Fig. 1From: Ag Nanoparticles Located on Three-Dimensional Pine Tree-Like Hierarchical TiO2 Nanotube Array Films as High-Efficiency Plasmonic Photocatalysts a, b Schematic illustration of the formation of Ag-decorated three-dimensional pine tree-like hierarchical TiO2 nanotube arrays. c Schematic illustration of the photogenerated electron transfer process in Ag/TiO2 comoposite under UV and visible light irradiationBack to article page