4.8 Article

General and Controllable Synthesis of Novel Mesoporous Magnetic Iron Oxide@Carbon Encapsulates for Efficient Arsenic Removal

Journal

ADVANCED MATERIALS
Volume 24, Issue 4, Pages 485-+

Publisher

WILEY-BLACKWELL
DOI: 10.1002/adma.201103789

Keywords

mesoporous carbon; metal oxide nanoparticles; confined synthesis; arsenic removal

Funding

  1. Australian Research Council [DP0879769]
  2. NSF of China [20890123]
  3. State Key 863 Basic Research Program [2009AA033701]

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A facile ammonia-atmosphere prehydrolysis 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.

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