Journal
MICROPOROUS AND MESOPOROUS MATERIALS
Volume 234, Issue -, Pages 176-185Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.micromeso.2016.07.016
Keywords
Ion-imprinted polymer; SBA-15 mesopores microreactor; Fe3O4 nanoparticles; RAFT polymerization
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Funding
- 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 [2014T70488]
- Natural science fund for Colleges and Universities in Jiangsu Province [16KJB530002, 15KJB550003]
- Society Development Fund of Zhenjiang [SH2012021, SH2013110]
- Programs of Senior Talent Foundation of Jiangsu University [15JDG024]
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Ce(III) ion-imprinted polymer (Ce(III)-IIP) grafted on Fe3O4 nanoparticles supported by SBA-15 mesopores microreactor was successfully synthesized via reversible addition-fragmentation chain transfer (RAFT) polymerization for selective removal of Ce(III) from aqueous solution. The characterization results suggest that the surface ion-imprinted polymer (IIP) synthesized by RAFT is a thin layer. Adsorption isotherm experiments indicated that Redlich-Peterson isotherm model best fitted the experimental data and the adsorption capacity of IIP was obviously higher than that of non-imprinted polymers (NIP) at the same conditions. The kinetics of adsorption followed the Thomas model. Moreover, competitive adsorption studies illustrated that Ce(III)-IIP offers the advantages of selectivity towards Ce(III) compared with NIP even in the presence of other metal ions. All above results indicated the potential application of Ce(III)-IIP for selective removal of Ce(III) from aqueous solution. (C) 2016 Elsevier Inc. All rights reserved.
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