Synthesis, Characterization, and Catalytic Activity of Pd(II) Salen-Functionalized Mesoporous Silica
Table 1
Surface area, total pore volume, pore size distribution, and amount of Pd loaded on the surface of the silica-based materials.
Entry
Materials
(m2 g−1)
Total pore (cm3g−1)
Mean pore (nm)
Pd ± (mg g−1)
1
SiO2
411.16
0.860
4.18
2
SiO2@ imineSA
340.58
0.503
2.95
3
SiO2@ imineSB
366.92
0.589
3.21
4
SiO2@ imineNA
273.49
0.430
3.14
5
SiO2@ imineNB
268.89
0.416
3.10
6
SiO2@ imineSA-Pd-II
358.63
0.505
2.82
30.74 ± 0.42
7
SiO2@ imineSA-Pd-I
302.64
0.429
2.83
33.6 ± 1.52
8
SiO2@ imineSB-Pd-II
365.38
0.539
2.95
29.58 ± 1.63
9
SiO2@ imineNA-Pd-II
322.64
0.416
2.58
25.85 ± 0.72
10
SiO2@ imineNB-Pd-II
305.41
0.407
2.65
25.12 ± 0.77
BET method used in N2 sorption. Single-point pore volume at . Adsorption average pore diameter by BET method. Determined by ICP-OES analysis. Average of triplicates ± SD. Not applicable.