TiO2 nanotubes: N-ion implantation at low-dose provides noble-metal-free photocatalytic H2-evolution activity

Abstract

Low-dose nitrogen implantation induces in TiO2 nanotubes a co-catalytic activity for photocatalytic H2-evolution. The use of an ion implantation process leads to a N-implanted zone only at the top part of the tubes. The coupling of this top layer and the underlying non-implanted part of the nanotubes strongly contributes to an efficient carrier separation and thus to a significantly enhanced H2 generation.

References in corpus (3)

• One-dimensional Titanium Dioxide Nanomaterials: Nanotubes
• Hydrogenated anatase: Strong photocatalytic H2 evolution without the use of a co-catalyst
• Ar+-ion Bombardment of TiO2 Nanotubes Creates Co-catalytic Effect for Photocatalytic Open Circuit Hydrogen Evolution

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• Magneli-Phases in Anatase Strongly Promote Co-Catalyst-Free Photocatalytic Hydrogen Evolution
• Double-Side Cocatalytic Activation of Anodic TiO${}_2$ Nanotube Membranes with Sputter-Coated Pt for Photocatalytic H${}_2$ Generation from Water-Ethanol Mixtures
• Optical properties of silicon-implanted polycrystalline diamond membranes