Table 5 Thermodynamic parameters of U(VI) adsorption on TW, GOTW and rGO/Fe3O4/TW.

From: Preparation of a magnetic reduced-graphene oxide/tea waste composite for high-efficiency sorption of uranium

Sorbents

ΔH0 (kJ/mol)

ΔS0 (J/(mol·k))

ΔG0 (kJ/mol)

303 K

313 K

323 K

333 K

TW

45.24

183.91

−10.48

−12.32

−14.16

−16.00

GOTW

26.71

123.16

−10.61

−11.83

−13.07

−14.30

rGO/Fe3O4/TW

21.31

106.83

−11.06

−12.13

−13.20

−14.26

Back to article page