Table 3. Adsorption Energy (Eads) of Thymol, H2O, Ethanol, and Coadsorbed Thymol and Ethanol on the HC and SiO2 Surfaces.
adsorption
energy (eV) |
|||||
---|---|---|---|---|---|
models | HC | COOH-HC | O-HC | OH-HC | SiO2 |
thymol adsorption | –0.75 | –0.49 | –0.45 | –0.40 | –0.87 |
H2O adsorption | –0.14 | –0.55 | –0.21 | –0.32 | –0.67 |
ethanol adsorption | –0.24 | –0.61 | –0.24 | –0.23 | –0.88 |
thymol and ethanol coadsorption | –1.22 | –1.00 | –1.04 | –1.24 | –1.61 |