Highly efficient visible-light photocatalytic ethane oxidation into ethyl hydroperoxide as a radical reservoir†

Photocatalytic ethane conversion into value-added chemicals is a great challenge especially under visible light irradiation. The production of ethyl hydroperoxide (CH3CH2OOH), which is a promising radical reservoir for regulating the oxidative stress in cells, is even more challenging due to its facile decomposition. Here, we demonstrated a design of a highly efficient visible-light-responsive photocatalyst, Au/WO3, for ethane oxidation into CH3CH2OOH, achieving an impressive yield of 1887 mu mol g(cat)(-1) in two hours under visible light irradiation at room temperature for the first time. Furthermore, thermal energy was introduced into the photocatalytic system to increase the driving force for ethane oxidation, enhancing CH3CH2OOH production by six times to 11 233 mu mol g(cat)(-1) at 100 degrees C and achieving a significant apparent quantum efficiency of 17.9% at 450 nm. In addition, trapping active species and isotope-labeling reactants revealed the reaction pathway. These findings pave the way for scalable ethane conversion into CH3CH2OOH as a potential anticancer drug.

Automated summary

The study focuses on photocatalytic ethane conversion into CH3CH2OOH using a highly efficient visible-light-responsive photocatalyst, Au/WO3. The introduction of thermal energy significantly increased the production yield, and the reaction pathway was revealed through trapping active species and isotope-labeling reactants.