Bio-mimetic synthesis of catalytically active nano-silver using Bos taurus (A-2) urine

Bio-molecules present in liquid metabolic waste of an Indian cow are effectively used to reduce silver (Ag) ions into Ag nanoparticles (Ag NPs) in one step. This bio-inspired electron transfer to Ag ion for the formation of base Ag metal is fairly prompt and facile. These nanoparticles act as a positive catalyst for various organic transformation reactions. The X-RD pattern of the synthesized product confirmed the formation of Ag nanoparticles. The bio-mimetic Ag NPs show potential activity for degradation of dyes under study. Herein, we have successfully carried out several reduction reactions of nitro groups using Ag nanoparticles as a heterogeneous nanocatalyst.