对离子液体1-己基-3-甲基咪唑三(五氟乙基)三氟磷酸盐([hmim][FEP])的红外光谱特征峰进行了指认,红外光谱的测量范围为4000-400cm^-1。通过物理吸附固定化离子液体的方法,将离子液体[hmim][FEP]固定在硅胶上,并利用傅立叶吸收光谱(FT—IR)、比表面测定(BET)的方法对制备的产物进行了表征。结果表明[hmim][FEP]已成功地固定在硅胶上。
In this work, the Fourier transform infrared (FT-IR) spectrum of 1-n-hexyl-3-methylimidazolium tris (pentafluoroethyl) trifluorophosphate ([ hmim] [FEP]) was assigned. FT-IR spectrum was measured in the 4000 to 400 cm^-1 region. [hmim] [FEP] was immobilized on the porous silica gel by physical absorption. The structure were characterized and analyzed by BET surface area and FT-IR spectrum. The results indicated that the ionic liquid [hmim] [FEP] has been successfully immobilized on the porous silica gel.