Preparation of UiO-66-NH2 supported copper catalyst and its catalytic activity on alcohol oxidation
In this study,a composite of Cu-Cu2O/UiO-66-NH2 based on a metal-organic framework(MOF)was suc-cessfully prepared by solvothermal method,and it was comprehensively characterized by Fourier transform infrared spectroscopy(FTIR),X-ray diffraction(XRD),scanning electron microscope(SEM),transmission electron microsco-py(TEM),and X-ray photoelectron spectroscopy(XPS).The effects of solvent,temperature,and catalyst loading on the oxidation of benzyl alcohol to benzaldehyde were investigated using air as an oxidant.The composite catalyst showed excellent catalytic performance,and benzyl alcohol could be quantitatively converted to benzaldehyde at 60 ℃ for 5 h.Additionally,other alcohol substrates such as benzylic alcohols,allylic alcohols,and heteroaryl alco-hols,were selectively transformed into the corresponding aldehydes in excellent yields.Notably,the activity of the catalyst was almost unchanged after three cycles of recycling,demonstrating good stability and reusability.
Cu-Cu2O-based catalystUiO-66-NH2composite materialselective oxidation of alcohols
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