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Issue 3, 2010

Green-light photocatalytic reduction using dye-sensitized TiO2 and transition metal nanoparticles

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Abstract

Nitrobenzenes are cleanly reduced to anilines using Ru-sensitized TiO2 photocatalysts and green light irradiation, if very small amounts of transitions metal salts are added, which form metal nanoparticles of narrow size distribution under the experimental conditions. The catalyst system is prepared by simple mixing of the components and is therefore easy to apply in organic synthesis. As light sources, commercial high power LEDs or sunlight are used. We report the optimization of the reaction conditions, the effect of trace amounts of added metal salts and demonstrate the use of green light photoreduction in the conversion of several nitrobenzene derivatives.

Graphical abstract: Green-light photocatalytic reduction using dye-sensitized TiO2 and transition metal nanoparticles

Article information


Submitted
03 Sep 2009
Accepted
06 Oct 2009
First published
19 Nov 2009

Green Chem., 2010,12, 400-406
Article type
Paper

Green-light photocatalytic reduction using dye-sensitized TiO2 and transition metal nanoparticles

S. Füldner, R. Mild, H. I. Siegmund, J. A. Schroeder, M. Gruber and B. König, Green Chem., 2010, 12, 400 DOI: 10.1039/B918140G

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