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Issue 14, 2018
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Fabrication of Fe3O4@polydopamine@polyamidoamine core–shell nanocomposites and their application for Cu(II) adsorption

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Abstract

Fe3O4@polydopamine@polyamidoamine (Fe3O4@PDA@PAMAM) core–shell nanocomposites were successfully fabricated through a monodispersed Fe3O4 nanoflower synthesis, PDA modification and PAMAM grafting. The as-prepared single Fe3O4@PDA@PAMAM nanocomposite possesses a high relevant saturation magnetization (Ms) (30.25 emu g−1), while the coercivity (Hc) (10.85 Oe) and retentivity (Mr) (0.9062 emu g−1) were extremely low. The obtained Fe3O4@PDA@PAMAM has an adsorption capacity as high as 97.18 mg g−1 for Cu(II), and the adsorption process is in conformity with pseudo-second-order kinetics and the Langmuir isotherm model. Moreover, the effect of pH and thermodynamics of the adsorption process is also discussed briefly.

Graphical abstract: Fabrication of Fe3O4@polydopamine@polyamidoamine core–shell nanocomposites and their application for Cu(ii) adsorption

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Publication details

The article was received on 15 Apr 2018, accepted on 15 Jun 2018 and first published on 15 Jun 2018


Article type: Paper
DOI: 10.1039/C8NJ01815D
Citation: New J. Chem., 2018,42, 12212-12221
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    Fabrication of Fe3O4@polydopamine@polyamidoamine core–shell nanocomposites and their application for Cu(II) adsorption

    Y. Sun, D. Li, H. Yang and X. Guo, New J. Chem., 2018, 42, 12212
    DOI: 10.1039/C8NJ01815D

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