Synthesis and characterization of ordered mesoporous silica

Abstract

Ordered mesoporous silica SBA-15 materials were synthesized by using Pluronic P123 (non-ionic triblock copolymer, EO(20)PO(70)EO(20)) as a template, under acidic condition. These materials were characterized by nitrogen adsorption-desorption measurements, scanning electron microscopy (SEM), X-ray diffraction (XRD) and thermo-gravimetric analysis (TGA). It was found that structural properties can be adjusted by the different temperatures and times in the reaction solutions. Obtained samples have high specific surface area ( GT 600 m(2)g(-1)) and developed mesoporous structure. Also, our measurements have shown that these materials have a certain amount of micropores.