期刊
CHEMICAL ENGINEERING JOURNAL
卷 302, 期 -, 页码 609-618出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2016.05.097
关键词
Cadmium; Ion-imprinted polymer; GO-based; Microemulsion; RAFT polymerization; Adsorption
资金
- National Natural Science Foundation of China [21207051]
- Ph.D. Programs Foundation of Ministry of Education of China [20123227120015]
- Natural Science Foundation of Jiangsu Province [BK20150483]
- China Postdoctoral Science Foundation [2012M511220, 2014170488]
- Natural Science Fund for Colleges and Universities in Jiangsu Province [15KJB550003]
- Society Development Fund of Zhenjiang [SH2012021, SH2013110]
- Programs of Senior Talent Foundation of Jiangsu University [15JDG024]
In this paper, a novel graphene oxide (GO)-based cadmium-imprinted polymer (Cd(II)-IIP) was firstly prepared via surface ion imprinted technology (SLIT) and reversible addition-fragmentation chain transfer polymerization (RAFT) in microemulsion system. In the polymerization methodology, the RAFT technology was applied to controlling the morphology and functionality of the imprinted polymer. The polymerization was conducted in the microemulsion system to keep stable polymerization process. The obtained Cd(II)-IIP was characterized by FT-IR, SEM, AFM, XRD and TGA, proving to be with uniform morphology, as well as favorable thermal stability. The adsorption properties and selectivity of Cd(II)-HP towards Cd(II) were investigated, indicating high adsorption capacity, fast mass transfer rate and distinct selectivity upon exposure to complex contaminants. In addition, thermodynamic parameters and adsorption-desorption cycles were all studied to comprehensively assess the adsorbent performance. (C) 2016 Elsevier B.V. All rights reserved.
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