Sustainable Gas Phase Selective Photocatalytic Oxidation of Cyclohexane on MoO<sub>x</sub>/TiO<sub>2</sub>/SiO<sub>2</sub> catalysts

Gas phase selective photocatalytic oxidation of cyclohexane was studied in a two dimensional fluidized bed reactor on MoOx catalysts supported on grafted TiO2/SiO2. The influence of sulphate and Mo loading was evaluated. Photocatalytic tests showed that benzene was the main reaction product formed d...

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Main Authors: V. Vaiano, D. Sannino, P. Ciambelli
Format: Article
Language:English
Published: AIDIC Servizi S.r.l. 2014-08-01
Series:Chemical Engineering Transactions
Online Access:https://www.cetjournal.it/index.php/cet/article/view/5396
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author V. Vaiano
D. Sannino
P. Ciambelli
author_facet V. Vaiano
D. Sannino
P. Ciambelli
author_sort V. Vaiano
collection DOAJ
description Gas phase selective photocatalytic oxidation of cyclohexane was studied in a two dimensional fluidized bed reactor on MoOx catalysts supported on grafted TiO2/SiO2. The influence of sulphate and Mo loading was evaluated. Photocatalytic tests showed that benzene was the main reaction product formed during irradiation with together CO2 and cyclohexene as by products. Depending on the TiO2, Mo and sulphate loading, an enhancement of the activity and catalysts stability occurred during irradiation. MoOx/TiO2/SiO2 samples showed a higher photocatalytic activity with respect to MoOx/TiO2-Al2O3. This behaviour was attributed to the better transmission of UV light through SiO2 than through Al2O3 and the lower absorption of the radiation.
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spelling doaj.art-f36cae3b207642709b74e8bb0520069c2022-12-21T19:57:05ZengAIDIC Servizi S.r.l.Chemical Engineering Transactions2283-92162014-08-013910.3303/CET1439095Sustainable Gas Phase Selective Photocatalytic Oxidation of Cyclohexane on MoO<sub>x</sub>/TiO<sub>2</sub>/SiO<sub>2</sub> catalystsV. VaianoD. SanninoP. CiambelliGas phase selective photocatalytic oxidation of cyclohexane was studied in a two dimensional fluidized bed reactor on MoOx catalysts supported on grafted TiO2/SiO2. The influence of sulphate and Mo loading was evaluated. Photocatalytic tests showed that benzene was the main reaction product formed during irradiation with together CO2 and cyclohexene as by products. Depending on the TiO2, Mo and sulphate loading, an enhancement of the activity and catalysts stability occurred during irradiation. MoOx/TiO2/SiO2 samples showed a higher photocatalytic activity with respect to MoOx/TiO2-Al2O3. This behaviour was attributed to the better transmission of UV light through SiO2 than through Al2O3 and the lower absorption of the radiation.https://www.cetjournal.it/index.php/cet/article/view/5396
spellingShingle V. Vaiano
D. Sannino
P. Ciambelli
Sustainable Gas Phase Selective Photocatalytic Oxidation of Cyclohexane on MoO<sub>x</sub>/TiO<sub>2</sub>/SiO<sub>2</sub> catalysts
Chemical Engineering Transactions
title Sustainable Gas Phase Selective Photocatalytic Oxidation of Cyclohexane on MoO<sub>x</sub>/TiO<sub>2</sub>/SiO<sub>2</sub> catalysts
title_full Sustainable Gas Phase Selective Photocatalytic Oxidation of Cyclohexane on MoO<sub>x</sub>/TiO<sub>2</sub>/SiO<sub>2</sub> catalysts
title_fullStr Sustainable Gas Phase Selective Photocatalytic Oxidation of Cyclohexane on MoO<sub>x</sub>/TiO<sub>2</sub>/SiO<sub>2</sub> catalysts
title_full_unstemmed Sustainable Gas Phase Selective Photocatalytic Oxidation of Cyclohexane on MoO<sub>x</sub>/TiO<sub>2</sub>/SiO<sub>2</sub> catalysts
title_short Sustainable Gas Phase Selective Photocatalytic Oxidation of Cyclohexane on MoO<sub>x</sub>/TiO<sub>2</sub>/SiO<sub>2</sub> catalysts
title_sort sustainable gas phase selective photocatalytic oxidation of cyclohexane on moo sub x sub tio sub 2 sub sio sub 2 sub catalysts
url https://www.cetjournal.it/index.php/cet/article/view/5396
work_keys_str_mv AT vvaiano sustainablegasphaseselectivephotocatalyticoxidationofcyclohexaneonmoosubxsubtiosub2subsiosub2subcatalysts
AT dsannino sustainablegasphaseselectivephotocatalyticoxidationofcyclohexaneonmoosubxsubtiosub2subsiosub2subcatalysts
AT pciambelli sustainablegasphaseselectivephotocatalyticoxidationofcyclohexaneonmoosubxsubtiosub2subsiosub2subcatalysts