Synthesis of magnetic Fe3O4@nSiO2@Silica mesoporous as supported for catalytic application

Due to specific properties, core–shell Fe3O4@SiO2 and Fe3O4@nSiO2@mSiO2 nanostructureshave been extensively investigated for the contamination treatment of wastewater. However, thesereported materials were usually used as advanced adsorbents or catalyst-supports.In this study, we demonstratethat magnetic mesoporous silica Fe3O4@nSiO2@mSiO2 microspheres display high catalytic activity.the Fe3O4@nSiO2@mSiO2 microspheres were superparamagnetic and could be separated and collected easily and rapidly using a magnet. The samples were characterized by XRD, SEM and N2 adsorption–desorption technology.The results indicate that Fe3O4@nSiO2@mSiO2microspheres have high specific surface area (510 m2 g-1) and they were applied as catalyst-supports.

کلیدواژه ها:

superparamagnetic ، magnetic mesoporous silica ، catalyst-supports