为实现CO2的高效捕集,采用浸渍法将MEA、DEA分别负载到介孔材料SBA-15的孔道内,研究改性前后样品对CO2吸附性能的影响,其中主要分析不同温度下CO2吸附量的变化情况.通过X射线衍射(XRD)、低温N2吸附-脱附(BET)、热重分析(TGA)等手段对所得样品进行表征.结果表明,MEA、DEA均负载到SBA-15的孔道内部,且没有破坏介孔结构;经MEA、DEA改性后样品的吸附性能显著提高,最大吸附量分别提高了51%和75%.
To gathering the CO2 more efficiently,the impregnation method was imported to load the MEA and DEA to the pores of SBA-15.The adsorption performance of CO2 was studied before and after the SBA-15 modi-fication.A detailed analysis of the adsorption capacity under different temperature was made.The samples were characterized by powder X-ray diffraction (XRD),low temperature N2 adsorption-desorption (BET),thermo-gravimetric analysis (TGA).The results show that the MEA,DEA were loaded into the SBA-15 's channels, and there is no destruction of the mesoporous structure.The adsorption performance has been increased obvi-ously when the SBA-15 is modified by MEA/DEA.And the maximum adsorption capacity has been improved by 51% and 75% respectively.
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