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Abstract
Iron oxide/carbon nanocatalysts were successfully synthesized by the calcination of ferrocenium at high temperatures ranging from 500 to 900 °C. Then the synthesized nanocomposites were characterized by XRD (X-Ray Diffraction), TEM (Transmission Electron Microscopy), VSM (Vibrating-Sample Magnetometry), BET (Brunauer-Emmett-Teller surface area measurements), TGA (Thermogravimetric Analysis), XPS (X-Ray Photoelectron Spectroscopy), EPR (Electron Paramagnetic Resonance), and CHN elemental analysis. The prepared nanocatalysts were applied for the decomposition of methylene blue as a model in wastewater treatment. It was unexpected to discover that the prepared nanocatalysts were highly active for the reaction with methylene blue in the dark even though no excess of hydrogen peroxide was added. The nanocatalyst calcined at 800 °C exhibited the rod shape with the best catalytic activity. The nanocatalysts could be reused for 12 times without the significant loss of the catalytic activity.
Highlights
The increasing population and rapid growth of urbanization has led to the increasing shortage of clean water and a higher demand for wastewater treatment [1,2]
Iron oxide/carbon nanocomposites were successfully prepared from the calcination of ferrocenium
The decomposition of methylene blue was tested for the catalytic activity of iron oxide/carbon nanocomposites
Summary
The increasing population and rapid growth of urbanization has led to the increasing shortage of clean water and a higher demand for wastewater treatment [1,2]. The paper mill nanocomposites [27], ferrocenated compounds [28,29], Fe-doped Sr2 Bi2 O5 [30], Fe3 O4 –wheat straw [31], sludge-derived magnetically separable heterogeneous catalyst for the Fenton-like reaction by iron oxide (Fe3 O4 , γ-Fe2 O3 , α-Fe2 O3 )/cellulose [32], α-Fe2 O3 /TiO2 [33], α-Fe2 O3 /MCM-41 [34], Fe (II)Fe degradation of MB was studied; the Fe-loaded sludge was calcined in air at 380 °C for 2 h into the (III)-LDHs [35], ZrFe2 O5 [36], and α-Fe2 O3 /Bi2 MoO6 [37]. Novel ferrocene-derived iron oxides/carbon nanocatalysts showing high activities for the the catalysts were characterized by transmission electron microscopy (TEM), X-ray photoelectron. Flame atomic absorption spectroscopy (FAAS), and electrospray ionization mass spectroscopy (ESI–MS)
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