Significant contribution of metastable particulate organic matter to natural formation of silver nanoparticles in soils

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	Significant contribution of metastable particulate organic matter to natural formation of silver nanoparticles in soils
	Huang, Ying-Nan ; Qian, Ting-Ting ; Dang, Fei ; Yin, Yong-Guang ; Li, Min ; Zhou, Dong-Mei
刊名	NATURE COMMUNICATIONS
	2019-08-21
卷号	10 页码:-
ISSN号	2041-1723
英文摘要	Particulate organic matter (POM) is distributed worldwide in high abundance. Although insoluble, it could serve as a redox mediator for microbial reductive dehalogenation and mineral transformation. Quantitative information on the role of POM in the natural occurrence of silver nanoparticles (AgNPs) is lacking, but is needed to re-evaluate the sources of AgNPs in soils, which are commonly considered to derive from anthropogenic inputs. Here we demonstrate that POM reduces silver ions to AgNPs under solar irradiation, by producing superoxide radicals from phenol-like groups. The contribution of POM to the naturally occurring AgNPs is estimated to be 11-31%. By providing fresh insight into the sources of AgNPs in soils, our study facilitates unbiased assessments of the fate and impacts of anthropogenic AgNPs. Moreover, the reducing role of POM is likely widespread within surface environments and is expected to significantly influence the biogeochemical cycling of Ag and other contaminants that are reactive towards phenol-like groups.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/42590]
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
作者单位	1.[Huang, Ying-Nan 2.Qian, Ting-Ting 3.Dang, Fei 4.Li, Min 5.Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Jiangsu, Peoples R China 6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 7.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China 8.Nanyang Technol Univ, Nanyang Environm & Water Res Inst, Adv Environm Biotechnol Ctr, 1 Cleantech Loop, Singapore 637141, Singapore
推荐引用方式 GB/T 7714	Huang, Ying-Nan,Qian, Ting-Ting,Dang, Fei,et al. Significant contribution of metastable particulate organic matter to natural formation of silver nanoparticles in soils[J]. NATURE COMMUNICATIONS,2019,10:-.
APA	Huang, Ying-Nan,Qian, Ting-Ting,Dang, Fei,Yin, Yong-Guang,Li, Min,&Zhou, Dong-Mei.(2019).Significant contribution of metastable particulate organic matter to natural formation of silver nanoparticles in soils.NATURE COMMUNICATIONS,10,-.
MLA	Huang, Ying-Nan,et al."Significant contribution of metastable particulate organic matter to natural formation of silver nanoparticles in soils".NATURE COMMUNICATIONS 10(2019):-.