Synergistic photocatalytic aerobic oxidation of sulfides and amines on TiO2 under visible-light irradiation† †Electronic supplementary information (ESI) available. See DOI: 10.1039/c4sc02891k Click here for additional data file.

نویسندگان

  • Xianjun Lang
  • Wan Ru Leow
  • Jincai Zhao
  • Xiaodong Chen
چکیده

Selective photocatalytic aerobic oxidation, which can be conducted under ambient conditions, is of great importance towards achieving sustainable chemistry. However, its practical applications are undermined by several challenges, such as low selectivity, sluggish reaction rates, and the requirement of UV light irradiation. Herein, we report a new concept of synergistic photocatalytic oxidation, for which two seemingly irrelevant reactions can be achieved in one photocatalytic system through the synergistic interplay of reactants and catalyst. As proof of concept, two challenging reactions, the aerobic oxidation of sulfide and the aerobic oxidative formylation of amine with methanol, were employed to demonstrate such synergistic photocatalytic aerobic oxidation under visible-light irradiation. This work could pave the way for highly selective photoredox catalysis via rational design based on mechanistic insight.

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منابع مشابه

Carbon nitride–TiO2 hybrid modified with hydrogenase for visible light driven hydrogen production† †Electronic supplementary information (ESI) available. See DOI: 10.1039/c5sc02017d Click here for additional data file.

A system consisting of a [NiFeSe]–hydrogenase (H2ase) grafted on the surface of a TiO2 nanoparticle modified with polyheptazine carbon nitride polymer, melon (CNx) is reported. This semi-biological assembly shows a turnover number (TON) of more than 5.8 10 mol H2 (mol H2ase) 1 after 72 h in a sacrificial electron donor solution at pH 6 during solar AM 1.5 G irradiation. An external quantum effi...

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عنوان ژورنال:

دوره 6  شماره 

صفحات  -

تاریخ انتشار 2015