کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
593975 | 1453959 | 2012 | 7 صفحه PDF | دانلود رایگان |
Mesoporous mixed oxide nanoparticles consisting of MgO and TiO2 were synthesized via a sol–gel process by templating poly(vinyl chloride)-g-poly(oxyethylene methacrylate) (PVC-g-POEM) graft copolymer. The mesoporous structures and morphologies of the MgO/TiO2 mixed oxides were characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM) and nitrogen adsorption/desorption analysis. Interestingly, MgO/TiO2 mixed oxide exhibited much higher CO2 adsorption capacity (0.477 mol CO2/kg sorbent for 40:60 MgO/TiO2) than pure MgO (0.074) or TiO2 (0.063). This result arises from the increase in surface area and pore volume of the mixed oxide due to the formation of bimodal pores.
Mesoporous MgO/TiO2 mixed oxides were synthesized via a sol–gel process by templating poly(vinyl chloride)-g-poly(oxyethylene methacrylate) (PVC-g-POEM) graft copolymer. MgO/TiO2 mixed oxide exhibited much higher CO2 adsorption capacity than pure MgO or TiO2 due to the increased surface area and pore volume.Figure optionsDownload as PowerPoint slideHighlights
► Mesoporous MgO/TiO2 mixed oxides were synthesized via a sol–gel process.
► PVC-g-POEM graft copolymer was templated.
► MgO/TiO2 mixed oxide exhibited much higher CO2 adsorption capacity than pure MgO or TiO2.
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 414, 20 November 2012, Pages 75–81