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On-line Access: 2014-08-04

Received: 2014-04-25

Revision Accepted: 2014-06-23

Crosschecked: 2014-07-18

Cited: 7

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Journal of Zhejiang University SCIENCE A 2014 Vol.15 No.8 P.653-661

http://doi.org/10.1631/jzus.A1400108


Effects of Cu(II) and Ni(II) ions on adsorption of tetracycline to functionalized carbon nanotubes*


Author(s):  Zhong-yuan Wang1,2, Lin Duan1,2, Dong-qiang Zhu3, Wei Chen1,2

Affiliation(s):  1. Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China; more

Corresponding email(s):   duanlin@nankai.edu.cn

Key Words:  Carbon nanotubes (CNTs), Tetracycline, Adsorption, Complexation


Zhong-yuan Wang, Lin Duan, Dong-qiang Zhu, Wei Chen. Effects of Cu(II) and Ni(II) ions on adsorption of tetracycline to functionalized carbon nanotubes[J]. Journal of Zhejiang University Science A, 2014, 15(8): 653-661.

@article{title="Effects of Cu(II) and Ni(II) ions on adsorption of tetracycline to functionalized carbon nanotubes",
author="Zhong-yuan Wang, Lin Duan, Dong-qiang Zhu, Wei Chen",
journal="Journal of Zhejiang University Science A",
volume="15",
number="8",
pages="653-661",
year="2014",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A1400108"
}

%0 Journal Article
%T Effects of Cu(II) and Ni(II) ions on adsorption of tetracycline to functionalized carbon nanotubes
%A Zhong-yuan Wang
%A Lin Duan
%A Dong-qiang Zhu
%A Wei Chen
%J Journal of Zhejiang University SCIENCE A
%V 15
%N 8
%P 653-661
%@ 1673-565X
%D 2014
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1400108

TY - JOUR
T1 - Effects of Cu(II) and Ni(II) ions on adsorption of tetracycline to functionalized carbon nanotubes
A1 - Zhong-yuan Wang
A1 - Lin Duan
A1 - Dong-qiang Zhu
A1 - Wei Chen
J0 - Journal of Zhejiang University Science A
VL - 15
IS - 8
SP - 653
EP - 661
%@ 1673-565X
Y1 - 2014
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1400108


Abstract: 
The environmental applications and implications of functionalized carbon nanotubes (CNTs) have received much attention. In this study, the adsorption interactions of graphitized multi-walled carbon nanotubes (G-MWCNTs) and functionalized MWCNTs, including hydroxylated MWCNTs (OH-MWCNTs), carboxylated MWCNTs (COOH-MWCNTs), and aminated MWCNTs (NH2-MWCNTs), for tetracycline in the aqueous solution were systemically investigated, and the effects of Cu(II) and Ni(II) (two metal ions commonly present in aquatic environments) on MWCNTs-tetracycline interactions were examined. Results showed that the adsorption affinities followed an order of G-MWCNTs>OH-MWCNTs>COOH-MWCNTs>NH2-MWCNTs, indicating that the adsorptive interactions between MWCNTs and tetracycline can be largely affected by the types and abundance of functionalities on the MWCNTs surfaces. Both Cu(II) and Ni(II) had a negligible effect on the adsorption of tetracycline to G-MWCNTs, but varied effects of the metal ions were observed for the three functionalized MWCNTs. In general, Cu(II) exhibited a more pronounced effect for the adsorption of tetracycline than Ni(II), due to the degree of complexing capability.

Cu(II)和Ni(II)对四环素在官能团化碳纳米管上吸附的影响

研究目的:探究四环素在不同官能团化碳纳米管上的吸附机制,并揭示Cu(II)和Ni(II)对四环素与碳纳米管间作用的影响机制。
创新要点:1.碳纳米管对四环素的吸附与其表面官能团种类密切相关;2.金属离子对碳纳米管吸附四环素的影响能力与金属离子络合性能相关。
研究方法:采用批量吸附试验和谱学手段表征相结合的研究方法。
重要结论:四环素在不同官能化碳纳米管上吸附能力的强弱顺序为:石墨化碳纳米管(G-MWCNTs)>羟基化碳纳米管(OH-MWCNTs)>羧基化碳纳米管(COOH-MWCNTs)>氨基化碳纳米管(NH2-MWCNTs),碳纳米管表面的官能团类型和数量对四环素与碳纳米管间的作用机制有重要影响(表1和图2)。Cu(II)和Ni(II)对四环素在G-MWCNTs上的吸附几乎没有影响,但对在其它三种官能团化的碳纳米管上的吸附表现出不同的影响能力(图3)。与Ni(II)相比,Cu(II)与碳纳米管上官能团具有更强的络合能力,因此Cu(II)对四环素在不同碳纳米管上吸附的影响要比Ni(II)更显著。
官能团化碳纳米管;四环素;吸附;络合

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

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