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Self‐Assembled 3D Flowerlike Iron Oxide Nanostructures and Their Application in Water Treatment
Author(s) -
Zhong L.S.,
Hu J.S.,
Liang H.P.,
Cao A.M.,
Song W.G.,
Wan L.J.
Publication year - 2006
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200600504
Subject(s) - calcination , materials science , ethylene glycol , ferric , nanostructure , oxide , iron oxide , chloride , chemical engineering , ethylene oxide , nanotechnology , inorganic chemistry , catalysis , organic chemistry , metallurgy , chemistry , polymer , copolymer , engineering , composite material
An ethylene‐glycol‐mediated self‐assembly process is adopted to synthesize 3D flowerlike nanostructures of iron oxide (see figure) using inexpensive and nontoxic ferric chloride. A two‐stage growth process is identified during the morphological evolution of the iron oxide precursor. α‐Fe 2 O 3 , γ‐Fe 2 O 3 , and Fe 3 O 4 with the same flowerlike structure are readily obtained from the same precursor but by different calcination procedures. The as‐obtained iron oxides show excellent ability to remove various pollutants from water.