Related Experiment Video
Updated: Jun 21, 2026

Light-driven Enzymatic Decarboxylation
Published on: May 22, 2016
Visible-light photocatalysis in nitrogen-doped titanium oxides
R Asahi1, T Morikawa, T Ohwaki
1Toyota Central R&D Laboratories, Nagakute, Aichi 480-1192, Japan. rasahi@mosk.tytlabs.co.jp
Abstract:
To use solar irradiation or interior lighting efficiently, we sought a photocatalyst with high reactivity under visible light. Films and powders of TiO(2-x)N(x) have revealed an improvement over titanium dioxide (TiO2) under visible light (wavelength < 500 nanometers) in optical absorption and photocatalytic activity such as photodegradations of methylene blue and gaseous acetaldehyde and hydrophilicity of the film surface. Nitrogen doped into substitutional sites of TiO2 has proven to be indispensable for band-gap narrowing and photocatalytic activity, as assessed by first-principles calculations and x-ray photoemission spectroscopy.
More Related Videos
Related Concept Videos
Oxidation-Reduction Reactions
Catalysis
Oxidative Cleavage of Alkenes: Ozonolysis
Ozone is a symmetrical bent molecule stabilized by a resonance structure.
Catalysis
Anoxygenic Photosynthesis
Oxygenic Photosynthesis

