介孔分子筛改性及在吸附脱硫中的应用

摘要

Mesoporous silicas have been widely used in the field of adsorption-separation because of their large surface areas,pore volume,diameters,and highly ordered pore structure. In this paper,the modification methods of mesoporous silicas,including incorporation,impregnation,and the synthesis of silica-based mesoporous organic-inorganic hybrid materials,are reviewed. Recent studies on the application of mesoporous silicas in the adsorptive desulfurization of fuel,natural gas,coal gas,H2S, and SO2 are summarized. Meanwhile,the outlook on the modification of mesoporous silicas is proposed. The synthesis of new silica-based mesoporous organic-inorganic hybrid materials and their applications in adsorption areas are in the primary trend.%介孔分子筛由于具有较大的比表面积、孔容、孔径等优点使得其在吸附分离等领域得到了广泛的应用。本文综述了介孔分子筛改性的不同方法，包括嵌入法、负载法，以及有机-无机杂化介孔材料的制备等。对介孔分子筛在吸附脱硫方面的最新研究进展进行了总结，包括对燃料油、天然气、煤气中硫化物的吸附脱除，以及H2S、SO2等大气污染物的吸附脱除。同时对介孔分子筛的改性及发展前景进行了展望，合成新型有机-无机杂化介孔材料并将其应用于吸附等领域是未来发展的主要趋势。