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Issue 11, 2011
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β-Cyclodextrin-modified hybrid magnetic nanoparticles for catalysis and adsorption

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Abstract

β-Cyclodextrin-modified hybrid magnetic nanoparticles (Fe3O4@SiO2-PGMACD) were synthesized via the combination of atom transfer radical polymerization on the surfaces of silica coated iron oxide particles (Fe3O4@SiO2) and ring-opening reaction of epoxy groups. The feasibility of using Fe3O4@SiO2-PGMACD as separable immobilized catalyst and adsorbent was demonstrated. It was found: (1) the prepared Fe3O4@SiO2-PGMACD could be used as catalyst in substrate-selective oxidation of alcohols system and the catalytic efficiency was close to pure β-Cyclodextrin of equal quantity; (2) the resulting particles appeared remarkably dominant adsorption capacity compared with poly(glycidyl methacrylate) grafted magnetic nanoparticles (Fe3O4@SiO2-PGMA) in the removal of bisphenol A from aqueous solutions. The results suggest that the novel fabricated nanoparticles could serve as bifunctional materials in catalysis or adsorption and subsequently become potential multifunctional materials.

Graphical abstract: β-Cyclodextrin-modified hybrid magnetic nanoparticles for catalysis and adsorption

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Publication details

The article was received on 18 Oct 2010, accepted on 29 Nov 2010 and first published on 31 Jan 2011


Article type: Paper
DOI: 10.1039/C0JM03513K
Citation: J. Mater. Chem., 2011,21, 3704-3710
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    β-Cyclodextrin-modified hybrid magnetic nanoparticles for catalysis and adsorption

    Y. Kang, L. Zhou, X. Li and J. Yuan, J. Mater. Chem., 2011, 21, 3704
    DOI: 10.1039/C0JM03513K

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