Jump to main content
Jump to site search


Ring hydrogenation of aromatic compounds in aqueous suspensions of an Rh-loaded TiO2 photocatalyst without use of H2 gas

Abstract

There are various possibilities of co-catalyst-assisted photocatalytic reduction (CPR) over a titanium(IV) oxide (TiO2) photocatalyst, especially H2-free and chemoselective CPR. We examined photoinduced ring hydrogenation of aromatics having a carboxyl group over metal-loaded TiO2 under an H2-free condition and found that the aromatics were almost quantitatively hydrogenated to corresponding cyclohexanes having a carboxyl group when rhodium, water and oxalic acid were used as a metal co-catalyst, solvent and hole scavenger, respectively. The effects of different metal co-catalysts, solvents and hole scavengers on the ring hydrogenation were also examined. Based on the results obtained under various conditions, light dependency and adsorption behavior of the aromatics and hole scavengers, the functions of TiO2 and the co-catalyst, and the reaction process are discussed.

Back to tab navigation

Supplementary files

Publication details

The article was received on 20 Sep 2017, accepted on 13 Nov 2017 and first published on 13 Nov 2017


Article type: Paper
DOI: 10.1039/C7CY01929G
Citation: Catal. Sci. Technol., 2017, Accepted Manuscript
  •   Request permissions

    Ring hydrogenation of aromatic compounds in aqueous suspensions of an Rh-loaded TiO2 photocatalyst without use of H2 gas

    K. Nakanishi, R. Yagi, K. Imamura, A. Tanaka, K. Hashimoto and H. Kominami, Catal. Sci. Technol., 2017, Accepted Manuscript , DOI: 10.1039/C7CY01929G

Search articles by author

Spotlight

Advertisements