201057.fig.002a
(a)
201057.fig.002b
(b)
201057.fig.002c
(c)
201057.fig.002d
(d)
201057.fig.002e
(e)
201057.fig.002f
(f)
Figure 2: TEM micrographs and histogram of silver colloids with different concentrations of AgNPs (ppm) prepared at different concentrations of silver nitrate. (a), (b) 1000 ppm. (c), (d) 5000 ppm; (e), (f) 10000 ppm; Applied condition: 5 gm NS; pH 12; time 60 min; temp. 70°C; different amounts of AgNO3 (0.175, 0.785, and 1.57 g); total volume, 100 mL H2O.