A comparison between photocatalytic and catalytic oxidation of 2-Propanol over Au/TiO2–CeO2 catalysts

A comparison between photocatalytic and catalytic oxidation of 2-Propanol over Au/TiO2–CeO2... Article history: Photocatalytic and catalytic oxidation of 2-propanol, representative of volatile organic compounds Received 8 January 2016 (VOC’s), were compared over mixed TiO –CeO -based catalysts. The effect of different amounts of CeO 2 2 2 Received in revised form 20 January 2016 and the presence of gold (1 wt%) on TiO was investigated. In the photocatalytic oxidation CeO had a 2 2 Accepted 21 January 2016 negative effect on the performance towards the alcohol conversion of both TiO –CeO and Au/TiO –CeO 2 2 2 2 Available online 29 January 2016 catalysts, being Au/TiO the most active system. On the contrary mixed TiO –CeO and Au/TiO –CeO 2 2 2 2 2 samples showed a higher catalytic oxidation efficiency for 2-propanol conversion compared to the single Keywords: oxides. In this case Au/CeO catalyst had the best performance. On the basis of characterization data (XRD, Selective oxidation Raman spectroscopy, EDX, BET Surface area determinations, H -TPR, DRIFT and DRS), it was proposed Catalytic combustion that the interaction of gold with TiO caused an enhancement of the partial photo-oxidation activity to Photocatalysis acetone due to an increase of the charge separation between the excited electron and the hole of TiO http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Molecular Catalysis A: Chemical Elsevier

A comparison between photocatalytic and catalytic oxidation of 2-Propanol over Au/TiO2–CeO2 catalysts

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Publisher
Elsevier
Copyright
Copyright © 2016 Elsevier B.V.
ISSN
1381-1169
eISSN
1873-314X
D.O.I.
10.1016/j.molcata.2016.01.025
Publisher site
See Article on Publisher Site

Abstract

Article history: Photocatalytic and catalytic oxidation of 2-propanol, representative of volatile organic compounds Received 8 January 2016 (VOC’s), were compared over mixed TiO –CeO -based catalysts. The effect of different amounts of CeO 2 2 2 Received in revised form 20 January 2016 and the presence of gold (1 wt%) on TiO was investigated. In the photocatalytic oxidation CeO had a 2 2 Accepted 21 January 2016 negative effect on the performance towards the alcohol conversion of both TiO –CeO and Au/TiO –CeO 2 2 2 2 Available online 29 January 2016 catalysts, being Au/TiO the most active system. On the contrary mixed TiO –CeO and Au/TiO –CeO 2 2 2 2 2 samples showed a higher catalytic oxidation efficiency for 2-propanol conversion compared to the single Keywords: oxides. In this case Au/CeO catalyst had the best performance. On the basis of characterization data (XRD, Selective oxidation Raman spectroscopy, EDX, BET Surface area determinations, H -TPR, DRIFT and DRS), it was proposed Catalytic combustion that the interaction of gold with TiO caused an enhancement of the partial photo-oxidation activity to Photocatalysis acetone due to an increase of the charge separation between the excited electron and the hole of TiO

Journal

Journal of Molecular Catalysis A: ChemicalElsevier

Published: May 1, 2016

References

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    Mineshiege, A.; Taji, T.; Muroi, Y.; Kobune, M.; Fujii, S.; Nishi, N.; Inaba, M.; Ogumi, Z.
  • Chem. Eng. J.
    Ameen, S.; Akhtar, M.S.; Seo, H.K.; Shin, H.S.
  • Appl. Catal. B: Environ.
    Bacsa, R.R.; Kiwi, J.
  • J. Catal.
    Tibiletti, D.; Bart de Graaf, E.A.; Teh, S.P.; Rothenberg, G.; Farrusseng, D.; Mirodatos, C.

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