RCEES OpenIR  > 环境化学与生态毒理学国家重点实验室
Photo- and thermo-chemical transformation of AgCl and Ag2S in environmental matrices and its implication
Yin, Yongguang; Xu, Wei; Tan, Zhiqiang; Li, Yanbin; Wang, Weidong; Guo, Xiaoru; Yu, Sujuan; Liu, Jingfu; Jiang, Guibin
2017-02-01
Source PublicationENVIRONMENTAL POLLUTION
Volume220Issue:0Pages:955-962
AbstractAgCl 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.
Department环境化学与生态毒理学国家重点实验室
KeywordSilver Nanoparticle Agcl Ag2s Transformation Sunlight Incineration
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/39384
Collection环境化学与生态毒理学国家重点实验室
Recommended Citation
GB/T 7714
Yin, Yongguang,Xu, Wei,Tan, Zhiqiang,et al. Photo- and thermo-chemical transformation of AgCl and Ag2S in environmental matrices and its implication[J]. ENVIRONMENTAL POLLUTION,2017,220(0):955-962.
APA Yin, Yongguang.,Xu, Wei.,Tan, Zhiqiang.,Li, Yanbin.,Wang, Weidong.,...&Jiang, Guibin.(2017).Photo- and thermo-chemical transformation of AgCl and Ag2S in environmental matrices and its implication.ENVIRONMENTAL POLLUTION,220(0),955-962.
MLA Yin, Yongguang,et al."Photo- and thermo-chemical transformation of AgCl and Ag2S in environmental matrices and its implication".ENVIRONMENTAL POLLUTION 220.0(2017):955-962.
Files in This Item: Download All
File Name/Size DocType Version Access License
Photo- and thermo-ch(1415KB) 开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Yin, Yongguang]'s Articles
[Xu, Wei]'s Articles
[Tan, Zhiqiang]'s Articles
Baidu academic
Similar articles in Baidu academic
[Yin, Yongguang]'s Articles
[Xu, Wei]'s Articles
[Tan, Zhiqiang]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Yin, Yongguang]'s Articles
[Xu, Wei]'s Articles
[Tan, Zhiqiang]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Photo- and thermo-chemical transformation of AgCl and Ag2S in environmental matrices and its implication.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.