Table 2 The maximum λmax, valley λmax, maximum peak height of 780 cm- 1 band and the corresponding reaction time needed them to reach for the three reaction systems.
AgNO3/BuNH2(mM/mM) | Maximum λmax | Valley λmax | Maximum SERS | |||
|---|---|---|---|---|---|---|
Value (nm) | Time (h) | Value (nm) | Time (h) | Peak height | Time (h) | |
1/0.5 | 494 | 5 | 464 | 25 | 4539 | 25 |
5/2.5 | 464 | 3.5 | 422 | 18 | 10831 | 18 |
10/5 | 468 | 3 | 427 | 9 | 10240 | 6 |