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Effect of Cu(II) ions on the enhancement of tetracycline adsorption by Fe3O4@SiO2-Chitosan/graphene oxide nanocomposite

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WOS被引频次:63
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成果类型:
期刊论文
作者:
Huang, Binyan;Liu, Yunguo*;Li, Bin;Liu, Shaobo;Zeng, Guangming;Zeng, Zhiwei;Wang, Xiaohua;Ning, Qimeng;Zheng, Bohong;Yang, Chunping
通讯作者:
Liu, Yunguo
作者机构:
[Liu, Yunguo; Zeng, Guangming; Ning, Qimeng; Yang, Chunping; Wang, Xiaohua; Zeng, Zhiwei; Huang, Binyan] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China.
[Liu, Yunguo; Zeng, Guangming; Ning, Qimeng; Yang, Chunping; Wang, Xiaohua; Zeng, Zhiwei; Huang, Binyan] Hunan Univ, Minist Educ, Key Lab Environm Biol & Pollut Control, Changsha 410082, Hunan, Peoples R China.
[Li, Bin] Changsha Econ & Tech Dev Zone Water Purificat Eng, Changsha 410100, Hunan, Peoples R China.
[Liu, Shaobo] Cent S Univ, Sch Met & Environm, Changsha 410083, Hunan, Peoples R China.
[Liu, Shaobo; Zheng, Bohong] Cent S Univ, Sch Architecture & Art, Changsha 410083, Hunan, Peoples R China.
通讯机构:
[Liu, Yunguo] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China.
语种:
英文
关键词:
Graphene oxide;Chitosan;Tetracycline (TC);Cu(II);Adsorption
期刊:
Carbohydrate Polymers
ISSN:
0144-8617
年:
2017
卷:
157
页码:
576-585
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, Applied;Chemistry, Organic;Polymer Science
入藏号:
WOS:000391896800065;EI:20164502989314
机构署名:
本校为其他机构
院系归属:
冶金与环境学院
建筑与艺术学院
摘要:
Fe<inf>3</inf>O<inf>4</inf>@SiO<inf>2</inf>-Chitosan/GO (MSCG) nanocomposite was investigated by various techniques (SEM, TEM, XRD, VSM, FT-IR, XPS) for the removal of tetracycline (TC). Effects of pH, zeta potential and initial contaminant concentration were studied in detail. Four background cations (Na<sup>+</sup>, K<sup>+</sup>, Ca<sup>2+</sup>and Mg<sup>2+</sup>) with a concentration of 0.01 M showed little influence on the TC adsorption at the studied pH range while the divalent heavy metal cation Cu(II) could significantly enhance the adsorption. The results indicated that the highest adsorption capacity of TC were 183.47 mmol/kg and 67.57 mmol/kg on MSCG with and without Cu(II), respectively. According to mechanism investigation for the adsorption of TC by pH impact study and XPS analysis, besides electrostatic interaction and &pi;&ndash;&pi;interactions, the Cu(II) also acts as a bridge between TC and MSCG, which significantly improve the adsorption of TC. This study provided valuable guidance and effective method for the removal of TC from aquatic environments. &copy;2016 Elsevier Ltd
参考文献:
Alvarez-Torrellas S, 2016, CHEM ENG J, V283, P936, DOI 10.1016/j.cej.2015.08.023
Caroni ALPF, 2009, J COLLOID INTERF SCI, V340, P182, DOI 10.1016/j.jcis.2009.08.016
Fan HL, 2016, CERAM INT, V42, P4228, DOI 10.1016/j.ceramint.2015.11.098
Gao Y, 2012, J COLLOID INTERF SCI, V368, P540, DOI 10.1016/j.jcis.2011.11.015
Ge HC, 2016, J HAZARD MATER, V308, P225, DOI 10.1016/j.jhazmat.2016.01.042

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