期刊
CARBOHYDRATE POLYMERS
卷 155, 期 -, 页码 19-27出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2016.08.038
关键词
Adsorption; Tetracycline; Cadmium; Chitosan; Ion-imprinted; Combined pollution
资金
- National Natural Science Foundation of China [51508186]
- Hunan Provincial Natural Science Foundation of China [2016113076]
- Scientific Research Fund of Hunan Provincial Education Department, China [15C0654]
- Scientific Research Staring Foundation for the introduced talents of Hunan Agricultural University [14YJ07]
- Youth Foundation of Hunan Agricultural University [15QN32]
A novel composite of carbon disulfide-modified magnetic ion-imprinted chitosan-Fe(III), i.e., MMIC-Fe(III) composite, was prepared as an efficient adsorbent for the simultaneous removal of tetracycline (TC) and Cd(II). This adsorbent showed excellent performance in removing TC and Cd(II) due to its rapid kinetics, high adsorption capacity, good reusability, and was well suited for use with real water samples. Kinetics studies demonstrated that the adsorption proceeded according to a pseudo-second order model. The adsorption isotherms were well described by the Langmuir model, with maximum adsorption capacity for TC and Cd(II) being 516.29 and 194.31 mg/g, respectively. The synergistic effect of TC and Cd(II) adsorption might be due to the formation of TC-Cd(II) complex bridging the adsorbate and adsorbent. These properties demonstrate the potential application of MMIC-Fe(III) for the simultaneous removal of TC and Cd(II), and may provide some information for the synergistic removal of antibiotics and heavy metals from aquatic environments. (C) 2016 Elsevier Ltd. All rights reserved.
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