Journal
CHINESE CHEMICAL LETTERS
Volume 26, Issue 9, Pages 1137-1143Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.cclet.2015.05.026
Keywords
Magnetic nanoparticles; MgAl-layered; double-hydroxide; Adsorption; Chromium(VI)
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Funding
- Scientific Research Starting Project of SWPU [2014QH013]
- Open Fund of state key laboratory of Oil & Gas reservoir geology and exploitation [PLN 1126]
- Sichuan Provincial Department of Education Science and Technology Achievement Transformation [14CZ0005]
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Novel magnetic Fe3O4@C@MgAl-layered double-hydroxide (LDH) nanoparticles have been successfully prepared by the chemical self-assembly methods. The properties of surface functional groups, crystal structure, magnetism and surface morphology of magnetic nanoparticles were characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), thermal gravity-differential thermal gravity (TG-DTG), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The adsorption studies of the novel adsorbent in removing heavy metals Cr (VI) from waste water showed that the maximum absorption amount of Cr(VI) was 152.0 mg/g at 40 degrees C and pH 6.0. The excellent adsorption capacity of the Fe3O4@C@MgAl-LDH nano-absorbents plus their easy separation, environmentally friendly composition and reusability makes them more suitable adsorbents for the removal of metal ions from waste water. (C) 2015 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.
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