Fate and Transformation of CuO Nanoparticles in the Soil-Rice System during the Life Cycle of Rice Plants
Peng, Cheng1,2; Xu, Chen1,3; Liu, Qinglin1; Sun, Lijuan1; Luo, Yongming4; Shi, Jiyan1,5
2017-05-02
发表期刊ENVIRONMENTAL SCIENCE & TECHNOLOGY
ISSN0013-936X
卷号51期号:9页码:4907-4917
摘要Agricultural soil is gradually becoming a primary sink for metal -based nanoparticles (MNPs). The uptake and accumulation of MNPs by crops may contaminate food chain and pose unexpected risks for human health. Here, we investigated the fate and transformation of CuO nano particles (NPs) in the soil -rice system during the rice lifecycle. The results show that at the maturation stage, 1000 mg/kg CuO NPs significantly decreased redox potential by 202.75 triV but enhanced electrical conductivity by 497.07 mS/cm compared to controls. Moreover, the bioavailability of highest CuO NPs in the soil was reduced by 69.84% along with the plant growth but then was significantly increased' y 165% after drying -wetting cycles. Meanwhile, CuO and Cu coMbined with humic acid were transformed to Cu2S and Cu associated with goethite by X-ray absorption near edge structure analysis. AdditiOnally, CuO NPs had an acute negative effect on the plant growth than bulk particles, which dramatically reduced the fresh weight of grains to 6.51% of controls. Notably, CuO NPs were found to be translocated from soil to plant especially to the chaff and promoted the Cu accumulation in the aleurone layer of rice using micro X-ray fluorescence technique, but could not reach the polished rice.
DOI10.1021/acs.est.6b05882
项目资助者National Natural Science Foundation of China(41422107 ; National Key Research and Development Program of China(2016YFD0800401) ; Zhejiang University KP.Chao's High Technology Development Foundation ; 21177109 ; U1532103)
收录类别SCI
关键词[WOS]CERIUM OXIDE NANOPARTICLES ; ZNO NANOPARTICLES ; AG NANOPARTICLES ; ORGANIC-MATTER ; COPPER ; ACCUMULATION ; NANOMATERIALS ; CEO2 ; ZINC ; TRANSLOCATION
文章类型Article
语种英语
WOS研究方向Engineering ; Environmental Sciences & Ecology
WOS记录号WOS:000400723200019
引用统计
被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cn/handle/133337/22515
专题中科院海岸带环境过程与生态修复重点实验室
作者单位1.Zhejiang Univ, Dept Environm Engn, Coll Environm & Resource Sci, Hangzhou 310058, Zhejiang, Peoples R China
2.Donghua Univ, Dept Environm Sci, Coll Environm Sci & Engn, Shanghai 201620, Peoples R China
3.Zhejiang Bestwa Environm Protect Sci & Technol Co, Hangzhou 310015, Zhejiang, Peoples R China
4.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc, Yantai 264003, Peoples R China
5.Zhejiang Univ, State Key Lab Water Pollut Control & Environm Saf, Hangzhou 310058, Zhejiang, Peoples R China
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Peng, Cheng,Xu, Chen,Liu, Qinglin,et al. Fate and Transformation of CuO Nanoparticles in the Soil-Rice System during the Life Cycle of Rice Plants[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2017,51(9):4907-4917.
APA Peng, Cheng,Xu, Chen,Liu, Qinglin,Sun, Lijuan,Luo, Yongming,&Shi, Jiyan.(2017).Fate and Transformation of CuO Nanoparticles in the Soil-Rice System during the Life Cycle of Rice Plants.ENVIRONMENTAL SCIENCE & TECHNOLOGY,51(9),4907-4917.
MLA Peng, Cheng,et al."Fate and Transformation of CuO Nanoparticles in the Soil-Rice System during the Life Cycle of Rice Plants".ENVIRONMENTAL SCIENCE & TECHNOLOGY 51.9(2017):4907-4917.
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