Authors
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Chen, Y. ; Pötschke, P. ; Pionteck, J. ; Voit, B. ; Qi, H.
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Title
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Fe3O4 nanoparticles grown on cellulose/GO hydrogels as advanced catalytic materials for the heterogeneous fenton-like reaction
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Date
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27.03.2019
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Number
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55812
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Abstract
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Cellulose/graphene oxide (GO)/iron oxide (Fe3O4) composites were prepared by coprecipitating iron salts onto cellulose/GO hydrogels in a basic solution. X-ray photoelectron spectroscopy (XPS), Fourier-transform infrared, and X-ray diffraction characterization showed that Fe3O4 was successfully coated on GO sheets and cellulose. Cellulose/GO/Fe3O4 composites showed excellent catalytic activity by maintaining almost 98% of the removal of acid orange 7 (AO7) and showed stability over 20 consecutive cycles. This performance is attributable to the synergistic effect of Fe3O4 and GO during the heterogeneous Fenton-like reaction. Especially, the cellulose/GO/Fe3O4 composites preserve their activity by keeping the ratio of Fe3+/Fe2+ at 2 even after 20 catalysis cycles, which is supported by XPS analysis.
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Publisher
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ACS Omega
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Wikidata
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Citation
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ACS Omega 4 (2019) 5117-5125
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DOI
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https://doi.org/10.1021/acsomega.9b00170
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Tags
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