AI Article Synopsis
- The γ-Fe2O3/C nanocomposite was synthesized using a one-pot method, where Fe3O4/Starch was oxidized and carbonized at 250 °C, resulting in a material with strong magnetism and effective adsorption of organic molecules.
- The adsorption studies demonstrated that the composite can quickly reach equilibrium in about 15 minutes, with a maximum capacity for methylene blue (MB) at 64.9 mg g-1 at 303 K.
- The research indicates that the γ-Fe2O3/C composite, which fits the Langmuir adsorption model and follows pseudo-second order kinetics, offers a new approach to creating magnetic carbon-based materials with potential applications in water treatment.
Article Abstract
γ-Fe2O3/C nanocomposite was prepared through a convenient method by which one-pot synthesized Fe3O4/Starch was oxidized and carbonized by calcining at 250 °C. The γ-Fe2O3/C displayed strong magnetism and could adsorb organic molecules from aqueous solution effectively, thus it showed promising application in the dislodgement of organic pollutants in sewage. Adsorption isotherms and kinetics of methylene blue (MB) onto γ-Fe2O3/C were studied in a batch system. The adsorption process reached equilibrium in about 15 min, and the maximum adsorption capacity of MB was found to be 64.9 mg g-1 at 303 K. Adsorption isotherms were well fitted to Langmuir model and the adsorption kinetics could be described by the pseudo-second order kinetic equation. The findings of the present work highlight a new facile method to fabricate magnetic carbon-based composites and the obtained γ-Fe2O3/C with excellent magnetic property and adsorption performance hold great promise for practical application in water treatment.
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| http://dx.doi.org/10.1166/jnn.2015.10281 | DOI Listing |
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