Abstract: Recent applications of ionic liquids，such as [Bmim][BF4]，[Bmim][PF6]，[C2OHmim]Cl，[C2OHmim][BF4]，etc，for preparation of nanostructured TiO2 are reviewed. In addition to as solvents，ionic liquids can also be used as stabilizers in synthesizing nanostructured TiO2 with sol-gel，hydrothermal，microwave-assisted and electrochemistry methods. Compared with those in conventional organic solvents，nanostructured TiO2 prepared in ionic liquids exhibits smaller particle size and better dispersibility. Finally，problems and future research direction in this field are discussed.

摘要： 评述了离子液体[Bmim][BF4]、[Bmim][PF6]、[C2OHmim]Cl、[C2OHmim][BF4]、[Emim][Tf2N]、[Emim][AcO]、[Acmim]Br等在制备纳米TiO2中的应用。在采用溶胶-凝胶法、水热法、微波辅助法和电化学法制备纳米TiO2时，离子液体可作为溶剂和稳定剂。与其它溶剂相比，在离子液体中制备的纳米TiO2具有更细的粒度以及更好的分散性。指出了离子液体用于制备纳米TiO2存在的问题和今后研究的方向。