Figure 2.

a UV–Vis–NIR spectra of the silver nanoparticles prepared with different amounts of NaBH4: a 800 μL (pH 9.28), b 900 μL (pH 9.34), c 1,000 μL (pH 9.36), d 1,100 μL (pH 9.45), e 1,200 μL (pH 9.46), and f 1,300 μL (pH 9.48). The inset shows photographs from left to right corresponding to concentration of NaBH4 low to high. b The histogram of the bisector length for the silver nanoprisms prepared by NaBH4 1,100 μL, the bisector length is 113.4 ± 40.8 nm.

Yu et al. Nanoscale Res Lett 2011 6:46   doi:10.1007/s11671-010-9808-6