Title
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Photocatalysis assisted simultaneous carbon oxidation and reduction
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Author
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Abstract
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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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Language
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English
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Source (journal)
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Applied catalysis : B : environmental. - Amsterdam
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Publication
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Amsterdam
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2017
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ISSN
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0926-3373
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DOI
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10.1016/J.APCATB.2016.09.042
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Volume/pages
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202
(2017)
, p. 381-387
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ISI
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000388052100038
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Full text (Publisher's DOI)
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