simulated municipal solid waste, SMSW). In the presence of natural organic matter, AgCl in river water was observed to be transformed into AgNPs under simulated sunlight, while photo-reduction of Ag2S could not take place under the same experimental conditions. During the course of incineration, pure Ag2S was transformed into elemental silver while AgCl remained stable; however, both Ag2S in sludge and AgCl in SMSW can be transformed to elemental silver under incineration, evident by the results of X-ray absorption spectroscopy and scanning electron microscopy measurements. Incineration temperature played an important role in the transformation of Ag2S and AgCl into elemental silver. These results suggest that chemical transformations of Ag2S and AgCl into elemental silver could be a possible source of naturally occurring or unintentionally produced AgNPs, affecting the fate, transport, bioavailability and toxicity of silver. Therefore, it is necessary to include the contributions of this transformation process when assessing the risk of ionic silver/AgNPs and the utilization and management of incineration residues. (C) 2016 Elsevier Ltd. All rights reserved.; AgCl and Ag2S prevalently exist in the environment as minerals and/or the chlorination and sulfidation products of ionic silver and elemental silver nanoparticles (AgNPs). In this work, we investigated the chemical transformation of AgCl and Ag2S under simulated sunlight (in water) and incineration (in sludge and simulated municipal solid waste, SMSW). In the presence of natural organic matter, AgCl in river water was observed to be transformed into AgNPs under simulated sunlight, while photo-reduction of Ag2S could not take place under the same experimental conditions. During the course of incineration, pure Ag2S was transformed into elemental silver while AgCl remained stable; however, both Ag2S in sludge and AgCl in SMSW can be transformed to elemental silver under incineration, evident by the results of X-ray absorption spectroscopy and scanning electron microscopy measurements. Incineration temperature played an important role in the transformation of Ag2S and AgCl into elemental silver. These results suggest that chemical transformations of Ag2S and AgCl into elemental silver could be a possible source of naturally occurring or unintentionally produced AgNPs, affecting the fate, transport, bioavailability and toxicity of silver. Therefore, it is necessary to include the contributions of this transformation process when assessing the risk of ionic silver/AgNPs and the utilization and management of incineration residues. (C) 2016 Elsevier Ltd. All rights reserved. |
| 电子版国际标准刊号 | 1873-6424 ; 1873-6424 |
| WOS关键词 | SILVER SULFIDE NANOPARTICLES ; SILVER SULFIDE NANOPARTICLES ; DISSOLVED ORGANIC-MATTER ; SEWAGE-SLUDGE ; WASTE-WATER ; DISSOLUTION RATE ; STABILITY ; TOXICITY ; CHLORIDE ; IMPACT ; SPECTROSCOPY ; DISSOLVED ORGANIC-MATTER ; SEWAGE-SLUDGE ; WASTE-WATER ; DISSOLUTION RATE ; STABILITY ; TOXICITY ; CHLORIDE ; IMPACT ; SPECTROSCOPY |
| WOS研究方向 | Environmental Sciences & Ecology ; Environmental Sciences & Ecology |
| 语种 | 英语 ; 英语 |
| WOS记录号 | WOS:000390732300022 ; WOS:000390732300022 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/285119]  |
| 专题 | 中国科学院高能物理研究所_技术发展与经营管理处 高能物理研究所_管理与技术支持 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Yin, YG,Xu W,Xu, W,et al. Photo- and thermo-chemical transformation of AgCl and Ag2S in environmental matrices and its implication, Photo- and thermo-chemical transformation of AgCl and Ag2S in environmental matrices and its implication[J]. ENVIRONMENTAL POLLUTION, ENVIRONMENTAL POLLUTION,2017, 2017,220, 220:955-962, 955-962. |
| APA | Yin, YG.,徐伟.,Xu, W.,Tan, ZQ.,Li, YB.,...&Jiang, GB.(2017).Photo- and thermo-chemical transformation of AgCl and Ag2S in environmental matrices and its implication.ENVIRONMENTAL POLLUTION,220,955-962. |
| MLA | Yin, YG,et al."Photo- and thermo-chemical transformation of AgCl and Ag2S in environmental matrices and its implication".ENVIRONMENTAL POLLUTION 220(2017):955-962. |
入库方式： OAI收割
来源：高能物理研究所
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