Preparation and Characterization of Wool-Pd(0)Catalyst and Its Catalytic Performance for Oxidation of Alcohol in Water

Wool-Pd(0)catalyst was prepared successfully using nature biopolymer wool as stabilizer and supporter.The structure of the palladium catalyst was characterized by field emission scanning electron microscopy and X-ray photoelectron spectroscopy,and the results showed that Pd(0)particles are well dispersed on the surface of wool.Applying wool-Pd(0)catalyst in the oxidation of alcohol under optimized conditions,several parameters such as catalyst amount,base,reaction temperature,and reaction time were screened.It was found that 35 mg wool-Pd(0)catalyst is available for the oxidation of 0.2mmol alcohol to corresponding aldehyde or ketone with higher conversion and selectivity in the presence of0.2mmol K2CO3 and using water as reaction medium.The heterogeneous catalyst is of good reusability in this reaction system.