Journal
RSC ADVANCES
Volume 6, Issue 53, Pages 47530-47535Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ra05585k
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Funding
- National Natural Science Foundation of China [21272263]
- State Key Laboratory of Natural and Biomimetic Drugs [K20140204]
- ICCAS
- University of Chinese Academy of Sciences Grant [O8JT011J01]
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A novel type of porous magnetic microsphere (Fe3O4@HCP) was firstly synthesized just via one-step Friedel-Crafts alkylation promoted by FeCl3. This universal and facile method to fabricate porous magnetic microspheres possesses distinct advantages such as cheap reactants, mild reaction conditions, a short reaction time and a simple post-treatment process. The core-shell spheres with a well-defined and uniform morphology possess a high Brunauer-Emmett-Teller specific surface area (770 m(2) g(-1)). Besides, the magnetization saturation value reaches up to 18 A m(2) kg(-1) which is high enough to separate Fe3O4@HCP from aqueous solution. Fe3O4@HCP possesses fast adsorption kinetics and an excellent adsorption capacity for organic dyes: methyl orange (211 mg g (1)) and fuchsin basic (231 mg g(-1)). The adsorption-saturated Fe3O4@HCP composites can be easily collected by an external magnetic field and reused at least 3 times after simple Soxhlet extraction and drying.
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