alexa Photoinduced reactivity of titanium dioxide.
Materials Science

Materials Science

Research & Reviews: Journal of Material Sciences

Author(s): O Carp, CL Huisman, A Reller

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The utilization of solar irradiation to supply energy or to initiate chemical reactions isalready an established idea. If a wide-band gap semiconductor like titanium dioxide (TiO 2 )is irradiated with light, excited electron–hole pairs result that can be applied in solar cells togenerate electricity or in chemical processes to create or degrade specific compounds.Recently, a new process used on the surface of TiO 2 films, namely, photoinduced super-hydrophilicity, is described. All three appearances of the photoreactivity of TiO 2 are dis-cussed in detail in this review, but the main focus is on the photocatalytic activity towardsenvironmentally hazardous compounds (organic, inorganic, and biological materials), whichare found in wastewater or in air. Besides information on the mechanistical aspects andapplications of these kinds of reactions, a description of the attempts and possibilities toimprove the reactivity is also provided. This paper would like to assist the reader in gettingan overview of this exciting, but also complicated, field.

This article was published in Prog Solid State Chem and referenced in Research & Reviews: Journal of Material Sciences

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