Issue 8, 2014

Fabrication of Fe/Fe3C@porous carbon sheets from biomass and their application for simultaneous reduction and adsorption of uranium(vi) from solution

Abstract

Carbon-encapsulated Fe/Fe3C nanoparticles embedded in porous carbon sheets (Fe/Fe3C@PCS) were fabricated by a one step carbothermic reduction, using natural abundant biomass derivatives. Batch experimental results showed that Fe/Fe3C@PCS could effectively remove the radionuclide U(VI) from simulated wastewater in the presence of carbonate or calcium under laboratory conditions with reduced cost, improved activity and enhanced kinetics. Compared with activated carbon (AC), Fe/Fe3C@PCS is more efficient, and can remove U(VI) quantitatively at an initial concentration of up to 140 mg Lāˆ’1. The major reaction pathway involved the reduction of U(VI) to the insoluble U(IV) species as identified by X-ray photoelectron spectroscopy (XPS) analysis. This study demonstrated the potential application of Fe/Fe3C@PCS as a low cost and effective remediation strategy for U-contaminated wastewater cleanup.

Graphical abstract: Fabrication of Fe/Fe3C@porous carbon sheets from biomass and their application for simultaneous reduction and adsorption of uranium(vi) from solution

Supplementary files

Article information

Article type
Research Article
Submitted
19 mai 2014
Accepted
24 juil. 2014
First published
25 juil. 2014

Inorg. Chem. Front., 2014,1, 641-648

Fabrication of Fe/Fe3C@porous carbon sheets from biomass and their application for simultaneous reduction and adsorption of uranium(VI) from solution

X. Wang, S. Zhang, J. Li, J. Xu and X. Wang, Inorg. Chem. Front., 2014, 1, 641 DOI: 10.1039/C4QI00071D

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