Improved Production of Phenol from Benzene by Photocatalytic Reaction Using TiO2 Powder Treated with HF and a Reaction System Having a Benzene/Water Interface

Benzene is oxidized to phenol by TiO2-photocatalytic reaction in liquid benzene. However, this reaction decelerates as the reaction is continued because the TiO2 surface is gradually covered with the polymerized products of phenol. Two methods were found to be useful to suppress the polymerization a...

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Bibliographic Details
Published in:Chemistry letters 2020-11, Vol.49 (11), p.1298-1301
Main Authors: Higashida, Suguru, Okamoto, Kyohei, Hirota, Eri, Taniguchi, Ryota, Yagi, En
Format: Article
Language:English
Subjects:
Benzene
Deceleration
Hydrocarbons
Phenols
Photocatalysis
Polymerization
Titanium dioxide
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Summary:Benzene is oxidized to phenol by TiO2-photocatalytic reaction in liquid benzene. However, this reaction decelerates as the reaction is continued because the TiO2 surface is gradually covered with the polymerized products of phenol. Two methods were found to be useful to suppress the polymerization and improve the production of phenol. They were extraction of phenol produced in benzene into alkaline water and use of HF-treated TiO2 powder as the photocatalyst. By combination of these methods, the amount of phenol produced was almost doubled.
ISSN:0366-7022
1348-0715
DOI:10.1246/cl.200458