Cr(VI) Removal from Aqueous by Adsorption on Amine-Functionalized Mesoporous Silica Prepared from Silica Fume

Table 4

Thermodynamic parameter for adsorption of Cr(VI) at different temperatures on NH₂-MCM-41.

	Δ (kJ/mol)	Δ (kJ/mol)	Δ J/(mol·K)
298		2.024	39.876
308
318