. Author manuscript; available in PMC: 2017 Feb 1.

Published in final edited form as: Environ Sci Nano. 2015 Nov 10;3(1):56–66. doi: 10.1039/C5EN00179J

Table 1.

Physical Characterization of Nanomaterials.

Sample	Diameter (nm)	Surface Area (m²/g)	Pore Volume (mL/g)	Pore Diameter (nm)	Functional Group Loading (mmol/g)	ζ Potential (mV) pH = 7.4, 10 mM Sodium Phosphate
Mesoporous Silica (MS)	49 (± 5) TEM	1100 (± 44)	0.56 (± 0.03)	3.100 (± 0.007)	4.283 (0.009)	−39 (± 2)
MS@APTES	-	700 (± 28)	0.152 (± 0.009)	3.100 (±0.007)	N/A	1.9 (± 0.2)
Nonporous Silica (NPS)	47 (± 7) TEM	66 (± 3)	N/A	N/A	0.582 (0.001)	−49 (± 3)
NPS@APTES	-	42 (± 2)	N/A	N/A	N/A	9.6 (± 0.7)
Min-U-Sil (α-Quartz)	270 (± 21) DLS	7.7 (± 0.3)	N/A	N/A	N/A	−67 (± 3)