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Journal of Materials Science
Erschienen in: Journal of Materials Science 3/2018

22.09.2017 | Chemical routes to materials

The preparation of Cu2O@Au yolk/shell structures for efficient photocatalytic activity with a self-generated acid etching method

verfasst von: Rui Chen, Juan Lu, Shengnan Liu, Min Zheng, Zuoshan Wang

Erschienen in: Journal of Materials Science | Ausgabe 3/2018

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Abstract

Cu2O@Au yolk/shell structures were successfully prepared with a facile self-generated acid etching method at room temperature. The morphology is controllable by adding different amount of HAuCl4·4H2O. Scanning electron microscopy and transmission electron microscopy images showed that Au nanoparticles self-assembled into a porous shell around Cu2O core while the produced etching agent etched the core gradually and formed the cavity. The photocatalytic property of Cu2O@Au yolk/shell structures was studied by degrading MO under the irradiation of visible light at room temperature. Benefiting from the synergistic effect of cavity micro-reactor and electron transfer, the photocatalytic performance of the as-prepared Cu2O@Au yolk/shell structures was much better than that of pure Cu2O. The possible photocatalytic mechanism of the Cu2O@Au yolk/shell catalysts was proposed and elaborated in this study. It is certified that Yolk/shell structures have potential applications in photocatalysis for its active sites on the large specific area.
Vorheriger Artikel Study of superhydrophobic surface in self-cleaning of magnetorheological fluid
Nächster Artikel Synthesis, nonlinear optical properties and cellular imaging of hybrid ZnS nanoparticles capped with conjugated terpyridine derivatives

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Metadaten
Titel
The preparation of Cu2O@Au yolk/shell structures for efficient photocatalytic activity with a self-generated acid etching method
verfasst von
Rui Chen
Juan Lu
Shengnan Liu
Min Zheng
Zuoshan Wang
Publikationsdatum
22.09.2017
Verlag
Springer US
Erschienen in
Journal of Materials Science / Ausgabe 3/2018
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-017-1614-4

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