Formation of a three-dimensional microstructure of Fe3O4-poly(vinyl alcohol) composite by evaporating the hydrosol under a magnetic field

被引:48
作者
Abu-Much, R
Meridor, U
Frydman, A
Gedanken, A [1 ]
机构
[1] Bar Ilan Univ, Dept Chem, Ctr Adv Mat & Nanotechnol, IL-52900 Ramat Gan, Israel
[2] Bar Ilan Univ, Kanbar Lab Nanomat, Ctr Adv Mat & Nanotechnol, IL-52900 Ramat Gan, Israel
[3] Bar Ilan Univ, Dept Phys, IL-52900 Ramat Gan, Israel
关键词
D O I
10.1021/jp057123w
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
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.
引用
收藏
页码:8194 / 8203
页数:10
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