Jump to main content
Jump to site search


Phenol-TiO2 Complex Photocatalysis: Visible Light-Driven Selective Oxidation of Amines into Imines with Air

Abstract

Strong interfacial charge-transfer (ICT) has been observed between phenol and TiO2. It was demonstrated that a single Ph-O-Ti linkage can induce ICT transitions in the visible light region. By utilizing the surface complexation of phenol with TiO2, we herein present a new photocatalytic protocol for the selective oxidation of amines into imines with air. Our success depends on merging phenol-TiO2 complex photocatalyst with TEMPO, so called cooperative photocatalysis, which improves the stability of the surface complexed phenol under the oxidative circumstance and prompts the selective conversion of amines. With 5 mol% of TEMPO as a co-catalyst and phenol-TiO2 complex (containing 0.8 mol% of phenol) as a photocatalyst, amines can be efficiently oxidized into imines with atmosphere O2 under blue LED irradiation. In addition, a mechanism is proposed to explain the visible-light photocatalytic performance of present system.

Back to tab navigation

Supplementary files

Publication details

The article was received on 30 Oct 2018, accepted on 07 Dec 2018 and first published on 07 Dec 2018


Article type: Paper
DOI: 10.1039/C8SE00527C
Citation: Sustainable Energy Fuels, 2019, Accepted Manuscript
  •   Request permissions

    Phenol-TiO2 Complex Photocatalysis: Visible Light-Driven Selective Oxidation of Amines into Imines with Air

    J. Shi, H. Hao and X. Lang, Sustainable Energy Fuels, 2019, Accepted Manuscript , DOI: 10.1039/C8SE00527C

Search articles by author

Spotlight

Advertisements