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Issue 23, 2018
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Two-dimensional porous cuprous oxide nanoplatelets derived from metal–organic frameworks (MOFs) for efficient photocatalytic dye degradation under visible light

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Abstract

Bottom-up synthesis is a promising method to design and control the morphology of metal–organic frameworks (MOFs). Here, square shaped two-dimensional (2D) MOF nanoplatelets with a thickness of ∼80 nm and a lateral dimension of 4–6 μm were successfully synthesized through a facile solvothermal treatment of Cu(NO3)2 and 4,4′-bipyridine in the presence of polyvinyl pyrrolidone (PVP). The growth of a cross-weaved structure assembled via 1D chains linked with 4,4′-bipyridine along the layer stacking direction was hindered by PVP, resulting in a high-aspect ratio of the nanoplatelets. Subsequent annealing treatment converted the Cu-based MOFs into porous N-doped Cu2O/carbon composites, retaining the 2D square morphology. This annealed product showed a higher performance in the degradation of methyl orange under visible light compared to previously reported Cu2O composites. By using a small amount of the catalyst, the degradation rate could reach up to 2.5 mg min−1 gcat−1 as a result of the efficient absorption of visible light and high surface area of the porous catalysts.

Graphical abstract: Two-dimensional porous cuprous oxide nanoplatelets derived from metal–organic frameworks (MOFs) for efficient photocatalytic dye degradation under visible light

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Publication details

The article was received on 23 Mar 2018, accepted on 01 May 2018 and first published on 01 May 2018


Article type: Paper
DOI: 10.1039/C8DT01117F
Citation: Dalton Trans., 2018,47, 7694-7700
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    Two-dimensional porous cuprous oxide nanoplatelets derived from metal–organic frameworks (MOFs) for efficient photocatalytic dye degradation under visible light

    Y. Lin, H. Wan, F. Chen, X. Liu, R. Ma and T. Sasaki, Dalton Trans., 2018, 47, 7694
    DOI: 10.1039/C8DT01117F

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