Evaluation of the Adsorption Efficiency of Glycine-, Iminodiacetic Acid -, and Amino Propyl-Functionalized Silica Nanoparticles for the Removal of Potentially Toxic Elements from Contaminated Water Solution

Table 2

Elemental analysis data obtained for the modified mesoporous silica.

Material	%C	%H	%N	Lo (mmol/g)^a
AP-MSNs	6.38	1.87	1.62	1.16
Epo-MSNs	8.41	2.14	—	—
Gly-MSNs	8.29	2.33	1.18	0.84
IDA-MSNs	9.46	2.51	1.37	0.98

^aFunctionalization degree (in millimoles of ligand per gram of functionalized silica).