Table 1 Levels of factor of orthogonal design
From: The situ preparation of silica nanoparticles on the surface of functionalized graphene nanoplatelets
Level | Factors | ||
|---|---|---|---|
TEOS (g) | NH3 · H2O (g) | Time (h) | |
1 | 0.3 | 0.6 | 4 |
2 | 0.6 | 1.2 | 6 |
3 | 0.9 | 1.8 | 8 |
From: The situ preparation of silica nanoparticles on the surface of functionalized graphene nanoplatelets
Level | Factors | ||
|---|---|---|---|
TEOS (g) | NH3 · H2O (g) | Time (h) | |
1 | 0.3 | 0.6 | 4 |
2 | 0.6 | 1.2 | 6 |
3 | 0.9 | 1.8 | 8 |