期刊
APPLIED CATALYSIS B-ENVIRONMENTAL
卷 202, 期 -, 页码 381-387出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apcatb.2016.09.042
关键词
Titanium dioxide; Photocatalysis; Carbon; Nitrogen oxide; Nitrogen
资金
- Flemish government (Methusalem)
- agency for Innovation by Science and Technology in Flanders (IWT)
- ERC (ERC Starting Grant) [307523]
Photocatalysis assisted oxidation of carbon black was performed using TiO2 photocatalyst under UV illumination in an atmosphere with NO, O-2 and water vapor at 150 degrees C. Carbon is oxidized mainly to CO2 while NO is selectively converted to N-2. Enhanced O-2 and NO concentrations have a positive effect on the carbon oxidation rate. At a concentration of 3000 ppm NO and 13.3% O-2 in the gas phase the carbon oxidation rate reaches 2.3 mu g(carbon)/mg(TiO2) h, at a formal electron/photon quantum efficiency of 0.019. HR SEM images reveal uniform gradual reduction of the carbon particle size irrespective of the distance to TiO2 photocatalyst particles in the presence of NO, O-2 and H2O. (C) 2016 Elsevier B.V. All rights reserved.
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