离子液体支撑液膜应用研究进展

Application research progress of ionic liquid supported liquid membrane

离子液体作为一种新型绿色介质,受到研究学者的广泛关注。离子液体具有不易燃、无味、无污染、无蒸汽压、可循环使用等独特性质,被广泛应用于化学化工过程中。离子液体用于膜分离技术具有不易挥发、稳定性好的特点,近来对离子液体在支撑液膜方面的研究备受关注,离子液体支撑液膜在污染性气体的吸收分离方面具有高选择性、高渗透性等优势,在有机物的分离方面具有分离效果明显、耐用性强等优势,在化学反应方面具有催化效率高、可循环使用等优势,本文介绍了离子液体支撑液膜的常用制备方法和膜基材料的选择,探讨了离子液体支撑液膜的稳定性和分离选择性的影响因素,对离子液体支撑液膜在气体分离、有机物的分离、化学反应等方面的应用研究进行了综述。

Ionic liquid,as a new kind of green solvents,have received extensive attention of researchers.Ionic liquid is widely used in chemical process because the unique features,such as nonflammable,tasteless,no pollution,no detectable vapor pressure and recyclable.Ionic liquids used in membrane separation technology have the characteristics of less volatile,immiscibility with contact phase,good stability,etc.Recently much attention has been paid to the study of ionic liquids in the supported liquid membrane,ionic liquid supported liquid membrane has the advantages of high selectivity,and high permeability in the absorption and separation of gas,has the advantages of the separation effect is obvious,strong durability in the separation of organic matter,has the advantages of high catalytic efficiency,recycled in a chemical reaction.This review provides the preparation of ionic liquid supported liquid membrane and the selection of membrane-based material.The factors affecting the stability and separation selectivity of the ionic liquid supported liquid membrane was discussed.The application of the ionic liquid supported liquid membrane in the progress of separation and chemical reaction were summarized.