One-pot size and shape controlled synthesis of DMSO capped iron oxide nanoparticles |
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Authors: | Debanjan Guin Sunkara V Manorama S Radha AK Nigam |
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Affiliation: | (1) Nanomaterials Laboratory, Indian Institute of Chemical Technology, 500 007 Hyderabad, India;(2) Physics Department, Sophia College, 400 026 Mumbai, India;(3) Department of Condensed Matter Physics, Tate Institute of Fundamental Research, 400 005 Mumbai, India |
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Abstract: | We report here the capping of iron oxide nanoparticles with dimethyl sulfoxide (DMSO) to make chloroform soluble iron oxide
nanoparticles. Size and shape of the capped iron oxide nanoparticles are well controlled by simply varying the reaction parameters.
The synthesized nanocrystallites were characterized by thermal analysis (TG-DTA), powder X-ray diffraction (XRD), transmission
electron microscopy (TEM) for evaluating phase, structure and morphology. 1H NMR spectra of the synthesized samples confirm DMSO, and the capping of DMSO on the ferrite samples. Shift of the S=O stretching
frequency in Fourier transformed infra-red (FTIR) spectra indicates that the bonding between DMSO and ferrite is through an
oxygen moiety. The magnetic measurements of all the synthesized samples were investigated with a SQUID magnetometer which
shows that the magnetic properties are strongly dependent on the size as well as shape of the iron oxide. |
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Keywords: | Iron oxide thermal decomposition TEM VSM |
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