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Synthesis of a magnetic micro/nano Fe x O y -CeO2 composite and its application for degradation of hexachlorobenzene

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Abstract

A micrometer-sized nanostructured, magnetic, ball-like Fe x O y -CeO2 composite was synthesized through an ethylene-glycol mediated process. The synthesized samples were characterized by scanning electron microscopy combined with energydisperse X-ray analysis, transmission electron microscopy and X-ray powder diffraction. In the synthesis system, polyethylene glycol (PEG) and urea were found to play significant roles in the formation of the micrometer-sized spherical architecture of the precursor. The details of morphology and particle size could be changed with the initial concentration of Fe(NO3)3·9H2O and Ce(NO3)3·6H2O as the reactants. The magnetic Fe x O y -CeO2 composite with a similar morphology was readily obtained by calcination from the precursor. The characterization of transmission electron microscopy showed the calcined ball-like architecture was a highly porous structure consisting of many nanoparticles. Because of the micrometer-sized nanostructure and the multi-components as well as the magnetism, the as-obtained Fe x O y -CeO2 composite showed better activity and potentially easy recovery for the harmless degradation of hexachlorobenzene (HCB).

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Authors and Affiliations

  1. State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China

    ManKe Jia, GuiJin Su, MingHui Zheng, Bing Zhang & ShiJing Lin

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  1. ManKe Jia
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  2. GuiJin Su
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  3. MingHui Zheng
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  4. Bing Zhang
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  5. ShiJing Lin
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Correspondence to GuiJin Su or MingHui Zheng.

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Jia, M., Su, G., Zheng, M. et al. Synthesis of a magnetic micro/nano Fe x O y -CeO2 composite and its application for degradation of hexachlorobenzene. Sci. China Chem. 53, 1266–1272 (2010). https://doi.org/10.1007/s11426-010-3164-3

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