Table 1.
Structural and Textural Properties of the Pristine SBA-15 Sample and the SBA-15 Incorporated with Ac2-26 (Sample SBA-Ac-26) Obtained from SAXS and NAI Techniques
| Technique | Assessed Physical Parameter in Each Technique | Samples | |
|---|---|---|---|
| SBA-15 | SBA-Ac2-26 | ||
| SAXS |  |
4.37(1) | 4.37(9) |
 |
2.56(3) | 2.53(2) | |
 |
7.2(2) | 7.8(9) | |
 |
0.000(1) | 0.006(1) | |
 |
11.33(1) | 11.33(1) | |
 |
0.044(6) | 0.041(4) | |
 |
7.2(7) | 20.8(2) | |
 |
6.7(6) | 8.1(5) | |
| NAI | BET surface area 
|
768 (1) | 342 (1) |
Decrease in surface area 
|
N/A | 55 | |
BJH Mesopore Volume 
|
1.74 (1) | 0.65 (1) | |
Filling/blocking Percentage 
|
N/A | 62 | |
Mean pore diameter(ads) 
|
9.4 (1) | 9.5 (1) | |
Mean pore diameter(des) 
|
7.5 (1) | 7.6 (1) | |
Wall thickness 
|
1.9 (1) | 1.8 (1) | |
Notes: All uncertainties in the last digit, when exist, are presented between parentheses. 
: core radius; 
: shell thickness; 
: standard deviation of the log-normal size distribution; 
: contrast electron density of the core relative to the shell; 
: lattice; 
: distortion of the lattice relative to an ideal 2D-hexagonal one; 
: scale factor of the Porod term; 
: radius of gyration related to the polymer-like scattering. 
: sigma. Å: angstrom, wave length of the electromagnetic radiation.
Abbreviations: Ads, adsorption; Des, desorption; N/A, Not applicable.