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- W2887415448 abstract "Extraction of uranium(vi) from seawater has attracted much attention for its potential use in the nuclear energy field. In this work, we synthesized graphene oxide-polypyrrole (GO-PPy) through pyrrole monomer polymerization on graphene oxide (GO) with an aqueous solution at low temperature and prepared reduced graphene oxide-polypyrrole-zero-valent iron (rGO-PPy-Fe0) composites by chemical deposition. We characterized rGO-PPy-Fe0 using transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). The rGO-PPy-Fe0 composites were investigated for the removal of uranium from aqueous solution and simulated seawater. The experimental results demonstrated that the rGO-PPy-Fe0 adsorbent possessed a superior capacity for the adsorption of uranium at mg g-1 and μg g-1 at the pH value of seawater. The adsorption process conformed to the pseudo-second-order rate equation and the Langmuir isotherm model. Based on X-ray photoelectron spectroscopy (XPS), we revealed the possible adsorption mechanism of uranium onto rGO-PPy-Fe0, which simulated a prospective potential of the adsorbent in seawater." @default.
- W2887415448 created "2018-08-22" @default.
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- W2887415448 date "2018-01-01" @default.
- W2887415448 modified "2023-10-06" @default.
- W2887415448 title "Polypyrrole modified Fe<sup>0</sup>-loaded graphene oxide for the enrichment of uranium(<scp>vi</scp>) from simulated seawater" @default.
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- W2887415448 doi "https://doi.org/10.1039/c8dt02819b" @default.
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