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Nanomaterials 2018, 8(6), 444; https://doi.org/10.3390/nano8060444

In Situ Synthesis of Ag@Cu2O-rGO Architecture for Strong Light-Matter Interactions

1
College of Physics, Jilin Normal University, Siping 136000, China
2
Key Laboratory of Functional Materials Physics and Chemistry, Ministry of Education, Jilin Normal University, Changchun 130103, China
3
College of Chemistry, Jilin Normal University, Siping 136000, China
*
Authors to whom correspondence should be addressed.
Received: 10 May 2018 / Revised: 11 June 2018 / Accepted: 12 June 2018 / Published: 17 June 2018
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Abstract

Emerging opportunities based on two-dimensional (2D) layered structures can utilize a variety of complex geometric architectures. Herein, we report the synthesis and properties of a 2D+0D unique ternary platform-core-shell nanostructure, termed Ag@Cu2O-rGO, where the reduced graphene oxide (rGO) 2D acting as a platform is uniformly decorated by Ag@Cu2O core-shell nanoparticles. Cu2O nanoparticles occupy the defect positions on the surface of the rGO platform and restore the conjugation of the rGO structure, which contributes to the significant decrease of the ID/IG intensity ratio. The rGO platform can not only bridge the isolated nanoparticles together but also can quickly transfer the free electrons arising from the Ag core to the Cu2O shell to improve the utilization efficiency of photogenerated electrons, as is verified by high efficient photocatalytic activity of Methyl Orange (MO). The multi-interface coupling of the Ag@Cu2O-rGO platform-core-shell nanostructure leads to the decrease of the bandgap with an increase of the Cu2O shell thickness, which broadens the absorption range of the visible light spectrum. View Full-Text
Keywords: nanocomposite; rGO-substrate; Ag@Cu2O; interfacial effect nanocomposite; rGO-substrate; Ag@Cu2O; interfacial effect
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Guo, S.; Wang, Y.; Zhang, F.; Gao, R.; Liu, M.; Dong, L.; Liu, Y.; Zhang, Y.; Chen, L. In Situ Synthesis of Ag@Cu2O-rGO Architecture for Strong Light-Matter Interactions. Nanomaterials 2018, 8, 444.

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