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. 2017 Jun 8;9(4):47. doi: 10.1007/s40820-017-0148-2

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© The Author(s) 2017

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 3 — a Schematic 3D g-C₃N₄/Graphene structures. b, c SEM images of g-C₃N₄/graphene nanocomposites. Inset TEM image. d C 1s, e N 1s XPS and f UV–vis spectra of g-C₃N₄/graphene nanocomposites. Insets: photographs of the powder samples. Reprinted with permission from Ref. [66]. Copyright 2016 American Chemical Society