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. 2017 Dec 22;4:37. doi: 10.1186/s40580-017-0132-z

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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. 8 — a Structures of Ru–C, Ru-Cat, poly-1, and poly-2. b Cyclic voltammograms of the indicated species in solution (left) and of the LbL films on an ITO electrode (right). c Photocurrent activity of FTO//nanoTiO₂//(PAA/poly-2)₁₀ with increasing concentrations of phenol in solution (left) and of FTO//(SnO₂/TiO₂)//(PAA/poly-2)₅ (red), FTO//(SnO₂/TiO₂)//(PAA/poly-1)₅ (blue, dashed), and FTO//(SnO₂/TiO₂) (black, dotted) in 0.1 M phosphate buffer at pH 7

(Reproduced with permission from Ref. [27]. Copyright 2017 American Chemical Society)