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General and Controllable Synthesis of Novel Mesoporous Magnetic Iron Oxide@Carbon Encapsulates for Efficient Arsenic Removal
Author(s) -
Wu Zhangxiong,
Li Wei,
Webley Paul A.,
Zhao Dongyuan
Publication year - 2012
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.201103789
Subject(s) - mesoporous material , materials science , adsorption , nanotechnology , carbon fibers , arsenic , iron oxide , hydrolysis , oxide , nanocomposite , nanoparticle , chemical engineering , organic chemistry , composite number , catalysis , chemistry , metallurgy , composite material , engineering
A facile ammonia‐atmosphere pre‐hydrolysis post‐synthetic route that can uniformly and selectively deposit Fe 2 O 3 nanoparticles in the predefined mesopores (5.6 nm) of a bimodal (2.3, 5.6 nm) mesoporous carbon matrix is demonstrated (see figure). The mesoporous magnetic Fe 2 O 3 @C encapsulates show excellent performance for arsenic capture with remarkable adsorption capacity, fast uptake rate, easy magnetic separation, and good cyclic stability.