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Title Fe3O4 nanoparticles grown on cellulose/GO hydrogels as advanced catalytic materials for the heterogeneous fenton-like reaction
Date 27.03.2019
Number 55812
Abstract 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.
URL https://doi.org/10.1021/acsomega.9b00170
Publisher ACS Omega
Identifier
Citation ACS Omega 4 (2019) 5117-5125
DOI https://doi.org/10.1021/acsomega.9b00170
Authors Chen, Y. ; Pötschke, P. ; Pionteck, J. ; Voit, B. ; Qi, H.
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