Study on the Pore Size Expansion of Mesoporous Materials V-MCM-41 Using N, N-Dimethyl Formamide Amine

Fang Guo; Jun Qiang Xu; Jun Li

doi:10.4028/www.scientific.net/AMR.807-809.365

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Study on the Pore Size Expansion of Mesoporous Materials V-MCM-41 Using N, N-Dimethyl Formamide Amine
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Study on the Pore Size Expansion of Mesoporous Materials V-MCM-41 Using N, N-Dimethyl Formamide Amine

Abstract:

The mesoporous materials with pore size expansion were synthesized by hydrothermal method with cetyltrimethylammonium bromide (CATB) as template. The N, N-dimethyl formamide (DMFA) amine was selected to expand the pore size of these materials. The samples were characterized by XRD, N₂ adsorption and SEM. The pore size could be changed with post treatment temperature. The range of pore size was 3.94 - 5.83 nm. The pore size didn't increase with the increasing of post treatment temperature. The SEM pictures of materials with pore expansion by post-hydrothermal treatment clearly revealed that the resulting particles were almost perfectly spherical in shape. The XRD analysis showed the typical Bragg reflections of the hexagonal V-MCM-41 material by DMFA at 130 °C for 48 h in the post hydrothermal synthesis.