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- W2969804788 endingPage "122596" @default.
- W2969804788 startingPage "122596" @default.
- W2969804788 abstract "Abstract A highly efficient Au/Fe3O4 nanocatalyst is fabricated by using a seed deposition method, and is characterized by XRD, TEM, EDS, XPS, UV–vis and VSM, respectively. TEM image shows that small Au nanoparticles are immobilized onto Fe3O4 surface uniformly and densely. After immersion treatment by NaBH4, the Au/Fe3O4 nanocatalyst exhibits high catalytic efficiency in reducing 4-nitrophenol to 4-aminophenol. The 4-nitrophenol could be fully degraded in less than one minute. The Au/Fe3O4 nanocatalyst demonstrate good magnetic recoverability and high conversion in 1 min (>98%) after 8 successive cycles. The reaction rate constant k of the catalyst with volume Au sol/mass Fe3O4 microspheres ratio 3 (Au/FeO-3) is 13.8 min−1, which is 4.7 times larger than that of Au/FeO-1. The catalytic mechanisms were discussed. This work provides a simple and environmentally friendly method for preparing magnetic noble nanocatalyst used for 4-nitrophenol reduction." @default.
- W2969804788 created "2019-08-29" @default.
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- W2969804788 date "2020-02-01" @default.
- W2969804788 modified "2023-10-14" @default.
- W2969804788 title "Facile fabrication of Au/Fe3O4 nanocomposites as excellent nanocatalyst for ultrafast recyclable reduction of 4-nitropheol" @default.
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- W2969804788 doi "https://doi.org/10.1016/j.cej.2019.122596" @default.
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