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Highly Water‐Soluble Superparamagnetic Ferrite Colloidal Spheres with Tunable Composition and Size
Author(s) -
Cheng Wei,
Tang Kaibin,
Sheng Jie
Publication year - 2010
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201000014
Subject(s) - superparamagnetism , dispersity , ferrite (magnet) , colloid , spheres , composition (language) , materials science , nanotechnology , chemical engineering , magnetization , physics , composite material , polymer chemistry , literature , engineering , art , quantum mechanics , astronomy , magnetic field
From green to red : Highly water‐soluble superparamagnetic monodisperse ferrite colloidal spheres with tunable size and composition have been prepared by a simple one‐step hydrothermal method. The zinc ferrite colloidal spheres show composition‐dependent saturation magnetization. Surprisingly, the Z 0.41 Fe 0.59 Fe 2 O 4 colloidal sphere aqueous suspension can be used for constructing photonic crystals (see figure).