JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
Print ISSN : 0021-9592
Chemical Reaction Engineering
Development of a Photocatalytic Microreactor with Separated Oxidation/Reduction Channels
Shinsuke NagamineHirohisa InoueMasahiro Ohshima
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2017 Volume 50 Issue 4 Pages 268-272

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Abstract

A novel photocatalytic microreactor is developed, which comprises two stacked channels divided by a TiO2/Ti bi-layered plate. Under ultraviolet (UV) light irradiation to the TiO2 channel (oxidation channel), the photo-induced holes cause oxidation in the irradiated channel, and residual electrons are transferred through a Ti plate to the other channel (reduction channel) and used for the reduction. The feasibility of this microreactor was studied by combining the oxidation of citric acid in the oxidation channel and the reducing Fe3+ ions in the reduction channel. Fe3+ was reduced to Fe2+ in the reduction channel. The conversion was drastically enhanced by increasing the pH of the citric acid solution in the oxidation channel.

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© 2017 The Society of Chemical Engineers, Japan
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