CuO_x loaded mesoporous silicas with highly ordered mesoporous structures (Cu-SBA-15) and different silicon to copper ratios were synthesized by using P123 as a template under mild acidic conditions. XRD and N₂ sorption results confirm the well-ordered 2D mesoporous structure with a high specific surface area and a large pore volume. The pore diameter of Cu-SBA-15 increases from 7.9 to 8.5 nm with a concomitant decrease of the specific surface area from 865 to 802 m²/g as the amount of Cu in the silica framework is increased. We also show the introduction of Cu in the SBA-15 makes a significant change in the final morphology, which changes from rod to curve shaped morphology when the amount of Cu in the SBA-15 is increased. XRD results confirm the presence of CuO nanoparticles inside the nanochannels of SBA-15. The materials were used as adsorbents for high pressure CO₂ adsorption at different temperatures −5, 0, 10 and 25 °C and pressures up to 30 bar. The highest CO₂ adsorption of 27.6 mmol/g at −5 °C was achieved for Cu-SBA-15 sample with a n_Si/Cu ratio of 5 and was found to be much higher than that of pure SBA-15 silica under similar conditions, illustrating the role of CuO_x doping in the SBA-15 framework.

以P123为模板，在温和的酸性条件下，合成了具有高度有序介孔结构（Cu-SBA-15）和不同硅铜比的CuO _x介孔二氧化硅。XRD和N _2的吸附结果证实了具有高比表面积和大孔体积的井然有序的2D介孔结构。Cu-SBA-15的孔径从7.9 nm增大到8.5 nm，比表面积从865减小到802 m ²/ g随着二氧化硅骨架中Cu含量的增加。我们还显示，在SBA-15中引入Cu会使最终形态发生显着变化，当SBA-15中的Cu含量增加时，其形态会从棒状变为曲线状。XRD结果证实在SBA-15的纳米通道内部存在CuO纳米颗粒。该材料被用作在-5、0、10和25°C的不同温度和最高30 bar的压力下进行高压CO ₂吸附的吸附剂。对于n _{Si / Cu}比为5的Cu-SBA-15样品，在-5°C时，CO ₂的最高吸附量为27.6 mmol / g，在相似的条件下，该吸附量远高于纯SBA-15二氧化硅条件，说明了CuO _x的作用 在SBA-15框架中进行掺杂。