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. 2016 Sep 21;4(1):1600152. doi: 10.1002/advs.201600152

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© 2016 The Authors. Published by WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim

This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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TEM images of TiO₂ nanotube (a) and CdS/TiO₂ nanotube (b), respectively. Activities of H₂ evolution for TiO₂ nanotube and CdS/nanotube under visible light irradiation for 6 h (c). SEM (d) and TEM (e) image of Ag/TiO₂ NTAs, respectively. Schematic diagram showing the energy band structure and electron‐hole pairs separation in Ag/TiO₂ NTAs under visible light irradiation (f). (a–c) Reproduced with permission.251 Copyright 2008, Elsevier. (d–f) Reproduced with permission.256 Copyright 2016, Royal Society of Chemistry.