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Preparation of Fe-MOFs by microwave-assisted ball milling for reducing Cr(VI) in wastewater

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Abstract

Fe-Based metal–organic frameworks (Fe-MOFs) were prepared with trimesic acid and FeSO4·7H2O via a microwave-assisted ball milling approach. The structure and thermal stability of the as-prepared Fe-MOFs were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectrometry (FTIR), X-ray photoelectron spectroscopy (XPS), and thermogravimetric analysis (TGA). When used to degrade 20 mg L−1 hexavalent chromium in aqueous solution, the Fe-MOFs were found to completely reduce a 100 mL solution within 120 min under natural light and a 400 mL solution within 90 min under Xe lamp irradiation. Under natural sunlight, 98% of the Cr(VI) was removed from a 40 mL solution after 40 min.

Graphical abstract: Preparation of Fe-MOFs by microwave-assisted ball milling for reducing Cr(vi) in wastewater

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Publication details

The article was received on 08 Oct 2017, accepted on 13 Nov 2017 and first published on 14 Nov 2017


Article type: Paper
DOI: 10.1039/C7DT03776G
Citation: Dalton Trans., 2017, Advance Article
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    Preparation of Fe-MOFs by microwave-assisted ball milling for reducing Cr(VI) in wastewater

    F. Wei, D. Chen, Z. Liang, S. Zhao and Y. Luo, Dalton Trans., 2017, Advance Article , DOI: 10.1039/C7DT03776G

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