2.2. Synthesis of SBA-15
SBA-15 was prepared according to the procedure in the literature
[21]: 4 g of pluronic P123 triblock copolymer surfactant (EO20PO70EO20)
was dissolved in water/HCl 2 M solution. Subsequently, tetraethylorthosilicate
was added. The resulting mixture was stirred for 8 h at
40 °C and then aged for 15 h at 100 °C. The mole fraction of each
componentwas 1 TEOS:0.0168 P123:5.854 HCl:162.681 H2O. Thewhite
product was filtered, washed, and dried. Calcination was performed in
oven at 550 °C for 6 h in air atmosphere to remove the triblock
copolymer organic component.