|Table of Contents|

[1] Cao Chong, Huang Juan, Hu Qian, Cai Wenshu, et al. Migration of silver nanoparticles in an aquatic systemwith Eichhornia crassipes [J]. Journal of Southeast University (English Edition), 2018, 34 (2): 269-275. [doi:10.3969/j.issn.1003-7985.2018.02.017]
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Migration of silver nanoparticles in an aquatic systemwith Eichhornia crassipes()
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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:
34
Issue:
2018 2
Page:
269-275
Research Field:
Environmental Science and Engineering
Publishing date:
2018-06-20

Info

Title:
Migration of silver nanoparticles in an aquatic systemwith Eichhornia crassipes
Author(s):
Cao Chong;  Huang Juan;  Hu Qian;  Cai Wenshu
School of Civil Engineering, Southeast University, Nanjing 210096, China
Keywords:
silver nanoparticles;  aquatic system;  migration;  sedimentation;  plant uptake
PACS:
X503.23
DOI:
10.3969/j.issn.1003-7985.2018.02.017
Abstract:
The migration and dissolution of AgNPs in an aquatic system with plants was investigated. By using a hydroponic system with Eichhornia crassipes, the absorption and transportation processes of silver nanoparticles were investigated. The results show that AgNPs concentrations in the water phase declined with the increase in time, and the reduction degree was dependent on the initial concentrations of AgNPs. The silver concentrations in the roots(r=0.98, p<0.05), stems and leaves(r=1, p<0.001)were significantly positively correlated with the initial concentrations of AgNPs. Silver nanoparticles accumulated in plant roots more than stems and leaves. Compared with the addition of AgNO3 at identical concentrations, lower removal rates of silver and plant uptake were observed in the AgNPs stress systems. A significant positive correlation was also found between the initial AgNPs concentrations and the removed amount of silver(r=0.99, p<0.001). For AgNPs, the primary removal mechanisms in these aquatic systems were agglomeration and sedimentation, while the absorption by plants had a relatively weak contribution.

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Memo

Memo:
Biographies: Cao Chong(1991—), male, Ph.D.candidate; Huang Juan(corresponding author), female, doctor, associate professor, 101010942@seu.edu.cn.
Foundation items: The National Natural Science Foundation of China(No.51479034, 5151101102), Fundamental Research Funds for the Central Universities(No.2242016R30008).
Citation: Cao Chong, Huang Juan, Hu Qian, et al. Migration of silver nanoparticles in an aquatic system with Eichhornia crassipes[J].Journal of Southeast University(English Edition), 2018, 34(2):269-275.DOI:10.3969/j.issn.1003-7985.2018.02.017.
Last Update: 2018-06-20