Large-pore mesoporous silica (MSU-J) with worm-hole framework structure was prepared and modified with triethylene tetramine (TETA) by wet-impregnation.It was used as adsorbent for CO2.The hydrolyzing mesoporous silica (H-MSU-J) was prepared by boiling the MSU-J in distilled water.CO2 adsorption capacity was investigated at different temperatures and TETA loadings.The results manifested adsorption capacity decreased with increase of adsorption temperature.Increase of TETA content increased the CO2 adsorption.Repeated adsorption/desorption cycles revealed amine-impregnated materials were efficient in CO2 adsorption.
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基金资助
国家自然科学基金项目(51373135);西北工业大学种子基金(Z2014170);陕西省大学生创新创业训练计划项目(201510699222)
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