This work distinctly combines the ionic liquid(IL)with supported catalyst,demonstrating the remarkably promoted activity in both selective oxidation of 1-phenylethanol over Pd/CNT and epoxidation of cis-cyclooctene over vanadium-exchanged faujasite zeolite catalyst(V-X)in the presence of IL 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide([emim][NTf2])as solvent/co-solvent.