Adsorption of Eu(III) on oMWCNTs: Effects of pH, Ionic Strength, Solid-Liquid Ratio and Water-Soluble Fullerene

Table 2

The thermodynamic constants used for species estimates [24, 25].

Reaction	log𝐾
H2O↔OH^−+H^+	−13.8
Eu^3++H2O↔[Eu(OH)]^2++H^+	−7.64
Eu^3++2H2O↔Eu(OH)2^++2H^+	−15.1
Eu^3++3H2O↔Eu(OH)3^0+3H^+	−23.7
Eu^3++4H2O↔Eu(OH)4^−+4H^+	−36.2
H2CO3↔CO3^2−+2H^+	−17.43
Eu^3++CO3^2−↔EuCO3^+	8.1
Eu^3++2CO3^2−↔EuCO32^−	12.1
Eu^3++Cl^−↔EuCl^2+	1.10
Eu^3++2Cl^−↔EuCl2^+	1.50