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

Authors

  • Zhangxiong Wu,

    1. Department of Chemical Engineering, Faculty of Engineering, Monash University, Melbourne, VIC 3800, Australia
    2. Department of Chemistry and Laboratory of Advanced Materials, Fudan University, Shanghai, 200433, P. R. China
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  • Wei Li,

    1. Department of Chemistry and Laboratory of Advanced Materials, Fudan University, Shanghai, 200433, P. R. China
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  • Paul A. Webley,

    1. Department of Chemical Engineering, Faculty of Engineering, Monash University, Melbourne, VIC 3800, Australia
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  • Dongyuan Zhao

    Corresponding author
    1. Department of Chemical Engineering, Faculty of Engineering, Monash University, Melbourne, VIC 3800, Australia
    2. Department of Chemistry and Laboratory of Advanced Materials, Fudan University, Shanghai, 200433, P. R. China
    • Department of Chemical Engineering, Faculty of Engineering, Monash University, Melbourne, VIC 3800, Australia.

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Abstract

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A facile ammonia-atmosphere pre-hydrolysis post-synthetic route that can uniformly and selectively deposit Fe2O3 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 Fe2O3@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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