Table 4 Surface energy of different atomic layer thicknesses.

From: Study on adsorption of kaolinite and gold thiosulfate

Atomic-layer thickness (Å)

5.292

12.372

19.452

26.532

33.612

40.692

Surface energy (J·m–2)

0.164

0.221

0.210

0.192

0.174

0.159