Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 617, Issue -, Pages 76-80Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2014.07.111
Keywords
Composite materials; Nanostructured materials; Chemical synthesis; Oxidation
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Funding
- National Natural Science Foundation of China [51174174, 21266031]
- Excellent Talents in Xinjiang Province [20132013721015]
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The magnetic separable iron oxide/carbon nanocomposites have been prepared with the two-phase hydrothermal-calcination method. The products were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The results of XRD and TEM illustrated that the as-prepared nanocomposites were quasi-spherical Fe3O4 or gamma-Fe2O3 nanoparticles (similar to 20 nm) evenly dispersed on the surfaces of carbon membranes. The as-prepared products were used to investigate their promising adsorptive applications in Congo red (CR) removal. According to the Langmuir equation, the maximum adsorption capacities of the Fe3O4/C nanocomposite and the gamma-Fe2O3/C nanocomposite for CR were calculated to be 48.1 and 105.3 mg g(-1), respectively. This novel synthesis method has the potential to prepare magnetic separable iron oxide/carbon nanocomposites for the removal of CR from aqueous solution. (C) 2014 Elsevier B.V. All rights reserved.
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