Comparative study of oxidation of benzyl alcohol: Influence of Cu-doped metal cation on nano ZnO catalytic activity

• In this paper, two transition metal oxide nanoparticles are synthesized and characterized by XRD, UVD FT-IR and SEM.
• Actually, we were studied influence of Cu metal doped on ZnO catalytic activity.
• The catalytic performance of ZnO is significantly enhanced by doped Cu metal on nano ZnO.
• Benzylic alcohols converted to corresponding aldehyde or ketone by nano CuZnO with H2O2 under room temperature and solvent free for 3 h.

Nano-mushroom ZnO and Cu-doped ZnO were prepared by co-precipitation method and characterized by general techniques. The particle size of ZnO is 28 nm, while it decreased to 17 nm by doping Cu2+ ion on it.Then, catalytic properties of these nanoparticles were studied in oxidation of benzylic alcohols by 30% H2O2 with nano-catalyst at room temperature. The results showed, a solvent free, green, selective, high yield and effective oxidation. Also, the catalytic performance such as: % conversion, % selectivity and rate of reaction of ZnO are significantly enhanced by doped 1% Cu metal cation on nano ZnO. The ketone and aldehyde are the main product of secondary and primary benzylic alcohols respectively under this condition.

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