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Synthesis and Alignment of Iron Oxide Nanoparticles in a Regenerated Cellulose Film
Author(s) -
Liu Shilin,
Zhou Jinping,
Zhang Lina,
Guan Jianguo,
Wang Jianbo
Publication year - 2006
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200600543
Subject(s) - nanocomposite , materials science , nanoparticle , chemical engineering , cellulose , film plane , oxide , microporous material , polymer , iron oxide , composite material , nanotechnology , magnetization , magnetic anisotropy , engineering , physics , quantum mechanics , magnetic field , metallurgy
Summary: A polymer‐iron oxide nanocomposite film has been successfully synthesized by using a microporous regenerated cellulose film as template and aqueous ferrous chloride as precursor. The nanocomposite film was investigated with XRD, XPS, SEM, TEM, and VSM. The nanoparticles synthesized in situ were disk‐shaped with a mean diameter of ≈24 and thicknesses of 2.5–3.5 nm. For the first time, the nanodisks were well aligned in the cellulose matrix to form an ordered multibilayer structure by the shrinkage of the hybrid film while drying. The nanocomposite film displayed anisotropic magnetic properties as a result of the alignment of magnetic nanodisks. This work provides a novel and facile method for template synthesis of nanoparticles and aligned nanocomposites.TEM image of the air‐dried nanocomposite film; slice perpendicular to the film plane.