Aminopropyl Functionalised MCM-41: Synthesis and Application for Adsorption of Pb(II) and Cd(II)

Table 2

Porous properties of MCM-41 and aminopropyl-MCM-41.

Samples	d(100) (Å)	a0 (Å)	dpore (Å)	tw (Å)	SBET (m^2·g^−1)	Vpore (cm^3·g^−1)
Calcined MCM-41	39.3	45.4	27.0	18.4	564	1.53
Extracted MCM-41	42.5	49.1	27.9	21.2	538	1.76
Direct-NH2-MCM-41	42.1	48.6	27.0	21.6	427	0.77
Post-NH2-calcined MCM-41	—	—	—	—	97	1.54
Post-NH2-extracted MCM-41	—	—	—	—	137	1.01

; ; — N/A.