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Three-Dimensional Electro-Fenton Degradation of Methyleneblue Based on the Composite Particle Electrodes of Carbon Nanotubes and Nano-Fe3O4

  • Research Article - Special Issue - Chemistry
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Abstract

Carbon nanotubes/magnetic nano-Fe3O4 composite (CNTs/Fe3O4NPs) were prepared by chemical co-precipitation. Ti/SnO2electrode was used as the anode, the CNTs/Fe3O4 composite as particle electrodes, and graphite electrode as cathode respectively. Four different systems for degradation of methylene blue (MB) in neutral medium were investigated: Ti/SnO2 anode (A), Ti/SnO2 anode with CNTs particle electrodes (B), Ti/SnO2anode with Fe3O4NPs particle electrodes (C), and Ti/SnO2anode with CNTs/Fe3O4NPs particle electrodes (D). It was found that D system exhibited much higher MB degradation efficiency than others, attaining 82 % in 30 min. The enhanced efficiency was attributed to Ti/SnO2 anodic direct oxidation of MB and CNTs/Fe3O4 NPs composite particle electrodes which could activate molecule oxygen to produce more H2O2 and ·OH. CNTs/Fe3O4 NPs particle electrodes could achieve magnetic separation easily for reuse and exhibited good degradation efficiency to MB.

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Authors and Affiliations

  1. School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, 710062, China

    Lihua Shen

  2. School of Chemistry and Chemical Engineering, Xi’an University of Science and Technology, Xi’an, 710054, China

    Lihua Shen, Pei Yan, Xiaobin Guo, Haixia Wei & Xiaofeng Zheng

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  1. Lihua Shen
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  2. Pei Yan
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  3. Xiaobin Guo
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  4. Haixia Wei
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  5. Xiaofeng Zheng
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Correspondence to Lihua Shen.

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Shen, L., Yan, P., Guo, X. et al. Three-Dimensional Electro-Fenton Degradation of Methyleneblue Based on the Composite Particle Electrodes of Carbon Nanotubes and Nano-Fe3O4 . Arab J Sci Eng 39, 6659–6664 (2014). https://doi.org/10.1007/s13369-014-1184-6

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  • DOI: https://doi.org/10.1007/s13369-014-1184-6

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