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Issue 44, 2013
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Synthesis of core–shell heterostructured Cu/Cu2O nanowires monitored by in situ XRD as efficient visible-light photocatalysts

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Abstract

Core–shell heterostructured Cu/Cu2O nanowires with a high aspect ratio were synthesized from Cu foam using a novel oxidation/reduction process. In situ XRD was used as an efficient tool to acquire phase transformation details during the temperature-programmed oxidation of Cu foam and the subsequent reduction process. Based on knowledge of the crucial phase transformation, optimal synthesis conditions for producing high-quality CuO and core–shell Cu/Cu2O nanowires were determined. In favor of efficient charge separation induced by the special core–shell heterostructure and the advanced three-dimensional spatial configuration, Cu/Cu2O nanowires exhibited superior visible-light activity in the degradation of methylene blue. The present study illustrates a novel strategy for fabricating efficiently core–shell heterostructured nanowires and provides the potential for developing their applications in electronic devices, for environmental remediation and in solar energy utilization fields.

Graphical abstract: Synthesis of core–shell heterostructured Cu/Cu2O nanowires monitored by in situ XRD as efficient visible-light photocatalysts

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Supplementary files

Article information


Submitted
28 Aug 2013
Accepted
03 Sep 2013
First published
03 Sep 2013

J. Mater. Chem. A, 2013,1, 13862-13868
Article type
Paper

Synthesis of core–shell heterostructured Cu/Cu2O nanowires monitored by in situ XRD as efficient visible-light photocatalysts

W. Chen, Z. Fan and Z. Lai, J. Mater. Chem. A, 2013, 1, 13862 DOI: 10.1039/C3TA13413J

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