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Table 2 Orthogonal arrays for statistical experiment and results

From: The situ preparation of silica nanoparticles on the surface of functionalized graphene nanoplatelets

No. Experiment conditions Results
  Ethanol (ml) Temperature (°C) TEOS (g) NH3 · H2O (g) Time (h) Average particle size (nm)
1 100 30 0.3 (1) 0.6 (1) 4 (1) 50
2 100 30 0.3 (1) 1.2 (2) 6 (2) 120
3 100 30 0.3 (1) 1.8 (3) 8 (3) 140
4 100 30 0.6 (2) 0.6 (1) 6 (2) 100
5 100 30 0.6 (2) 1.2 (2) 8 (3) 240
6 100 30 0.6 (2) 1.8 (3) 4 (1) 170
7 100 30 0.9 (3) 0.6 (1) 8 (3) 130
8 100 30 0.9 (3) 1.2 (2) 4 (1) 160
9 100 30 0.9 (3) 1.8 (3) 6 (2) 280