Research Article

Formation of Mesoporous Materials from Silica Dissolved in Various NaOH Concentrations: Effect of pH and Ionic Strength

Figure 2

TEM images of mesoporous materials synthesized with NaOH/SiO2 ratio of 0.5 at pH 11.1 (a) and 11.3 (b). Corresponding nitrogen adsorption/desorption isotherms are presented in Figure 1 (solid triangle for pH 11.1 and solid square for pH 11.3).