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Issue 10, 2011
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Magnetically separable Prussian blue analogue Mn3[Co(CN)6]2·nH2O porous nanocubes as excellent absorbents for heavy metal ions

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Abstract

The application of Prussian blue analogue (PBA) Mn3[Co(CN)6]2·nH2O porous nanocubes as absorbents for heavy metal ions has been demonstrated. The result indicates that Mn3[Co(CN)6]2·nH2O porous nanocubes with average diameter of 240 nm possess excellent adsorption efficiency for Pb2+ ions (94.21% at initial Pb2+ concentration of 10 mg L−1). Moreover, Mn3[Co(CN)6]2·nH2O porous nanocubes can also show high adsorption efficiency on heavy metal ions even in a strong acidic solution due to its chemical stability. Notably, an external magnet could be used to accelerate the separation of Mn3[Co(CN)6]2·nH2O from the treated solution. It is suggested that the high adsorption efficiency may derive from the large surface area, M3II[MIII(CN)6]2·nH2O porous framework structure and affinity between polarizable π-electron clouds of the cyanide bridges and heavy metals ions.

Graphical abstract: Magnetically separable Prussian blue analogue Mn3[Co(CN)6]2·nH2O porous nanocubes as excellent absorbents for heavy metal ions

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Publication details

The article was received on 18 May 2011, accepted on 02 Aug 2011 and first published on 24 Aug 2011


Article type: Paper
DOI: 10.1039/C1NR10506J
Nanoscale, 2011,3, 4270-4274

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    Magnetically separable Prussian blue analogue Mn3[Co(CN)6]2·nH2O porous nanocubes as excellent absorbents for heavy metal ions

    L. Hu, J. Mei, Q. Chen, P. Zhang and N. Yan, Nanoscale, 2011, 3, 4270
    DOI: 10.1039/C1NR10506J

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