General and controllable synthesis of novel mesoporous magnetic iron oxide@carbon encapsulates for efficient arsenic removal.
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. 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.
Department of Chemical Engineering, Faculty of Engineering, Monash University, Melbourne, VIC 3800, Australia.
Zhangxiong
Z
Wu
Wei
W
Li
Paul A
PA
Webley
Dongyuan
D
Zhao
D000327:Adsorption; D000641:Ammonia / Q000737:chemistry; D001151:Arsenic / Q000737:chemistry* / Q000302:isolation & purification*; D001272:Atmosphere / Q000737:chemistry; D002214:Capsules; D002244:Carbon / Q000737:chemistry*; D005290:Ferric Compounds / Q000737:chemistry*; D006868:Hydrolysis; D059346:Magnets / Q000737:chemistry*; D016062:Porosity
D002214:Capsules; D005290:Ferric Compounds; C000499:ferric oxide; D002244:Carbon; D000641:Ammonia; D001151:Arsenic