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Issue 1, 2015
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Nanocomposites based on Hofmann-type structure NiII(pz)[NiII(CN)4] (pz = pyrazine) nanoparticles for reversible iodine capture

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Abstract

Hybrid nanocomposites based on nanoparticles with the Hofmann-type structure NiII(pz)[NiII(CN)4] (where pz = pyrazine) confined into mesoporous silica or porous glass pearls were synthesised by sequential coordination of the molecular precursors into the pores of the functionalized matrices. Infrared (IR) and UV/Visible (UV-Vis) spectroscopy, powder X-ray diffraction (PXRD), and transmission electron microscopy (TEM) reveal the presence of uniformly-sized spherical NiII(pz)[NiII(CN)4] nanoparticles of 3–6 nm, which are homogeneously dispersed into the matrices. These nanocomposites are able to efficiently capture iodine from cyclohexane solutions with a maximum sorption capacity of 1.75 mmol per g of material. A particular emphasis is given on the mechanism of iodine sorption as well as on the sorption cycling ability of the materials.

Graphical abstract: Nanocomposites based on Hofmann-type structure NiII(pz)[NiII(CN)4] (pz = pyrazine) nanoparticles for reversible iodine capture

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The article was received on 16 Sep 2014, accepted on 22 Oct 2014 and first published on 22 Oct 2014


Article type: Paper
DOI: 10.1039/C4TA04855E
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Citation: J. Mater. Chem. A, 2015,3, 179-188
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    Nanocomposites based on Hofmann-type structure NiII(pz)[NiII(CN)4] (pz = pyrazine) nanoparticles for reversible iodine capture

    G. Massasso, M. Rodriguez-Castillo, J. Long, A. Grandjean, B. Onida, Y. Guari, Ch. Guerin and J. Larionova, J. Mater. Chem. A, 2015, 3, 179
    DOI: 10.1039/C4TA04855E

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