Synthesis and characterization of ordered mesoporous silica
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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.
Keywords:Mesoporous silica / Specific surface / Microporosity
Source:Journal of Optoelectronics and Advanced Materials, 2009, 11, 11, 1656-1659
- Ministry of Science of the Republic of Serbia