Norfloxacin sorption and its thermodynamics on surface-modified carbon nanotubes

Environmental Science & Technology
Zhenyu WangBaoshan Xing

Abstract

Adsorption on carbon nanotubes (CNTs) may affect the environmental behavior of organic contaminants including antibiotics. In this study, sorption of norfloxacin (NOR) onto graphitized multiwall CNTs (G-CNTs), carboxylated multiwall CNTs (C-CNTs), hydroxylated multiwall CNTs (H-CNTs), and activated carbon (AC) was investigated. All sorption isotherms were highly nonlinear and were fitted well by Freundlich and Polanyi-Manes models. AC showed the highest NOR sorption capacity because of its highest surface area. H-CNTs had much higher NOR sorption than C-CNTs, and the pi-pi electron donor-acceptor (EDA) interactions could explain the distinction between the two types of CNTs. Comparison of sorption coefficients at different pHs indicates that hydrophobic and electrostatic interaction also played major roles in sorption of NOR on CNTs. Furthermore, high sorption capacity and hysteresis of NOR on CNTs were demonstrated in this study, which needs to be considered for predicting environmental risks of CNTs and NOR. The results from thermodynamic analysis show that sorption of NOR on AC and CNTs was thermodynamically favorable and generally endothermic. Sorption site energy analysis illustrates a distribution of sorption energy, cons...Continue Reading

References

Feb 5, 2003·Environmental Science & Technology·Washington J BraidaBaoshan Xing
May 6, 2005·Environmental Science & Technology·Dongqiang Zhu, Joseph J Pignatello
May 13, 2005·Journal of Environmental Quality·Michael SanderJoseph J Pignatello
Mar 1, 2006·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Yu WangSihuan Wang
Mar 31, 2006·Environmental Science & Technology·Kun YangBaoshan Xing
Jun 17, 2006·Environmental Pollution·Kun Yang, Baoshan Xing
Sep 30, 2006·Environmental Science & Technology·Kun YangBaoshan Xing
May 31, 2007·Environmental Science & Technology·Aaron P RobertsStephen J Klaine
Jul 3, 2007·Journal of Colloid and Interface Science·Suzana GotovacKatsumi Kaneko
Jan 19, 2008·Environmental Science & Technology·Xilong Wang, Baoshan Xing
Feb 26, 2008·Journal of Colloid and Interface Science·X M YanH X Tang
May 24, 2008·Environmental Science & Technology·Hyun-Hee ChoWilliam P Ball
Aug 5, 2008·Microbial Ecology·Mindy G Brown, David L Balkwill
Aug 30, 2008·Environmental Science & Technology·Bo PanBaoshan Xing
Oct 16, 2008·Environmental Science & Technology·Wei ChenDongqiang Zhu
Oct 23, 2008·Environmental Science & Technology·Daohui Lin, Baoshan Xingt
Dec 17, 2008·Environmental Science & Technology·Guang-Cai ChenGary Owens
Dec 17, 2008·Environmental Pollution·Kun Yang, Baoshan Xing
Jan 23, 2009·The Science of the Total Environment·Saioa ZoritaLennart Mathiasson
Jan 30, 2009·Environmental Science & Technology·Bo Pan, Baoshan Xing
Jun 24, 2009·Environmental Science & Technology·Marco Keiluweit, Markus Kleber
Jan 30, 2010·Journal of Environmental Sciences (China)·Jie ZhangLaosheng Wu
Jul 1, 1995·Environmental Science & Technology·M C CarterW J Weber

❮ Previous
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Citations

Apr 23, 2013·Journal of Hazardous Materials·Hao ChenCheng Gu
Jun 9, 2014·Chemosphere·Yolanda PatiñoSalvador Ordóñez
Mar 31, 2012·Journal of Environmental Management·Qin ZhangGuan-Yi Huang
Dec 27, 2011·Journal of Hazardous Materials·Zhiguo PeiBei Wen
Jan 7, 2014·The Science of the Total Environment·Xiaoping LiaoMulindankaka Evalde
Jul 7, 2014·Chemosphere·Joanna MaszkowskaAnna Białk-Bielińska
Apr 15, 2016·Environmental Science and Pollution Research International·Rusul Khaleel IbrahimShaliza Ibrahim
Oct 22, 2014·Environmental Science and Pollution Research International·Fei YuDongsu Bi
May 18, 2016·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Xingmao Ma, Sarang Agarwal
Feb 1, 2014·Applied Spectroscopy·Anatoly S BuchelnikovMaxim P Evstigneev
Jan 24, 2019·Nanomaterials·Hongmei TangDan John Leslie Brett
Sep 17, 2013·Chemistry Central Journal·Petra JacksonHåkan Wallin
Nov 9, 2018·Current Medicinal Chemistry·Georgeta M SimuCristina A Dehelean
May 31, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Hiba Mohamed AmeenBeáta Lemli
Aug 24, 2010·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Xin ZhangJuan Hou
Feb 3, 2011·Journal of Environmental Quality·Daohui LinBaoshan Xing
Mar 25, 2014·Environmental Science and Pollution Research International·Donglei LuTianhu Chen
Jun 7, 2019·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Xian Chen, Ching-Ju Monica Chin
Mar 24, 2018·Environmental Science and Pollution Research International·Longfei LiuXiaofei Tian
Jul 4, 2012·Journal of Environmental Quality·Ingrid RosendahlWulf Amelung
Nov 4, 2020·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·María E Zelaya SouléMariela A Fernández
Dec 1, 2020·Environmental Technology·Qianqian YinYonghua Li

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