Abstract
Copper nanoparticle arrays were synthesized by the aqueous phase chemical reduction of Cu2+ to Cu0 using glucose as an environmentally benign reducing agent. The UV absorption spectrum exhibited an absorption band at 554 nm revealing the presence of metallic copper nanoparticles. The catalytic properties of the synthesized copper nanoparticle arrays were investigated by reducing 4-nitrophenol (Nip) into 4-aminophenol (Amp) in the presence of NaBH4. In comparison to the commercial copper metal powder, copper nanoparticle arrays exhibited highly improved catalytic performance on the reduction of nitrophenol. The current synthesis approach of pure copper nanoparticle arrays does not require rigorous conditions or toxic agents, and hence it is a rapid, efficient, and green approach for the development of active metallic catalysts.
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