Investigation on new mesoporous solid basic material MgO/SBA-15

Novel mesoporous solid basic material MgO/SBA-15 was prepared by use of impregnation of SBA-15 with magnesium acetate solution and /or combined microwave radiation. After calcination the loaded magnesium acetate could be converted to MgO that highly dispersed on the mesoporous host. MgO crystal phase was not observed in XRD patterns of the MgO/SBA-15 samples even when the loading amount increased as high as 20wt. -%. The efficiency of varies loading methods for dispersion of MgO on SBA-15 had been checked in this article, and most of them could make MgO uniformly dispersed in the porous support. Moreover, aluminiferous SBA-15 had been synthesized and employed as the carrier to support MgO. As the results revealed, an overlapped multi-layer structure of basic species formed on the MgO/SBA-15 mesoporous material, resulting in a lot of basic sites with medium strong basic strength.