Formation of a three-dimensional microstructure of Fe3O4-poly(vinyl alcohol) composite by evaporating the hydrosol under a magnetic field.
In this paper, we report on the self-assembly formation of three-dimensional microstructures of Fe3O4 hydrosol. First, we perform new, facile, and direct fabrication of a stable hydrosol of Fe3O4 nanoparticles, based on the sonolysis of an aqueous solution of iron acetate in the presence of PVA-100,000. This is then followed by investigations of the formation of different microstructures obtained on drying a drop of the water suspension on a glass microscope substrate. The evaporation was carried out both without and in the presence of an external magnetic field.
Abu-Much
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Department of Chemistry and Kanbar Laboratory for Nanomaterials at the Bar-Ilan University Center for Advanced Materials and Nanotechnology, Bar-Ilan University, Ramat-Gan 52900, Israel.
Meridor
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Frydman
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Gedanken
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A
D018360:Crystallography, X-Ray; D050091:Dendrimers; D004574:Electromagnetic Fields; D005290:Ferric Compounds / Q000737:chemistry*; D052203:Ferrosoferric Oxide / Q000737:chemistry*; D018625:Microscopy, Atomic Force; D046529:Microscopy, Electron, Transmission; D053758:Nanoparticles; D011142:Polyvinyl Alcohol / Q000737:chemistry*; D016062:Porosity; D013696:Temperature; D014465:Ultrasonics
D050091:Dendrimers; D005290:Ferric Compounds; D011142:Polyvinyl Alcohol; D052203:Ferrosoferric Oxide