中文摘要：

首先合成了一种新型双功能性离子液体1-甲基-3-（3＇-磺酸丙基）咪唑十二烷基磺酸盐（[PMIM（SO3H）][C12SO3]）,并采用FT-IR、^1H NMR和^13C NMR对其结构进行了表征;进一步以该离子液体为模板剂和酸源,以正硅酸乙酯（TEOS）为硅源,通过溶胶-凝胶法制备出介孔SiO2,利用TGA和FT-IR研究了介孔材料的形成过程,采用SAXRD、SEM、TEM和氮气等温吸附-脱附等手段对介孔材料的结构形貌进行了表征,并研究了其对Pb^2＋的吸附性能。结果显示,以[PMIM（SO3H）][C12SO3]为模板剂和酸源制备的介孔SiO2其比表面积、孔容、平均孔径大小分别为1 010m^2/g、0.95 cm^3/g、3.25 nm,其对重金属Pb^2＋有很好的吸附性能。

英文摘要：

A novel bifunctional ionic liquid 1-methyl-3-（3-sulfopropyl）-imidazolium n-dodecayl sulfonate（[PMIM（SO3H） ][C12SO3]） was conveniently synthesized,and the structure was determined by FT-IR,^1H NMR and ^13C NMR,respectively.Furthermore,mesoporous silica was prepared from ethyl silicate（TEOS） as silica source and the obtained ionic liquid as acid source and template by traditional sol-gel methods.The formation of the mesoporous material was characterized by TGA and FT-IR.Several methods such as SAXRD,SEM,TEM and nitrogen adsorption-desorption isotherms were employed to characterized the morphological structure and properties of mesoporous silica.The experiment on Pb^2＋,one kind of heavy metal ion,adsorption was applied so as to detect the property of the material.The resultant mesoporous silica material exhibited the specific surface area of 1 010 m^2/g,the pore volume of 0.95 cm^3/g and the average pore diameter size of 3.25 nm,respectively,while the mesoporous silica has a good adsorption property for heavy metal ion of Pb^2＋.