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Performance of magnetic graphene oxide/diethylenetriaminepentaacetic acid nanocomposite for the tetracycline and ciprofloxacin adsorption in single and binary systems

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成果类型:
期刊论文
作者:
Li, Mei-fang;Liu, Yun-guo;Liu, Shao-bo;Zeng, Guang-ming;Hu, Xin-jiang;Tan, Xiao-fei;Jiang, Lu-hua;Liu, Ni;Wen, Jun;Liu, Xiang-hui
通讯作者:
Liu, Yun-guo(liuyunguo_hnu@163.com)
作者机构:
[Liu, Shao-bo] School of Metallurgy and Environment, Central South University, Lushan South Road, Yuelu District, Changsha 410083, PR China
[Jiang, Lu-hua; Liu, Yun-guo; Zeng, Guang-ming; Tan, Xiao-fei; Liu, Ni; Li, Mei-fang] College of Environmental Science and Engineering, Hunan University, Lushan South Road, Yuelu District, Changsha 410082, PR China
[Jiang, Lu-hua; Zeng, Guang-ming; Tan, Xiao-fei; Liu, Ni; Li, Mei-fang] Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Lushan South Road, Yuelu District, Changsha 410082, PR China
[Liu, Yun-guo] Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Lushan South Road, Yuelu District, Changsha 410082, PR China. Electronic address: liuyunguo_hnu@163.com
[Wen, Jun] College of Agriculture, Guangxi University, University Road, Xixiangtang District, Nanning 530005, PR China
通讯机构:
[Liu, Yun-Guo] Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Lushan South Road, Yuelu District, Changsha 410082, PR China. Electronic address:
语种:
英文
关键词:
Adsorption mechanism - Ciprofloxacin - Diethylenetriamine penta-acetic acids - Experimental conditions - Freundlich isotherm model - Regeneration performance - Tetracycline - Zeta potential measurements
期刊:
Journal of Colloid and Interface Science
ISSN:
0021-9797
年:
2018
卷:
521
页码:
150-159
文献类别:
WOS:Article;EI:Journal article (JA)
所属学科:
ESI学科类别:化学;WOS学科类别:Chemistry, Physical
入藏号:
WOS:000430526700017;EI:20181204926888;PMID:29567603
基金类别:
National Natural Science Foundation of China [51609268, 51521006, 51608208]; International S&T Cooperation Program of China [2015DFG92750]; Guangdong Natural Science Foundation [2016A030310246]; Science and Technology Planning Project of Hunan Province [2016SK2010, 2016SK2001]
机构署名:
本校为其他机构
院系归属:
环境科学与工程学院
摘要:
Adsorption of tetracycline (TC) and ciprofloxacin (CIP) in single and binary systems by diethylenetriamine-pentaacetic acid-functionalized magnetic graphene oxide (DDMGO) was explored. DDMGO were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS) and zeta potential measurements. The adsorption kinetics and equilibrium data of single antibiotic were well fitted by pseudo-second-order and Freundlich isotherm models, respectively. Negative Delta G degrees values hinted the spontaneous nature of TC and CIP sorption. Moreover, the Delta H degrees was positive for TC removal and negative for CIP removal, indicating that TC adsorption was endothermic and CIP adsorption was exothermic. Various experimental conditions (pH, ionic strength and foreign ions) presented an important influence on TC and CIP removal. In binary systems, TC sorption onto DDMGO exhibited stronger inhibition effect by the coexisting competitive antibiotics than that for CIP. The reusability experiment revealed that the DDMGO had an excellent regeneration performance in single and binary systems. TC and CIP removal mechanism on DDMGO was mainly dependent on pi-pi interaction, hydrogen bonds and amidation reaction. Besides, TC and CIP uptake could also be explained by cation-pi and electrostatic interaction, respectively. These findings showed that DDMGO was an efficient and reusable adsorbent for antibiotics elimination. (C) 2018 Elsevier Inc. All rights reserved.
参考文献:
Ai LH, 2012, CHEM ENG J, V192, P156, DOI 10.1016/j.cej.2012.03.056
Cao MH, 2016, J COLLOID INTERF SCI, V467, P129, DOI 10.1016/j.jcis.2016.01.005
Carabineiro SAC, 2012, CATAL TODAY, V186, P29, DOI 10.1016/j.cattod.2011.08.020
Chen H, 2015, J HAZARD MATER, V282, P201, DOI 10.1016/j.jhazmat.2014.03.063
Chen J, 2017, BIORESOURCE TECHNOL, V238, P70, DOI 10.1016/j.biortech.2017.04.023

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