A family of highly ordered mesoporous silica materials designated as (HOM) has been synthesized by using high concentration of non-ionic surfactant of Brij 56 as a template. The monolithic silicate molecular sieves with regular arrays and extend periodicity have been produced in acidic condition and at different temperatures 25-45 °C range. The liquid crystal mesophase properties affect in the monolithic mesostructured morphology. The three dimensional (3D) accessible mesoporous silicates of cubic Im3m (HOM-1), cubic Ia3d (HOM-5), primitive-centered cubic Pn3m (HOM-7), and 3-d hexagonal P63/mmc (HOM-3) have been generated at 35, 70, 69, and 85 wt% of the mass ratio of Brij 56/TMOS, respectively. In addition, a stable well-defmed ordered two dimensional hexagonal p6mm space group (HOM-2), lamellar L∞ (HOM-6), and solid phase (S) with a cubic Ia3d space group (HOM-4) have been prepared with mass ratio ca. 50, 75, and 70 wt % of Brij 56/TMOS at 35, 40, and 25 °C, respectively.
ASJC Scopus subject areas
- Condensed Matter Physics
- Physical and Theoretical Chemistry
- Materials Chemistry
- Surfaces, Coatings and Films