Magnetically Separable Fe3O4 Nanoparticles-Decorated Reduced Graphene Oxide Nanocomposite for Catalytic Wet Hydrogen Peroxide Oxidation

  • Wei Liu
  • Jing Qian
  • Kun Wang
  • Hui Xu
  • Ding Jiang
  • Qian Liu
  • Xingwang Yang
  • Huaming Li
Article

DOI: 10.1007/s10904-013-9863-4

Cite this article as:
Liu, W., Qian, J., Wang, K. et al. J Inorg Organomet Polym (2013) 23: 907. doi:10.1007/s10904-013-9863-4

Abstract

Fe3O4 nanoparticles-decorated reduced graphene oxide magnetic nanocomposites (Fe3O4/rGO NCs) were prepared by a facile one-step strategy, and further used as heterogeneous Fenton-like catalysts for catalytic wet hydrogen peroxide oxidation (CWHPO) of methylene blue (MB) at 25 °C and atmospheric pressure. The effects of variables such as the Fe3O4/rGO with the mass ratio of rGO, initial pH, MB concentration and H2O2 dosage were investigated. The Fe3O4/rGO NCs with rGO mass ratio of 10.0 wt % showed the highest H2O2-activating ability, which was six-fold than that of pure Fe3O4 nanoparticles (NPs). The resulting catalysts demonstrated high catalytic activity in a broad operation pH range from 5 to 9, and still retained 90.5 % catalytic activity after reuse in five cycles. Taking advantage of the combined benefits of rGO and magnetic Fe3O4 NPs, these Fe3O4/rGO NCs were confirmed as an efficient heterogeneous Fenton-like catalyst for CWHPO to treat organic pollutants. And a reasonable catalytic mechanism of Fe3O4/rGO NCs was proposed to interpret the degradation process.

Keywords

Catalytic wet hydrogen peroxide oxidation Fe3O4 nanoparticles Reduced graphene oxide Magnetically separable catalyst Methylene blue 

Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • Wei Liu
    • 1
  • Jing Qian
    • 1
  • Kun Wang
    • 1
  • Hui Xu
    • 1
  • Ding Jiang
    • 1
  • Qian Liu
    • 1
  • Xingwang Yang
    • 1
  • Huaming Li
    • 1
  1. 1.Key Laboratory of Modern Agriculture Equipment and Technology, School of Chemistry and Chemical EngineeringJiangsu UniversityZhenjiangPeople’s Republic of China

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